The concentration of a solution expressed in moles per cubic decimeters (mol/dm³ or moldm⁻³) is called?
Molarity.
Molality.
Normality.
Mass concentration.
50 cm³ of 0.1M H2SO4 completely neutralized 25cm³ of NaOH, what is the molarity of the NaOH?
0.1 M.
0.4 M.
0.3 M.
0.2 M.
What volume of solution containing 1.5 g of sodium hydroxide in 250 cm³ of solution will completely neutralize 20 cm³ of 0.12 molar hydrochloric acid?
16 cm³.
20 cm³.
40 cm³.
250 cm³.
