Answer :
1M is the molarity of a solution that contains 17 g of NH3 in 0.50 L of solution. Molarity may also be referred to as the concentration of a substance, molar concentration, or quantitative concentration.
It measures the amount of a chemical, specifically a solute, in a solution. It is the material per unit volume of solution in terms of quantity. The number of moles per liter is the most commonly used unit for the term molarity in chemistry. One molar solution is defined as a solution with a concentration of 1 mol/L. It is often referred to as 1 M.
Molarity (M) is calculated as follows: n = number of moles of solute/in (L)
Number of moles of solute = mass of solute (g)/molar mass (g/mol)
n = (17 g/34 g/mol)
M = 0.5 mol/0.50 l
M=1 mol/l,
where n = 1/2 = 0.5 mol
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