Question

A 0.420 M Ca(OH)2 solution was prepared by dissolving 64.0 grams of Ca(OH)2 in enough water. What is the total volume of the solution formed? (4 points)
Select one:
a.1.07 liters
b.1.23 liters
c.2.05 liters
d.2.18 liters Incorrect

Answer 1

The volume of the solution is given below which can be calculated using the molarity formula as 2.18 litres.

Define the molarity of a solution.

Molarity (M) is the amount of a substance in a certain volume of solution. Molarity is defined as the moles of a solute per litres of a solution.

$Molality = \frac{Moles \;solute}{Volume \;of \;solution \;in \;litre}$

Given data:

M= 0.420M

mass = 64.0 grams

Molar Mass= 74g/mol

To find:

The volume of solution=?

The calculation for a number of moles:

n= $\frac{m}{M}$

n= $\frac{64}{70}$

n= 0.91 moles

Molarity=  $\frac{n}{V}$

V= $\frac{0.91}{0.420}$

V= 2.1768 litres

Thus, the volume of the solution is 2.18 litres.

Find more information about Molarity here:

brainly.com/question/26873446

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