calculate the molarity of sodium carbonate in a solution prepared by dissolving 5.3g in enough water to form 250ml of solution

3 answers

how many moles in 5.3g?

Molarity is moles/liter
Not given
You're not willing to do ANY of this work? I've posted a hint at your duplicate post above. You're right, mols are given BUT you know grams and you can calculate mols.