How to find mass of something when given ml and molarity

Question

Right now we're working with thermodynamics, and i don't know how to find the mass of NH4NO3 when without being given a grams. Ive been told there's 100ml and 1.0 M solution. 

Answer 1

You know the concentration is 1.0 moles/liter and you have a volume of 0.100 L of solution. 

 

(1) Multiply the concentration by the volume to get the number of moles.

 

(2) Find the molecular weight of NH₄NO₃ in grams per mole by the adding the atomic weights of it elements.  Look up the atomic weights in your chemistry book.  You will compute 2N + 4H + 3O.

 

(3) Multiply the molecular weight in grams per mole by the number of moles and get the mass in grams.