Question

How many molecules are in 50 mL of 2 M HCl?

Answer 1

see below

Step-by-step explanation:

Use dimensional analysis

`(50mL)/(1) *(1 L)/(1000 mL) *(2 M)/(1 L) * (6.022 *10^(23) )/(1 mol) = (50*2*6.022 *10^(23))/(1000) = 6.022 *10^(22)`