Maple syrup has a density of 1.325 g/ml, and 100.00 g of maple syrup contains 67 mg of calcium in the form of ca2 + ions. what is the molarity of calcium in maple syrup?

Density of maple syrup = 1.325 g/ml

1000 ml contains 1325 g of maple syrup

In 100 g of maple syrup - 67 mg of Ca ions

Therefore in 1325 g of maple syrup - 67 mg / 100g * 1325 g

= 887.75 mg of Ca

this means in 1000 ml - 887.75 mg of Ca

molar mass of Ca - 40 g/mol

therefore number of moles in 1000 ml - 0.88775 g / 40 g/mol

molarity of Ca - 0.022 mol/dm³