
Concept explainers
(a)
Interpretation:
In the given calculation, number of significant figures that the final answer should have, following the calculation should be determined, without performing the actual calculation.
Concept Introduction:
In calculations, for multiplication or division, the number of significant figures in the result is same as that in the measurement with the smallest number of significant figures. So the measurement is limiting because it limits the number of significant figures in the results. For addition or subtraction, the limiting term is the one with the smallest number of decimal places.

Answer to Problem 16CR
The answer will have two significant figures.
Explanation of Solution
The answer will have two significant figures, because number
(b)
Interpretation:
In the given calculation, number of significant figures that the final answer should have, following the calculation should be determined, without performing the actual calculation.
Concept Introduction:
In calculations, for multiplication or division, the number of significant figures in the result is same as that in the measurement with the smallest number of significant figures. So the measurement is limiting because it limits the number of significant figures in the results. For addition or subtraction, the limiting term is the one with the smallest number of decimal places.

Answer to Problem 16CR
The answer should have two significant figures.
Explanation of Solution
The answer will have two significant figures. According to Bodmas rule, if an expression contains brackets, we have to first solve or simplify the bracket then division, multiplication, addition and subtraction from left to right. So in the calculation divisor has addition calculation within brackets. However after the simplification divisor should have four significant figures. After the simplification, there is a division calculation. Because number
(c)
Interpretation:
In the given calculation, number of significant figures that the final answer should have, following the calculation should be determined, without performing the actual calculation.
Concept Introduction:
In calculations, for multiplication or division, the number of significant figures in the result is same as that in the measurement with the smallest number of significant figures. So the measurement is limiting because it limits the number of significant figures in the results. For addition or subtraction, the limiting term is the one with the smallest number of decimal places.

Answer to Problem 16CR
The final answer should have two decimal places and three significant figures.
Explanation of Solution
In addition and subtraction, limiting term is the one with smallest number of decimal places. Because
(d)
Interpretation:
In the given calculation, number of significant figures that the final answer should have, following the calculation should be determined, without performing the actual calculation.
Concept Introduction:
In calculations, for multiplication or division, the number of significant figures in the result is same as that in the measurement with the smallest number of significant figures. So the measurement is limiting because it limits the number of significant figures in the results. For addition or subtraction, the limiting term is the one with the smallest number of decimal places.

Answer to Problem 16CR
The answer should have three significant figures.
Explanation of Solution
The answer will have three significant figures. According to Bodmas rule, if an expression contains brackets, we have to first solve or simplify the bracket then division, multiplication, addition and subtraction from left to right. So in the calculation there is an addition calculation within brackets. After the simplification it should have two decimal places as
(e)
Interpretation:
In the given calculation, number of significant figures that the final answer should have, following the calculation should be determined, without performing the actual calculation.
Concept Introduction:
In calculations, for multiplication or division, the number of significant figures in the result is same as that in the measurement with the smallest number of significant figures. So the measurement is limiting because it limits the number of significant figures in the results. For addition or subtraction, the limiting term is the one with the smallest number of decimal places.

Answer to Problem 16CR
The answer should have one significant figure.
Explanation of Solution
The answer will have one significant figure. In addition and subtraction, limiting term is the one with smallest decimal places. Because
(f)
Interpretation:
In the given calculation, number of significant figures that the final answer should have, following the calculation should be determined, without performing the actual calculation.
Concept Introduction:
In calculations, for multiplication or division, the number of significant figures in the result is same as that in the measurement with the smallest number of significant figures. So the measurement is limiting because it limits the number of significant figures in the results. For addition or subtraction, the limiting term is the one with the smallest number of decimal places.

Answer to Problem 16CR
The answer should have two significant figures.
Explanation of Solution
The answer will have two significant figures. According to Bodmas rule, if an expression contains brackets, we have to first solve or simplify the bracket then division, multiplication, addition and subtraction from left to right. So in the calculation there is an addition calculation within brackets. After the simplification it should have one decimal place as
(g)
Interpretation:
In the given calculation, number of significant figures that the final answer should have, following the calculation should be determined, without performing the actual calculation.
Concept Introduction:
In calculations, for multiplication or division, the number of significant figures in the result is same as that in the measurement with the smallest number of significant figures. So the measurement is limiting because it limits the number of significant figures in the results. For addition or subtraction, the limiting term is the one with the smallest number of decimal places.

Answer to Problem 16CR
The final answer should have two significant figures.
Explanation of Solution
In multiplication and division, limiting term is the one with smallest number of significant figures. Because
(h)
Interpretation:
In the given calculation, number of significant figures that the final answer should have, following the calculation should be determined, without performing the actual calculation.
Concept Introduction:
In calculations, for multiplication or division, the number of significant figures in the result is same as that in the measurement with the smallest number of significant figures. So the measurement is limiting because it limits the number of significant figures in the results. For addition or subtraction, the limiting term is the one with the smallest number of decimal places.

Answer to Problem 16CR
The final answer should have one decimal place with three significant figures.
Explanation of Solution
In addition and subtraction, limiting term is the one with smallest number of decimal places. Because
Want to see more full solutions like this?
Chapter 3 Solutions
Introductory Chemistry: A Foundation
- Predict the product of this organic reaction: CH3 NH2 Δ CH3-CH-CH3 + HO-C-CH2-N-CH3 P+H₂O Specifically, in the drawing area below draw the condensed structure of P. If there is no reasonable possibility for P, check the No answer box under the drawing area. Explanation Check Click anywhere to draw the first atom of your structure. Xarrow_forwardIn the scope of the SCH4U course, please thoroughly go through the second questionarrow_forwardPlease help me solve these two problems. Thank you in advance.arrow_forward
- Naming and drawing unsubstituted esters Write the systematic name of each organic molecule: Explanation structure Check name Х 2/5arrow_forwardPredict the product of this organic reaction: =0 CH3-O-CH2-C-OH + CH3-OH H P+H₂O A Specifically, in the drawing area below draw the condensed structure of P. If there isn't any P because this reaction won't happen, check the No reaction box under the drawing area. Click anywhere to draw the first atom of your structure. ☐arrow_forwardNaming and drawing USUsted ester Draw the condensed structure of ethyl hexanoate. Click anywhere to draw the first atom of your structure. × A : ☐arrow_forward
- Extra for Experts: Your Future in Chemistry. As you now know, there are countless jobs that involve chemistry! Research a chemistry profession that interests you. In your answer, discuss which aspects of the job most appeal to you.arrow_forwardMISSED 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 >arrow_forwardIdentify and provide a brief explanation of Gas Chromatography (GC) within the context of chemical analysis of food. Incorporate the specific application name, provide a concise overview of sample preparation methods, outline instrumental parameters and conditions ultilized, and summarise the outcomes and findings achieved through this analytical approach.arrow_forward
- Identify and provide a concise explanation of the concept of signal-to-noise ratio (SNR) in the context of chemical analysis. Provide specific examples.arrow_forwardIdentify and provide a concise explanation of a specific analytical instrument capable of detecting and quantifying trace compounds in food samples. Emphasise the instrumental capabilities relevant to trace compound analysis in the nominated food. Include the specific application name (eg: identification and quantification of mercury in salmon), outline a brief description of sample preparation procedures, and provide a summary of the obtained results from the analytical process.arrow_forwardIdentify and provide an explanation of what 'Seperation Science' is. Also describe its importance with the respect to the chemical analysis of food. Provide specific examples.arrow_forward
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningGeneral, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage Learning

