solve the following problems, stating answers to the proper number of significant figures: a) 12.62 + 1.5 + 0.25=? b) ( 2.25 x 103)(4.80 X 104)=? c) (452) (6.2) / 14.3=? d) (0.0394)(12.8)=? e) 0.4278 / 59.6 =? f) 10.4 + 3.75(1.5 x 104) =

solve the following problems, stating answers to the proper number of significant figures: a) 12.62 + 1.5 + 0.25=? b) ( 2.25 x 103)(4.80 X 104)=? c) (452) (6.2) / 14.3=? d) (0.0394)(12.8)=? e) 0.4278 / 59.6 =? f) 10.4 + 3.75(1.5 x 104) =

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter2: Measurements And Calculations

Section: Chapter Questions

Problem 9ALQ: In lab you report a measured volume of 128.7 mL of water. Using significant figures as a measure of...

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Concept explainers

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.

Question

solve the following problems, stating answers to the proper number of significant figures:

a) 12.62 + 1.5 + 0.25=?

b) ( 2.25 x 10³)(4.80 X 10⁴)=?

c) (452) (6.2) / 14.3=?

d) (0.0394)(12.8)=?

e) 0.4278 / 59.6 =?

f) 10.4 + 3.75(1.5 x 10⁴) =?

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