Which sample of HCl(aq) contains the greatest number of moles of solute particles?
(1) 1.0 L of 2.0 M HCl(aq)
(2) 2.0 L of 2.0 M HCl(aq)
(3) 3.0 L of 0.50 M HCl(aq)
(4) 4.0 L of 0.50 M HCl(aq)
The answer is (2) 2.0 L of 2.0 M HCl (aq). The number of moles of solute particles equals to the volume multiply the concentration of the solution. After the calculation, you can get the right answer.
