A solution contains 20 g of solute in 180 g of solvent. If the solvent is water, what is the concentration of the solution in terms of mass percentage ?
11·1%
22·2%
10%
20%
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CDS-1 – 2021
– Mass of solvent = 180 g
– Mass of solution = Mass of solute + Mass of solvent = 20 g + 180 g = 200 g
– Mass percentage = (20 g / 200 g) × 100% = (1/10) × 100% = 10%.
– Other concentration units include molarity, molality, volume percentage, etc.