(a)
Interpretation:
The formation of following solutions should be explained:
500.0 mL of a 5.32 % w/w
Concept Introduction:
Concentration has several ways to be calculated. It typically relates an amount of solute and the solution. In mass of solute per unit mass of solvent, or w/w, the total mass of the solute, solvent and solution must be known.
The formula for w/w is as follows:
Here,
When solving for the required amount of solute, the following formula is used:
Answer to Problem 6.34P
Explanation of Solution
Given Information:
The concentration is shown as w/w meaning this is mass of solute per mass of solvent.
Since, density of water is 1 g/mL thus, 500 mL of water contains 500 g of water. Substitute known data and solve for mass of solute.
Thus,
(b)
Interpretation:
The formation of following solutions should be explained:
342.0 mL of a 0.443 % w/w benzene solution in toluene.
Concept Introduction:
Concentration has several ways to be calculated. It typically relates an amount of solute and the solution. In mass of solute per unit mass of solvent, or w/w, the total mass of the solute, solvent and solution must be known.
The formula for w/w is as follows:
Here,
When solving for the required amount of solute, the following formula is used:
(b)
Answer to Problem 6.34P
Explanation of Solution
Given Information:
The concentration is shown as w/w meaning this is mass of solute per mass of solvent.
In this specific case, we do not know which volume or mass each material is, but we do know which one the solvent is, toluene.
Now, get the total volume equation.
Solve simultaneously.
Then, add
(c)
Interpretation:
The formation of following solutions should be explained:
125.5 mL of a 34.2 % w/w dimethyl sulfoxide solution in acetone.
Concept Introduction:
Concentration has several ways to be calculated. It typically relates an amount of solute and the solution. In mass of solute per unit mass of solvent, or w/w, the total mass of the solute, solvent and solution must be known.
The formula for w/w is as follows:
Here,
When solving for the required amount of solute, the following formula is used:
Answer to Problem 6.34P
Explanation of Solution
Given:
In this specific case, we do not know which volume or mass each material is, but we do know which one is the solvent that is acetone.
Now, get the total volume equation.
Solve simultaneously.
Then, add
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Chapter 6 Solutions
INTRO.TO GEN.,ORG.,+BIO.-HYBRID ED PKG.
- 6-38 Describe how we would prepare 250 mL of 0.10 M NaOH from solid NaOH and water.arrow_forward6-40 What is the molarity of each solution? (a) 47 g of KCI dissolved in enough water to give 375 mL of solution (b) 82.6 g of sucrose, C12H22O11, dissolved in enough water to give 725 mL of solution (c) 9.3 g of ammonium sulfate, (NH4)2SO4 dissolved in enough water to give 2.35 L of solutionarrow_forward6-99 A concentrated nitric acid solution contains 35% HNO3. How would we prepare 300. mL of 4.5% solution?arrow_forward
- 6-100 Which will have greater osmotic pressure? (a) A 0.9% w/v NaCI solution (b) A 25% w/v solution of a nondissociating dextran with a molecular weight of 15,000.arrow_forward6-54 An industrial wastewater contains 3.60 ppb cadmium Cd2+. How many mg of Cd2+ could be recovered from a ton (1016 kg) of this wastewater?arrow_forward6-96 We know that a 0.89% saline (NaCI) solution is isotonic with blood. In a real-life emergency, you run out of physiological saline solution and have only KCI as a salt and distilled water. Would it be acceptable to make a 0.89% aqueous KCI solution and use it for intravenous infusion? Explain.arrow_forward
- 6-37 Calculate the w/v percentage of each of these solutes: (a) 623 mg of casein in 15.0 mL of milk (b) 74 mg of vitamin C in 250 mL of orange juice (c) 3.25 g of sucrose in 186 mL of coffeearrow_forward6-25 A small amount of solid is added to a separatory funnel containing layers of diethyl ether and water. After shaking the separatory funnel, in which layer will we find each of the following solids? (a) NaCI (b) Camphor (C10H16O) (c) KOHarrow_forward6-39 Assuming that the appropriate volumetric flasks are available, describe how we would make these solutions: (a) 175 mL of a 1.14 M solution of NH4Br in water (b) 1.35 L of a 0.825 M solution of Nal in water (c) 330 mL of a 0.16 M solution of ethanol, C2H6O, in waterarrow_forward
- 6-15 Answer true or false. (a) A solute is the substance dissolved in a solvent to form a solution. (b) A solvent is the medium in which a solute is dissolved to form a solution. (c) Some solutions can be separated into their components by filtration. (d) Acid rain is a solution.arrow_forward6-91 When a cucumber is put into a saline solution to pickle it, the cucumber shrinks; when a prune is put into the same solution, the prune swells. Explain what happens in each case.arrow_forward6-103 A swimming pool containing 20,000. L of water is chlorinated to have a final CI2 concentration of 0.00500 M. What is the CI2 concentration in ppm? How many kilograms of CI2 were added to the swimming pool to reach this concentration?arrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning