Wednesday, February 3, 2010

Best Degreaser For Household Use What Is The Molarity Of The Resulting Solution Assuming That All Of The Solute Dissolves?

What is the molarity of the resulting solution assuming that all of the solute dissolves? - best degreaser for household use

Trisodium phosphate is sold without a prescription Na3PO4 for use in homes as a cleaner and degreaser.

You make a trisodium phosphate solution by mixing 243 g Na3PO4 in 2.00 liters of water in a beaker. What is the molarity of the solution on the basis of the assumption that all solutions will be dissolved? Please explain

1 comments:

eugenics... said...

M. Na 3PO4 = 3 (23) + 31 + 4 (16) = 148 g
This means that 1 mole weight Na3PO4 148g
243g is 1.642 mol.

1.642mol is dissolved in 2L of water
0.821 mol dissolved in 1 liter of water, so that a molar 0.821M.

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