Question

calculate the molarity of a solution containing 4g of NAOH in 500cm cube or ml of solution ​?
can someone give answer step by step ​​

Answer 1

Answer:

0.2 M

Explanation:

Given quantities :

• Volume = 500 ml =0.5 litre
• Moles of NaOH = Given mass/Molecular mass => 4/40= 0.1 moles of NaOH
• NaOH is the solute here
• Molarity = No of moles of solute/Vol of solution
• Volume of Solution should be in litre

Applying the given values in the formula

0.1moles / 0.5 litres = 0.2 M

Therefore molarity of the given solution is 0.2 M