Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
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For Q12. I did the work right and almost got the right answer but my question is why is that the correct answer instead of 0.0144. I know we have 4 sig figs so is it because that first zero is insignificant? That’s why it’s 5?
Transcribed Image Text:876.9 in ³ m³
(39,371)³ = (1 m) ²³
3
(39.37) ³ cm₂ ³ = 1 m³
3-
61023.378 cm²³ = 1² m³
m
3
m
39.37in
(39.37 in)
)
876.9 ins
x 1m²
tm?
61023 378 in ³
-0.01436 9 9
0.0144
3
0.01437 m
61023.378
3
Transcribed Image Text:speed
(a) 1.34 mi/hr
(b) 0.0022 mi/hr
(d) 8.087 mi/hr
(c) 8.09 mi/hr
Q11. An automobile travels 97.2 km on 7.88 L of ga
What is the gas mileage for the automobile in
per gallon?
(a) 2.02 mi/gal
(c) 0.034 mi/gal
(b) 7.67 mi/gal
(d) 29.0 mi/gal
Q12. Convert 876.9 in.³ to m³.
(a) 0.01437 m³
(b) 22.27 m³
(c) 5.351 x 107 m³
(d) 0.014 m³
Q13. Convert 27 m/s to km/hr.
(a) 97 km/hr
(b) 7.5 km/hr
(c) 1.6 km/hr
Lor (d) 0.027 km/hr
Q14. A cube measures 2.5 cm on each edge and h
of 66.9 g. Calculate the density of the mater
poses the cube. (The volume of a
edge length cubed.)
cube is eq
ume of a c
(b) 4.3 g/cm³
(a) 10.7 g/cm³
(c) 0.234 g/cm³
(d) 26.7 g/cm³
Q15. What is the mass of 225 mL of a liquid that
of 0.880 g/mL?
(a) 198 g
(b) 0.0039 g
(c) 0.198 g
Q16. What is the edge length of a 155-g iron cub
(The density of iron is 7.86 g/cm³, and the
3 smisel
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