Question

How many moles of KCl would be dissolved in 4 L of water to make a 2 M solution?

Answer 1

the correct answer is eight moles :))

Answer 2

Answer:
Moles = 8 moles

Solution:
Molarity is given as,

Molarity = Moles / Volume of Solution ------ (1)

Data Given;
Molarity = 2 M

Volume = 4 L

Solving eq.1 for Moles,

Moles = Molarity × Volume of Solution

Putting values,

Moles = 2 mol.L⁻¹ × 4 L

Moles = 8 moles