Question

Calculate the number of moles and the mass of the solute in each of the following solutions:

a) 0.025 mol, 1.25 g
b) 0.050 mol, 2.50 g
c) 0.075 mol, 3.75 g
d) 0.100 mol, 5.00 g

Answer 1

To calculate the number of moles in a solution, divide the given amount of solute by the molar mass of the solute. To calculate the mass of the solute, multiply the number of moles by the molar mass of the solute.

Step-by-step explanation:

To calculate the number of moles in a solution, divide the given amount of solute by the molar mass of the solute. To calculate the mass of the solute, multiply the number of moles by the molar mass of the solute.

For example:

a) 0.025 mol of solute:

1. Number of moles = 0.025 mol
2. Mass of the solute = 0.025 mol * molar mass of the solute

b) 1.25 g of solute:

1. Number of moles = 1.25 g / molar mass of the solute
2. Mass of the solute = 1.25 g

Repeat the above steps for the remaining solutions provided in the question.