What is the volume (in mL) of a 2.00 M solution that contains 10.0 gram of KCl?


Answer :

Answer:

0.067L

Explanation:

Molarity of a solution, which refers to the molar concentration of that solution can be calculated thus:

Molarity = number of moles (mol) /volume (L)

According to the information given in this question, V = ?, Molarity = 2.00M, mass of KCl = 10grams.

Using mole = mass/molar mass

Molar Mass of KCl = 39 + 35.5

= 74.5g/mol

Mole = 10/74.5

Mole = 0.134mol

Using Molarity = number of moles (mol) /volume (L)

2 = 0.134/V

Cross multiply

V = 0.134/2

V = 0.067L