What is the molarity of 0.50 liter of an aqueous solution that contains 0.20 mole of NaOH (gram-formula mass = 40. g/mol)?

0.4mol/L

Explanation:

Data obtained from the question include:

Number of mole of NaOH(solute) = 0.20 mole

Volume of solution = 0.50 L

Molarity =.?

Molarity is simply mole of solute per unit litre of a solution. This can represented mathematically as:

Molarity = mole of solute /Volume of solution

Molarity of NaOH = 0.2mol/0.5L

Molarity of NaOH = 0.4mol/L

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

hope it

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation: