A solution contains 20g of solute in 180g of solvent. If ...
A solution contains 20g of solute in 180g of solvent. If the solvent is water, what is the concentration of the solution in terms of mass by mass percentage
11.%
22.2%
10%
20%
Correct answer is C
Mass of Solution = Mass of Solute + Mass of Solvent → 20g + 180g
: Mass of Solution = 200g
Mass Percent = \(\frac{Mass of Solute}{Mass of Solution} * 100%\)
Mass percent = \(\frac{20}{200} * 100%\)
Mass percent = 10%
The force of attraction between covalent molecules is? ...
The hydrolysis of NH\(_4\)CI gives...
In which of the following are water molecules in the most disorderly arrangement? ...
what is the pH of 0.00lmoldm3 solution of sodium hydroxide...
Methylethanoate reacts with ammonia to yield? ...
How much sodium hydroxide is required to make 250 cm3 of 0.1 molar solution? Na=23; 0=16; H=1] ...