10g of Sodium Chloride are dissolved in 200ml of H2O. What is the mass percentage of solute in
this solution?
assuming the density of water 1000gr/L calculate mass of water and add 5.85gr
then %=mass of solute/mas of solution x 100
2•3%
Mr(NaO)=23+16=39g.mol
C=m\mv
10g\39times0.2dm^3
=1.28mol.dm^3
I was just calculating the concentration of NaO in water
To find the mass percentage of solute in the solution, you need to know the mass of the solute (sodium chloride) and the total mass of the solution.
Given:
Mass of sodium chloride (solute) = 10g
Volume of water (solvent) = 200ml
Step 1: Convert the volume of water to grams.
Since the density of water is 1g/ml, the mass of water is equal to its volume. Therefore, the mass of water is also 200g.
Step 2: Calculate the total mass of the solution.
Total mass of solution = mass of solute + mass of solvent
Total mass of solution = 10g + 200g
Total mass of solution = 210g
Step 3: Calculate the mass percentage of the solute.
Mass percentage of solute = (mass of solute / total mass of solution) * 100
Mass percentage of solute = (10g / 210g) * 100
Mass percentage of solute = 4.76%
Therefore, the mass percentage of the solute (sodium chloride) in this solution is approximately 4.76%.