of significant figures contained in each of the followingmeasurements:b. 25.0 mLc. 54.7 mL3d. 8.5090 ge. 0.0831 g2. Perform the following calculations and report the answers with appropriate unitsand the correct number of significant figures:a. 53.18 g+1.014 g +0.3270 g 54.1949+ l. o14gb. 10.35 cm x 4.15 cm x 1.10 cm: 54.5619 54.52c. 36.140 g 4.08 mL 3.2 57843193. A student uses a stoppered 25.0-mL volumetric flask to determine the density of aliquid. The mass of the empty flask and stopper was 25.1841 g. The mass of thestoppered flask filled with liquid up to the scratch mark was 45.0379 g. Calculatethe density of the liquid in appropriate units and with the correct number ofsignificant figures.4. Calculate the error and percent error of a sample of water using the following data:the actual density of water at 23 °C is 0.999765 g mL"' and the experimental density(at 23 °C) is 1.097 g mL'. Show your work and watch your significant figures.-1ost-Lab QuestionsBased on your results, what is the composition of your sample of 1982 pennies? Hovdo you know? Explain in full sentences.You determined the densities of copper or zinc. Suppose during the experinment sowater splashed out of the graduated cylinder when you place the pennies into it.you think that it affected your results? Explain.Will your densities be affected if air bubbles got trapped between the metal shothe pennies samples? Explain.no,

Since you have posted multiple questions as per the policy we can not answer more than one per…

2. Perform the following calculations and report the answers with appropriate units and the correct number of significant figures: a. 53.18 g+ 1.014 g+ 0.3270 g 54.1999 b. 10.35 cm x 4.15 cm x 1.10 cm c. 36.140 g ÷ 4.08 mL (2 Q57643r4 l. ol4g = B4.5295 : 54.52195

2. Perform the following calculations and report the answers with appropriate units and the correct number of significant figures: a. 53.18 g+ 1.014 g+ 0.3270 g 54.1999 b. 10.35 cm x 4.15 cm x 1.10 cm c. 36.140 g ÷ 4.08 mL (2 Q57643r4 l. ol4g = B4.5295 : 54.52195

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 48E: Although the preferred SI unit of area is the square meter, land is often measured in the metric...

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Question

of significant figures contained in each of the following
measurements:
b. 25.0 mL
c. 54.7 mL3
d. 8.5090 g
e. 0.0831 g
2. Perform the following calculations and report the answers with appropriate units
and the correct number of significant figures:
a. 53.18 g+1.014 g +0.3270 g 54.1949+ l. o14g
b. 10.35 cm x 4.15 cm x 1.10 cm
: 54.5619 54.52
c. 36.140 g 4.08 mL 3.2 5784319
3. A student uses a stoppered 25.0-mL volumetric flask to determine the density of a
liquid. The mass of the empty flask and stopper was 25.1841 g. The mass of the
stoppered flask filled with liquid up to the scratch mark was 45.0379 g. Calculate
the density of the liquid in appropriate units and with the correct number of
significant figures.
4. Calculate the error and percent error of a sample of water using the following data:
the actual density of water at 23 °C is 0.999765 g mL"' and the experimental density
(at 23 °C) is 1.097 g mL'. Show your work and watch your significant figures.
-1
ost-Lab Questions
Based on your results, what is the composition of your sample of 1982 pennies? Hov
do you know? Explain in full sentences.
You determined the densities of copper or zinc. Suppose during the experinment so
water splashed out of the graduated cylinder when you place the pennies into it.
you think that it affected your results? Explain.
Will your densities be affected if air bubbles got trapped between the metal sho
the pennies samples? Explain.
no,

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