(a) Interpretation: The given number should be rounded off to three significant digits. 0.00042557 Concept Introduction: Rules for rounding off numbers are as follows: If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up. For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40. If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down. For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Question

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Answer 1

Question

Chapter 2, Problem 136AP

Interpretation Introduction

(a)

Interpretation:

The given number should be rounded off to three significant digits.

0.00042557

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(b)

Interpretation:

The given number should be rounded off to three significant digits.

4.0235×10−5

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(c)

Interpretation:

The given number should be rounded off to three significant digits.

5, 991, 556

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(d)

Interpretation:

The given number should be rounded off to three significant digits.

399.85

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(d)

Interpretation:

The given number should be rounded off to three significant digits.

0.0059998

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

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MISSED THIS? Read Section 19.9 (Pages 878-881); Watch IWE 19.10 Consider the following reaction: CH3OH(g) CO(g) + 2H2(g) (Note that AG,CH3OH(g) = -162.3 kJ/mol and AG,co(g)=-137.2 kJ/mol.) Part A Calculate AG for this reaction at 25 °C under the following conditions: PCH₂OH Pco PH2 0.815 atm = 0.140 atm 0.170 atm Express your answer in kilojoules to three significant figures. Ο ΑΣΦ AG = -150 Submit Previous Answers Request Answer □? kJ × Incorrect; Try Again; 2 attempts remaining Calculate the free energy change under nonstandard conditions (AGrxn) by using the following relationship: AGrxn = AGrxn + RTInQ, AGxn+RTInQ, where AGxn is the standard free energy change, R is the ideal gas constant, T is the temperature in kelvins, a is the reaction quotient. Provide Feedback Next >

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Answer 2

Question

Chapter 2, Problem 136AP

Interpretation Introduction

(a)

Interpretation:

The given number should be rounded off to three significant digits.

0.00042557

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(b)

Interpretation:

The given number should be rounded off to three significant digits.

4.0235×10−5

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(c)

Interpretation:

The given number should be rounded off to three significant digits.

5, 991, 556

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(d)

Interpretation:

The given number should be rounded off to three significant digits.

399.85

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(d)

Interpretation:

The given number should be rounded off to three significant digits.

0.0059998

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Expert Solution & Answer

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Answer 3

Question

Chapter 2, Problem 136AP

Interpretation Introduction

(a)

Interpretation:

The given number should be rounded off to three significant digits.

0.00042557

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(b)

Interpretation:

The given number should be rounded off to three significant digits.

4.0235×10−5

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(c)

Interpretation:

The given number should be rounded off to three significant digits.

5, 991, 556

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(d)

Interpretation:

The given number should be rounded off to three significant digits.

399.85

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(d)

Interpretation:

The given number should be rounded off to three significant digits.

0.0059998

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

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Answer 4

Question

Chapter 2, Problem 136AP

Interpretation Introduction

(a)

Interpretation:

The given number should be rounded off to three significant digits.

0.00042557

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(b)

Interpretation:

The given number should be rounded off to three significant digits.

4.0235×10−5

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(c)

Interpretation:

The given number should be rounded off to three significant digits.

5, 991, 556

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(d)

Interpretation:

The given number should be rounded off to three significant digits.

399.85

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(d)

Interpretation:

The given number should be rounded off to three significant digits.

0.0059998

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 2, Problem 136AP

Interpretation Introduction

(a)

Interpretation:

The given number should be rounded off to three significant digits.

0.00042557

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(b)

Interpretation:

The given number should be rounded off to three significant digits.

4.0235×10−5

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(c)

Interpretation:

The given number should be rounded off to three significant digits.

5, 991, 556

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(d)

Interpretation:

The given number should be rounded off to three significant digits.

399.85

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Interpretation Introduction

(d)

Interpretation:

The given number should be rounded off to three significant digits.

0.0059998

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Answer 6

Chapter 2, Problem 136AP

Interpretation Introduction

(a)

Interpretation:

The given number should be rounded off to three significant digits.

0.00042557

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Answer 7

Chapter 2, Problem 136AP

Interpretation Introduction

(a)

Interpretation:

The given number should be rounded off to three significant digits.

0.00042557

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The given number should be rounded off to three significant digits.

4.0235×10−5

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The given number should be rounded off to three significant digits.

4.0235×10−5

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Answer 10

Interpretation Introduction

(c)

Interpretation:

The given number should be rounded off to three significant digits.

5, 991, 556

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Answer 11

Interpretation Introduction

(c)

Interpretation:

The given number should be rounded off to three significant digits.

5, 991, 556

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Answer 12

Interpretation Introduction

(d)

Interpretation:

The given number should be rounded off to three significant digits.

399.85

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Answer 13

Interpretation Introduction

(d)

Interpretation:

The given number should be rounded off to three significant digits.

399.85

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Answer 14

Interpretation Introduction

(d)

Interpretation:

The given number should be rounded off to three significant digits.

0.0059998

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Answer 15

Interpretation Introduction

(d)

Interpretation:

The given number should be rounded off to three significant digits.

0.0059998

Concept Introduction:

Rules for rounding off numbers are as follows:

If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.

For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.

If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.

For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.

Answer 16

Expert Solution & Answer

Answer 17

Expert Solution & Answer

Answer 18

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Answer 19

Ch. 2.1 - Exercise 2.1 Write the numbers 357 and 0.0055 in...Ch. 2.2 - What if you were not allowed to use units for one...Ch. 2.5 - Exercise 2.2 Give the number of significant...Ch. 2.5 - Exercise 2.3 Give the answer for each calculation...Ch. 2.6 - Exercise 2.4 Wine is often bottled in 0.750-L...Ch. 2.6 - Exercise 2.5 Racing cars at the Indianapolis Motor...Ch. 2.7 - Exercise 2.6 Which temperature is colder, 172 K or...Ch. 2.7 - Exercise 2.7 Hot tubs are often maintained at 41...Ch. 2.7 - Exercise 2.8 An antifreeze solution in a car’s...Ch. 2.8 - Exercise 2.9A student wants to identify the main...

Solution Summary: The author explains that the given number should be rounded off to three significant digits.

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