Calculate the mass percent concentration of a solution made by dissolving 5.00g of NaCl in 25.0g of water?
I got 5.00g/25.0g=0.2 x 100= 20%
Is this right?????
You are correct.
Thank you so much, i really appreciate it!
the percent by mass of the Koop aid of you have 1000 god a 2.0 M solution
Yes, your calculation is correct! The mass percent concentration of a solution is calculated by dividing the mass of the solute by the total mass of the solution (including both the solute and the solvent), and then multiplying by 100 to express it as a percentage.
In this case, you dissolved 5.00g of NaCl (the solute) in 25.0g of water (the solvent).
So, the mass percent concentration of NaCl in the solution is:
(5.00g NaCl / (5.00g NaCl + 25.0g Water)) x 100 = (5.00g / 30.0g) x 100 = 0.1667 x 100 = 16.67%
Therefore, the mass percent concentration of the solution is approximately 16.67%.
Great job on your calculation!