Calculate each of the following quantities:(a) Grams of

Chapter 3, Problem 68P

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QUESTION: Problem 68P

Calculate each of the following quantities:

(a) Grams of solute in 185.8 mL of 0.267 Mcalcium acetate

(b) Molarity of 500. mL of solution containing 21.1 g of potassium iodide

(c) Moles of solute in 145.6 L of 0.850 M sodium cyanide

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QUESTION: Problem 68P

Calculate each of the following quantities:

(a) Grams of solute in 185.8 mL of 0.267 Mcalcium acetate

(b) Molarity of 500. mL of solution containing 21.1 g of potassium iodide

(c) Moles of solute in 145.6 L of 0.850 M sodium cyanide

ANSWER:

Step 1 of 5

(a)

Given data:

The volume of sodium acetate solution: 185.8 mL = 0.185 L.

The molarity of sodium acetate: 0.267 M

To calculate: Mass of solute

The number of moles of solute can be calculated by using the following formula:

 

Where,

n = number of moles of solute

c = concentration of the solution

v = volume of the solution

By plugging the values in equation 1, we get:

The molar mass of sodium acetate = 82.034 g/mol

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