Calculate the molality and molarity of commercial ammonium hydroxide given the following data:NH3: weight%= 25.00 ;...

Question

Question

Calculate the molality and molarity of commercial ammonium hydroxide given the following data:NH3: weight%= 25.00 ; specific gravity=0.96g/ml

Answer 1

Answer #1

25% NH3 means 25gm of NH3 present in 100gm of water

molality = weight of solute*1000/gram molar mass * weight of solvent in gm

= 25*1000/35*100

= 250/35 = 7.14 m

Molarity = percentage *specific gravity*10/gram molar mass

= 25*0.96*10/35 = 6.65 M

Answer 2

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