Question

Please help thank you!!!!

Answer 1

0.4 mol

Step-by-step explanation:

We will use the formula:

n = cv

n is the number of moles, c is the concentration/molarity, v is the volume in LITRES.

Step 1: convert the volume to Litres. 500 mL is 0.5 Litres

Step 2: apply the formula

n= (0.8)(0.5)

n = 0.4 mol