Question
In: Chemistry
The molar concentration of a 20.0% 9m/m) solution of aqueous ammonia (NH3) is 10.51 M. What...
The molar concentration of a 20.0% 9m/m) solution of aqueous
ammonia (NH3) is 10.51 M. What is the density of this solution
?
Solutions
Expert Solution
Molar concentration of aqueous ammonia solution = 10.51 M
Moles of
ammonia in 1 L solution = 10.51
Molar mass of ammonia = 17.031 g/mol
Mass of ammonia = 17.031 * 10.51
= 178.99 g
Mass % of solution = 20%
20 g NH3 is
present in 100 g solution.
So, 178.99 g ammonia will be present in = 100/20 * 178.99
= 894.95 g solution
Mass of solution = 894.95 g
Volume of solution = 1 L = 1000 mL
Density of solution = Mass / Volume
= 894.95 / 1000
Density of solution = 0.895 g/mL
queen_honey_blossom answered 2 years agoRelated Solutions
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