What information will you be given in this experiment that will allow you to calculate the moles of hydroxide produced by dissolving calcium hydroxide in water? 1. Milligrams of Ca 2. Molar mass of hydroxide 3. Initial Volume of HCl 4. Molar mass of HCl 5. Final Volume of HCl 6. Molarity of HCl

The information necessary would be Nos. 1 (milligrams of Ca), 2 (molar mass of hydroxide) and 4 (molar mass of Calcium)

Explanation:

The calculation of the moles of hydroxide would be the usual stoichiometric calculations, where all that is required is the mass and molar mass of reactants and products, depending on the variable in question. Hence, volume and molarity are not necessarily required to determine amount of product.

The information necessary would be Nos. 1 (milligrams of Ca), 2 (molar mass of hydroxide) and 4 (molar mass of Calcium)

The reaction equation is:

→ +

N.B. Calcium hydroxide only slightly dissolves in water to form as lightly basic solution; the solubility is increased by increase in temperature.

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