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Living by Chemistry

Angelica M. Stacy

Chapter 15

Toxins in Solution - all with Video Answers

Educators

Section 1

Solution Concentration

04:23

Problem 1

What does it mean that a solution is “uniform throughout”?

Vishal Sharma
Vishal Sharma
Numerade Educator
03:28

Problem 2

What is the difference between the concentration of a solution and the volume of a solution?

Vishal Sharma
Vishal Sharma
Numerade Educator
05:01

Problem 3

Find at least three solutions at home. Identify the solute and the solvent for each.

Vishal Sharma
Vishal Sharma
Numerade Educator
03:48

Problem 4

Find at least three mixtures at home that are not solutions. Identify the substances in each mixture.

Vishal Sharma
Vishal Sharma
Numerade Educator
02:20

Problem 5

Place these salt solutions, NaCl(aq), in order of increasing molarity.
a. 4.0 mol per 8.0 L
b. 6.0 mol per 6.0 L
c. 1.0 mol per 10 L

Joshua Klint
Joshua Klint
Numerade Educator
03:48

Problem 6

Determine the molarity for each of these salt solutions, NaCl(aq). h en list the solutions in order of increasing molarity.
a. 29.2 g per 0.50 L
b. 5.8 g per 50 mL
c. 2.9 g in 10.2 mL

Vishal Sharma
Vishal Sharma
Numerade Educator
05:42

Problem 7

Determine the molarity for each of these solutions. h en list the solutions in order of increasing molarity.
a. 25 $\mathrm{g} \mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}$ per 0.25 $\mathrm{L}$.
b. 50 $\mathrm{g} \mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}$ per 0.25 $\mathrm{L}$
c. 50 $\mathrm{g} \mathrm{C}_{\mathrm{l}_{12}} \mathrm{H}_{22} \mathrm{O}_{11}$ per 0.25 $\mathrm{L}$

Vishal Sharma
Vishal Sharma
Numerade Educator
06:57

Problem 8

Which of the substances listed here represent a heterogeneous mixture? Choose all that apply.
$\begin{array}{ll}{\text { (A) the air in your classroom }} & {\text { (B) beef stew }} \\ {\text { (C) mouthwash }} & {\text { (D) chocolate pudding }}\end{array}$

Vishal Sharma
Vishal Sharma
Numerade Educator
02:41

Problem 9

How can you increase the molarity of a solution?
$\begin{array}{ll}{\text { (A) Add solute. }} & {\text { (B) Add solvent. }} \\ {\text { (C) Pour out some of the solution. }} & {\text { (D) All of the above. }}\end{array}$

Vishal Sharma
Vishal Sharma
Numerade Educator
01:31

Problem 10

When expressing molarity, M stands for
$\begin{array}{ll}{\text { (A) atoms per liter of water. }} & {\text { (B) moles per milliliter of solvent. }} \\ {\text { (C) moles per liter of solution. }} & {\text { (D) atoms per milliliter of solute. }}\\{\text { (E) grams per liter of solution. }} \end{array}$

Vishal Sharma
Vishal Sharma
Numerade Educator