Question

if 100 ml 30% NAOH is added with 100 ml of 90%NAOH, so the molarity of the solution is.....??? ​

Answer 1

Answer:Resultant molarity of solution={M1V1+M2V2}÷Vresulant

30%Naoh means 30g of naoh in 100ml of solution

90%Naoh means 90g of naoh in 100ml of soln

Explanation:

M1=30÷40×1000÷100=300/40=7.5M

M2=90/40×1000/100=900/40=22.5M

{7.5×100+22.5×100}÷200=3000/200=15M

Thank you,,I hope you understand well