In 24 g of a 7.8% by mass solution of CaSO4? How many grams of solute are present gCaSO4? how many grams of solvent are present g solvent?
7.8% CaSO4 by mass means
7.8 g CaSO4/100 g solution.
So in 24 g of the solution, there must be
7.8 x (24/100) = ?? g CaSO4
24.0 g solution - g CaSO4 = grams solvent.
To find the grams of solute present in 24 g of a 7.8% by mass solution of CaSO4, we can use the equation:
Mass of solute = (percent by mass/100) x mass of solution
Mass of solute = (7.8/100) x 24
Mass of solute = 1.872 g CaSO4
To find the grams of solvent present in the solution, we subtract the mass of the solute from the mass of the solution:
Mass of solvent = Mass of solution - Mass of solute
Mass of solvent = 24 - 1.872
Mass of solvent = 22.128 g solvent
To determine the number of grams of solute and solvent in a given mass of a solution, we need to use the mass percent composition.
Given:
Mass of the solution = 24 g
Percent by mass of CaSO4 (solute) = 7.8%
To find the number of grams of solute (gCaSO4) in the solution, we can use the following calculation:
gCaSO4 = mass of solution * percent by mass of solute
= 24 g * 7.8%
= 24 g * 0.078
= 1.872 g
Therefore, there are approximately 1.872 grams of CaSO4 (solute) in the solution.
To find the number of grams of solvent (g solvent) in the solution, we can subtract the mass of the solute from the mass of the solution:
g solvent = mass of solution - mass of solute
= 24 g - 1.872 g
= 22.128 g
Therefore, there are approximately 22.128 grams of solvent in the solution.