A solution of caustic soda in water contains 20 % NaOH by weight.The density of the solution is 1196 kg/m^3. Find the molarity,normality and molality of the solution.
Answers
Answered by
0
Answer: pls do follow me and mark me as brainliest
here is your answer
Explanation:
The molality of the solution containg 20% w/w solution of NaOH is: A. 4.5m. B. 6.25m. C. 0.3m. D. 1m. MEDIUM · Share. Study later. Answer. Let x be the mass of solution. Mass of ... Get Instant Solutions, 24x7 ... 2g of NaOH and 4.9g of H2SO4 are mixed and volume is made 1 litre. ... D. Mole fraction, iv) moles/ kg. solvent ...
Answered by
2
Answer:
molality = number of moles /mass of solvent in the solution
Explanation:
mass of NAOH=x*20/100=20x/100
molecular weight of NAOH=(22.9+16+1)=40mol/gram
number of moles=(20x/100)/39.9=(20x/100)/40=x/200
mass of solvent in solutoin=x-20x/100=80x/100
molality=(x/200)/(80x/100)*1000=6.25M
Similar questions