Concept explainers
(a)
Interpretation:
The number of significant figures present in the answer of
Concept Introduction:
Significant figures: The digits that are measured in a number including one estimated digit are called as significant figures.
The answers for those calculations that involve multiplication and division will have the same number of significant figures as the original number with the fewest number of significant figures.
(b)
Interpretation:
The number of significant figures present in the answer of
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
The number of significant figures present in the answer of
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
The number of significant figures present in the answer of
Concept Introduction:
Significant figures: The digits that are measured in a number including one estimated digit are called as significant figures.
The answers for those calculations that involve addition and subtraction will have the same number of decimal places as the original number with the fewest decimal places.
(e)
Interpretation:
The number of significant figures present in the answer of
Concept Introduction:
Refer to part (d).
(f)
Interpretation:
The number of significant figures present in the answer of
Concept Introduction:
Refer to part (a).
(g)
Interpretation:
The number of significant figures present in the answer of
Concept Introduction:
Refer to part (d).
(h)
Interpretation:
The number of significant figures present in the answer of
Concept Introduction:
Refer to part (d).
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EBK FOUNDATIONS OF COLLEGE CHEMISTRY
- Perform the following calculations and report each answer with the correct number of significant figures. (a) 635 ✕ 335 (b) (5.23 ✕ 102) ✕ (6.8 ✕ 103) (c) 27.2/13.383 (d) 8179 ✕ 0.000051 (e) 14.23 + 27360 + 84.5721 (f) 47.2 + 0.291arrow_forwardQ9. I am unsure on how to get the final answer. I believe we have to convert the number to scientific notation but I’m not sure how they got that answer.arrow_forwardPerform the following calculations and report each answer with the correct number of significant figures. (a) 60.9 x 35 4.0 2100 (b) 0.144 +0.0070 + 0.011 4.0 X (c) 37 x 92 x 1.857 4.0 6400 (d) 16 4.0 (e) 8.63 x (f) 4.0 (h) 0.18 0.6410 4.0 180 + 7.40 + 0.013 0.0350 0.502 (g) 28.7 0.0483 4.0 4.0 (92.4 91.46) 44.70 X X Check the number of significant figures.arrow_forward
- Write the following numbers in standard notation. Use a ter-minal decimal point when needed:(a) 6.500*10^3(b) 3.46*10^5(c) 7.5*10^2(d) 1.8856*10^2arrow_forwardExpress the results of the following additions and subtractions to the proper number of significant figures. All of thenumbers are measured quantities.(a) 245.876+ 4.65+ 0.3678 =(b) 798.36 - 1005.7 + 129.652 =(c) 7.98 × 1017 + 6.472 × 1019 =(d) (4.32 × 10-15) - (6.257 × 10-14) - (2.136 × 10-13) =arrow_forwardEvaluate each of the following mathematical expressions, and express the answer to the correct number of significant digits. (a) 45.3468 + 0.85 + 7.468 (b) 9.4458 + 3.7675 - 2.71 (c) 0.8294 + 0.217 + 4.96 (d) (7.611 + 9.81 + 3.6117) / 3.0arrow_forward
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