What is the concentration of a solution formed by dissolving 10.0g of ammonium acetate in enough water to form 150.0mL of solution?

Could someone please explain and show me how to do this? I have the answer= .865M
But I am not sure exactly how?!

1 answer

What's the definition?
M = mols/L solution.
How many mols do you have? 10.0/molar mass NH4C2H3O2 = ?
How many L do you have? 0.150

Done?