1. How many grams of water must be added to 10.0 g of Ca(NO3)2 in order to prepare a12.0%(m/m) solution?2. Calculate the volume percent of solute in each of the following solutions. a. 20.0 mL of methylalcohol in enough water to give 475 mL of solution b. 4.00 ml of bromine in enough carbontetrachloride to give 87.0 mL of solution3. For each of the following solutions, how many milliliters of water should be added to yield asolution that has a concentration of 0.100 M?a. 50.0 ml of 3.00M Naclb. 2.00 mL of 1.00 M NacIc. 1.45 L of 6.00 M NacId. 75.0 mL of 0.110 M Nacl4. Lead is a toxic substance. The "normal" lead content in human blood is about 0.40 partper million (that is, 0.40 g of lead per million grams of blood). A value of 0.80 part permillion (ppm) is considered to be dangerous. How many grams of lead are contained in6.0x10' g of blood (the amount in an average adult) if the lead content is 0.62 ppm?5. Calculate the molarity of each of the following solutions:(a) 29.0 g of ethanol (C,H,OH) in 545 ml of solution,(b) 15.4 g of sucrose (C„H„01) in 74.0 mL of solution,(c) 9.00 g of sodium chloride (NacI) in 86.4 mL of solution.

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1. How many grams of water must be added to 10.0 g of Ca(NO3)2 in order to prepare a 12.0%(m/m) solution? 2. Calculate the volume percent of solute in each of the following solutions. a. 20.0 mL of methyl alcohol in enough water to give 475 mL of solution b. 4.00 ml of bromine in enough carbon tetrachloride to give 87.0 mL of solution 3. For each of the following solutions, how many milliliters of water should be added to yield a solution that has a concentration of 0.100 M? a. 50.0 ml of 3.00M Nacl b. 2.00 mL of 1.00 M NaCI c. 1.45 L of 6.00 M Nacl

1. How many grams of water must be added to 10.0 g of Ca(NO3)2 in order to prepare a 12.0%(m/m) solution? 2. Calculate the volume percent of solute in each of the following solutions. a. 20.0 mL of methyl alcohol in enough water to give 475 mL of solution b. 4.00 ml of bromine in enough carbon tetrachloride to give 87.0 mL of solution 3. For each of the following solutions, how many milliliters of water should be added to yield a solution that has a concentration of 0.100 M? a. 50.0 ml of 3.00M Nacl b. 2.00 mL of 1.00 M NaCI c. 1.45 L of 6.00 M Nacl

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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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

100%

1. How many grams of water must be added to 10.0 g of Ca(NO3)2 in order to prepare a
12.0%(m/m) solution?
2. Calculate the volume percent of solute in each of the following solutions. a. 20.0 mL of methyl
alcohol in enough water to give 475 mL of solution b. 4.00 ml of bromine in enough carbon
tetrachloride to give 87.0 mL of solution
3. For each of the following solutions, how many milliliters of water should be added to yield a
solution that has a concentration of 0.100 M?
a. 50.0 ml of 3.00M Nacl
b. 2.00 mL of 1.00 M NacI
c. 1.45 L of 6.00 M NacI
d. 75.0 mL of 0.110 M Nacl
4. Lead is a toxic substance. The "normal" lead content in human blood is about 0.40 part
per million (that is, 0.40 g of lead per million grams of blood). A value of 0.80 part per
million (ppm) is considered to be dangerous. How many grams of lead are contained in
6.0x10' g of blood (the amount in an average adult) if the lead content is 0.62 ppm?
5. Calculate the molarity of each of the following solutions:
(a) 29.0 g of ethanol (C,H,OH) in 545 ml of solution,
(b) 15.4 g of sucrose (C„H„01) in 74.0 mL of solution,
(c) 9.00 g of sodium chloride (NacI) in 86.4 mL of solution.

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