(a) Interpretation: ( 7.9 × 10 4 ) + ( 5.2 × 10 4 ) must be added using the correct number of significant figures in the answer. Concept Introduction: For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Question

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Answer 1

Question

Chapter 1, Problem 9P

Interpretation Introduction

(a)

Interpretation:

(7.9×104)+(5.2×104) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(b)

Interpretation:

(8.73×104)+(6.7×103) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(c)

Interpretation:

(3.63×10−4)+(4.776×10−3) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures after decimal point is chosen and in the final answer same number of significant number is kept after decimal point. The answer should not be more precise than the number with minimum number of significant figures.

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In the video, we looked at the absorbance of a certain substance and how it varies depending on what wavelength of light we are looking at. Below is a similar scan of a different substance. What color BEST describes how this substance will appear? Absorbance (AU) Violet Blue Green Orange 1.2 1.0- 0.8- 0.6- 0.4- 0.2 0.0 450 500 550 600 650 700 Wavelength (nm) violet indigo blue green yellow orange red Red O Cannot tell from this information In the above graph, what causes -450 nm wavelength of light to have a higher absorbance than light with a -550 nm wavelength? Check all that are true. The distance the light travels is different The different data points are for different substances The concentration is different at different times in the experiment Epsilon (molar absortivity) is different at different wavelengths

5. a. Data were collected for Trial 1 to determine the molar mass of a nonvolatile solid solute when dissolved in cyclo- hexane. Complete the table for the analysis (See Report Sheet). Record calculated values with the correct number of significant figures. B. Freezing Point of Cyclohexane plus Calculation Zone Unknown Solute 2. Mass of cyclohexane (g) 10.14 Part C.4 3. Mass of added solute (g) 0.255 C. Calculations 1. k; for cyclohexane (°C⚫ kg/mol) 20.0 2. Freezing point change, AT, (°C) 3.04 Part C.6 3. Mass of cyclohexane in solution (kg) 4. Moles of solute, total (mol) Show calculation. 5. Mass of solute in solution, total (g) 6. Molar mass of solute (g/mol) Show calculation.

Answer 2

Question

Chapter 1, Problem 9P

Interpretation Introduction

(a)

Interpretation:

(7.9×104)+(5.2×104) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(b)

Interpretation:

(8.73×104)+(6.7×103) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(c)

Interpretation:

(3.63×10−4)+(4.776×10−3) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures after decimal point is chosen and in the final answer same number of significant number is kept after decimal point. The answer should not be more precise than the number with minimum number of significant figures.

Expert Solution & Answer

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Answer 3

Question

Chapter 1, Problem 9P

Interpretation Introduction

(a)

Interpretation:

(7.9×104)+(5.2×104) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(b)

Interpretation:

(8.73×104)+(6.7×103) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(c)

Interpretation:

(3.63×10−4)+(4.776×10−3) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures after decimal point is chosen and in the final answer same number of significant number is kept after decimal point. The answer should not be more precise than the number with minimum number of significant figures.

Expert Solution & Answer

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Answer 4

Question

Chapter 1, Problem 9P

Interpretation Introduction

(a)

Interpretation:

(7.9×104)+(5.2×104) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(b)

Interpretation:

(8.73×104)+(6.7×103) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(c)

Interpretation:

(3.63×10−4)+(4.776×10−3) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures after decimal point is chosen and in the final answer same number of significant number is kept after decimal point. The answer should not be more precise than the number with minimum number of significant figures.

Expert Solution & Answer

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Answer 5

Chapter 1, Problem 9P

Interpretation Introduction

(a)

Interpretation:

(7.9×104)+(5.2×104) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(b)

Interpretation:

(8.73×104)+(6.7×103) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(c)

Interpretation:

(3.63×10−4)+(4.776×10−3) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures after decimal point is chosen and in the final answer same number of significant number is kept after decimal point. The answer should not be more precise than the number with minimum number of significant figures.

Answer 6

Chapter 1, Problem 9P

Interpretation Introduction

(a)

Interpretation:

(7.9×104)+(5.2×104) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Answer 7

Chapter 1, Problem 9P

Interpretation Introduction

(a)

Interpretation:

(7.9×104)+(5.2×104) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Answer 8

Interpretation Introduction

(b)

Interpretation:

(8.73×104)+(6.7×103) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Answer 9

Interpretation Introduction

(b)

Interpretation:

(8.73×104)+(6.7×103) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Answer 10

Interpretation Introduction

(c)

Interpretation:

(3.63×10−4)+(4.776×10−3) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures after decimal point is chosen and in the final answer same number of significant number is kept after decimal point. The answer should not be more precise than the number with minimum number of significant figures.

Answer 11

Interpretation Introduction

(c)

Interpretation:

(3.63×10−4)+(4.776×10−3) must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures after decimal point is chosen and in the final answer same number of significant number is kept after decimal point. The answer should not be more precise than the number with minimum number of significant figures.

Answer 12

Expert Solution & Answer

Answer 13

Expert Solution & Answer

Answer 14

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Answer 15

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Solution Summary: The author explains that the final result must contain two significant figures.

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