how would you prepare 1L of a .5M solution of each of the following?

Sodium carbonate from the pure solid

1 answer

L x M = moles
You have L and M, solve for moles.

Then
moles = grams/molar mass
You have moles and molar mass, solve for grams.

This is used sometimes as a trick question; the procedure is to weigh out the mass (grams) needed, place in a 1 L volumetric flask, and make to a final volume of 1 L and NOT add 1 L of water