10.0ml of 5.0% NaCl solution. To this you add 5.00ml of a 2.0% NaCl solution. What is the molarity of NaCl in this final mixture?

Question

amistre64 · Answer

dunno what molarity is but the final solution is:

10(.05) + 5(.02) = 15(x)

.5 + .1 = 15x

.6 = 15x

x = .6/15 = 6/150 = 2/50 = 1/25 = .04

x = .04; which is 4%

amistre64 · Answer

whats molarity?  it sounds toothy lol

anonymous · Answer

molarity is moles of solute dissolved per liter, it's been so long since i've looked at lab math I'm completely lost

amistre64 · Answer

well, we get 15mL of a 4% table salt solution...if that helps :)

anonymous · Answer

definitely, i appreciate the assistance

amistre64 · Answer

youre welcome :)