Question

Concentration Questions!

1) if you weighed 320g of NaoH and qs to 2,500 mL with water, what is the normality??

answer: 3.2 N

2) How much 2M H2SO4 can be made from 12 mL of 36 M H2SO4

answer: 432 mL of 2N H2SO4

3) How will you make 3 L of 4 N NaOH from 12 N NaOH

answer: Take 1 L of 12 N NaOH and dilute to 3L. .....(How do you get this answer? How come it is "1L" and not "2L" of 12 N NaOH?)

How do I get the correct answers?? what is qs?? Our teacher has not gone over these kind of problems with us! Please help show the steps to the correct answers! Please and thank you