Question

A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4

, for a laboratory experiment. How many grams of Na3PO4
will be needed to produce 325 mL
of a solution that has a concentration of Na+
ions of 0.600 M
?

Answer 1

Answer:74.1234

Step-by-step explanation:

Na3PO4: molar mass is 380.12g/mol

0.600M = 0.600mol/L

0.600mol/L * 0.325L=0.195mol

You need 0.195mol of Tribasic Sodium Phosphate in that 325mL solution for it to be 0.600 M

0.195mol*380.12g/mol=74.1234g