Question

What is the molarity of 200 mL of solution in which 2.0 moles of sodium bromide is dissolved?

2.0 M
10 M
0.40 M
4.0 M

Answer 1

10...because molarity is defined as number of moles per litre. so 2 mole in 200ml,then 10 mole in 1000ml i.e 1 l .so ans to me is 10

Answer 2

thanks!