Question

What is the molarity of a solution that contains 125 g NaCl in 4.00 L solution?

0.535 M
2.14 M
8.56 M
31.3 M

Answer 1

molarity is number of moles per litre. 125 gram of nacl = 125divided by 58.5, which gives 2.13675. this is in 4l. so in 1 litre,it is 0.535. answer

Answer 2

thanks!