24.50g of Na react with H2O to make sodium hydroxide and H2 gas. How much sodium hydroxide is made if there is an excess of water?

Answer 1

First calculate the number of mols of Na:

24.50g / 23.0 g/mol = 1.065 mols

Since you have excess water, all the Na will form NaOH. So mols of NaOH = 1.065.

Multiply by MW of NaOH:

1.065 *40g/mol =42.6g NaOH.

Make sure to round as per the guidelines given in your course.