Question

calculate the molarity of solution contains 5g of NaoH in 500ml of solution ​

Answer 1

use the formula molarity =

no. of moles / litres of solution

according to question

* first convert 5 grams of NaOH to moles

i.e - given weight / molecular weight

= 5/40

= 0.125

now put this value in molarity formula

molarity(M)= 0.125/0.5

= 0.25

Hope it helps.....