Question

4 gram of caustic soda dissolved in 200 ml of solution then find molarity

Answer 1

Answer:

caustic soda is NaOH...

molar mass= 40g/ mol

given mass= 4g

no of mol= 4/40= 0.1

vol of sol= 200ml= 0.2 lit

molarity= mol/vol (lit)

=0.1/0.2

=0.5 M