Asolution containing 292 g of mg(no3)2 per liter has a density off 1.108 g/ml. what is the molarity of the solution?

The molarity of a substance is the number of moles of the substance present per liter. We are given the mass per liter, which is 292 grams. We may convert this into moles by dividing by the molecular mass of magnesium nitrate. This is:

Mg + 2 * NO₃⁻
24 + 2 * (14 + 16*3)

Mr = 148 g/mol

The molarity of the solution is:

M = 292/148 = 1.97 moles / liter

The solution has a molarity of 1.97 M

The number of protons in a nucleus

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