SCIENCE_Q1_MODULE_5_quantity-really-matters_FINALO.6. What is the percent by volume of isopropanol in a 90ml solution that contains25ml isopropanol?a. 26.8 % isopropanolb. 26.9 % isopropanolc. 27.8 % isopropanold. 27.9 % isopropanolco a1_Science7_Modules7. What is the volume of a 20% methyl solution that contains 15mL of methyl?a. 6 ml of methylb. 4 mL of methylc. 5 ml of methyld. 3mL of methylс.8. What is the percent by mass concentration of a solution that contains 30.0gof sugar dissolved in 150g of water?a. 16.5%b. 16.7%c. 17.6 %d. 17.7%9. A genuine sterling silver items is 92.5% silver by mass. This means that:a. 92.5 g is silver and 7.5g is another metal (usually copper)b. 0.5 g is silver and 92.5g is another metal (usually copper)c. 46.25g is silver and 46.25g is another metal (usually copper)d. 92.5g of the jewelry is made up of pure silver10.The following are quantitative descriptions of concentrations, EXCEPT:a. percent by massb. polarityc. dilute solutiond. PPM2.

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6. What is the percent by volume of isopropanol in a 90ml solution that contains 25ml isopropanol? a. 26.8 % isopropanol b. 26.9 % isopropanol c. 27.8 % isopropanol d. 27.9 % isopropanol

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

SCIENCE_Q1_MODULE_5_quantity-really-matters_FINALO.
6. What is the percent by volume of isopropanol in a 90ml solution that contains
25ml isopropanol?
a. 26.8 % isopropanol
b. 26.9 % isopropanol
c. 27.8 % isopropanol
d. 27.9 % isopropanol
co a1_Science7_Modules
7. What is the volume of a 20% methyl solution that contains 15mL of methyl?
a. 6 ml of methyl
b. 4 mL of methyl
c. 5 ml of methyl
d. 3mL of methyl
с.
8. What is the percent by mass concentration of a solution that contains 30.0g
of sugar dissolved in 150g of water?
a. 16.5%
b. 16.7%
c. 17.6 %
d. 17.7%
9. A genuine sterling silver items is 92.5% silver by mass. This means that:
a. 92.5 g is silver and 7.5g is another metal (usually copper)
b. 0.5 g is silver and 92.5g is another metal (usually copper)
c. 46.25g is silver and 46.25g is another metal (usually copper)
d. 92.5g of the jewelry is made up of pure silver
10.The following are quantitative descriptions of concentrations, EXCEPT:
a. percent by mass
b. polarity
c. dilute solution
d. PPM
2.

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