dilution problems(help mee~~)?

Question

HINT: calculate the total moles present and the total volume the molecules are dissolving in




calculate the final concentration if 2.00 L of 3.00 M NaCl and 4.00L of 1.50 M NaCl are mixed. assume there is no volume contraction upon mixing

(help me w/ this plzzzz T_T)

Answer 1

Total moles NaCl = 6 + 6

Total volume = 2 + 4.

Now use the hint!