Chemistry Ch. 9 Homework

A doctor orders 240. mL of 3 % (m/v) ibuprofen. If you have 8.0 % (m/v) ibuprofen on hand, how many milliliters do you need?

V = 90. mL

a mixture that cannot be separated by a semipermeable membrane

characteristic of a solution

a mixture that settles out upon standing

characteristic of a suspension

5% (m/v) glucose

diagram 1

Select the diagram (1, 2, or 3) that represents the solution formed by a solute that is a nonelectrolyte, weak electrolyte, strong electrolyte? weak electrolyte

diagram 1

Select the diagram that represents the shape of a red blood cell when placed in each of the following solutions 0.9 % (m/v) NaCl

diagram 1

Solution in A 1 % (m/v) starch, solution in B 1 % (m/v) starch.

diagram 1

weak electrolyte

diagram 1

0.01% (m/v) NaCl

diagram 2

1 % (m/v) glucose

diagram 2

Select the diagram (1, 2, or 3) that represents the solution formed by a solute that is a nonelectrolyte, weak electrolyte, strong electrolyte? strong electrolyte

diagram 2

Solution in A 0.1 % (m/v) sucrose, solution in B 1 % (m/v) sucrose

diagram 2

Solution in A 2 % (m/v) starch, solution in B 8 % (m/v) starch.

diagram 2

strong electrolyte

diagram 2

10% (m/v) glucose

diagram 3

Select the diagram (1, 2, or 3) that represents the solution formed by a solute that is a nonelectrolyte, weak electrolyte, strong electrolyte?

diagram 3

Select the diagram (1, 2, or 3) that represents the solution formed by a solute that is a nonelectrolyte, weak electrolyte, strong electrolyte? nonelectrolyte

diagram 3

Solution in A 5 % (m/v) sucrose, solution in B 1 % (m/v) sucrose.

diagram 3

Indicate whether each of the following ionic compounds is soluble in water: CuCO3

insoluble

Mg3(PO4)2

insoluble

Pb(OH)2

insoluble

C6H12O6(s)⟶ H2OC6H12O6(aq)

nonelectrolyte

(NH4)2SO4

soluble

NaHCO3

soluble

Indicate the compartment that will increase in volume for the following pairs of solutions separated by a semipermeable membrane:

10 %% (m/v) starch

Indicate the compartment that will increase in volume for the following pairs of solutions separated by a semipermeable membrane:

10 %% (m/v) sucrose

39 g of sucrose in 340 mL of a carbonated drink

11%

39 gg of sucrose in 360 mL of a carbonated drink

11%

How many grams of mannitol does the patient receive in 5.0 hours?

120 g

How many liters of a 4.0% (m/v) glucose solution would you need to obtain 90 g of glucose?

2.3 L

Calculate the mass/volume percent, % (m/v) for the solute in each of the following solutions. 63 g of Na2SO4 in 300 mL of Na2SO4 solution

21 %

A patient receives 100 mL of 24% (m/v) mannitol solution every hour. How many grams of mannitol are given in 1 hour?

24 g

Calculate the mass/volume percent, % (m/v) for the solute in each of the following solutions. 75 g of Na2SO4 in 255 mL of Na2SO4 solution

29%

An 80 proof brandy is 40.0 % (v/v) ethyl alcohol. The "proof" is twice the percent concentration of alcohol in the beverage. How many milliliters of alcohol are present in 730 mL of brandy?

290 mL

An 80 proof brandy is 40.0 % (v/v) ethyl alcohol. The "proof" is twice the percent concentration of alcohol in the beverage. How many milliliters of alcohol are present in 790 mL of brandy?

320 mL Explanation: (790*40)/100=316 (round up to 320)

Calculate the mass percent (m/m) of a solution containing 40 g of K2CO3 and 726 g of H2O.

5.2%

Indicate the compartment that will increase in volume for the following pairs of solutions separated by a semipermeable membrane:

8 %% (m/v) albumin

How many liters of a 3.0% (m/vm/v) glucose solution would you need to obtain 55 gg of glucose?

1.8 L

Classify each solute represented in the following equations as a strong, weak, or nonelectrolyte: K2SO4(s)⟶ H2O2K+(aq)+SO42−(aq)

Strong electrolyte

NH3(g)+H2O(l)⇌ H2ONH4+(aq)+OH−(aq)

Weak electrolyte