What is the normality of a solution that contains 1.89g of h2c2o2 2h2oin 1---ml of solution?

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Wrigley

Chemistry

11 March, 00:11

What is the normality of a solution that contains 1.89g of h2c2o2 2h2oin 1---ml of solution?

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Lorenzo Conner · Answer 1

First convert mass to number of moles. Molar mass of H2C2O2 • 2H2O = 94 / mol

1.89g / (94 g / mol) =.02 mol H2C2O2 • 2H2O

Then we divide by 0.1 L, or 100 mL, and we get a concentration of 0.2 M.

Since there are two positive ions (2 H+), therefore normality is:

0.4 N