Question

Calculate the molarity of solution 5g of naoh in 450 ml solution

Answer 1

Answer:

Molarity(M)=Mass ofNaOH/Molar mass ofNaOHVolume of solution in Littres

Mass of NaOH =5g,Molar mass of NaOH=40gmol−1,

Volume os solution=450mL−5401000=0.45L

Molarity (M)=5g/(40gmol−1)(0.45L)=0.278mol−1=0.278M