The solution is 75% H 2 PO 4 by mass. The density of solution is 1.57 g/mL. The molarity of H 2 PO 4 in the solution needs to be determined. Concept introduction: Mass percent of any species in the solution can be calculated from its mass and mass of the solution. For example, if mass of the species is x and that of solution is y, the mass percent of the solution can be calculated as follows: % m = x g y g × 100 % The molarity of solution is defined as number of moles of solute in 1 L of the solution. M = n V ( L ) The density of the solution is related to mass and volume of solution as follows: d = m solution V solution The number of moles of substance can be calculated from mass and molar mass as follows: n = m M Here, m is mass and M is molar mass.
The solution is 75% H 2 PO 4 by mass. The density of solution is 1.57 g/mL. The molarity of H 2 PO 4 in the solution needs to be determined. Concept introduction: Mass percent of any species in the solution can be calculated from its mass and mass of the solution. For example, if mass of the species is x and that of solution is y, the mass percent of the solution can be calculated as follows: % m = x g y g × 100 % The molarity of solution is defined as number of moles of solute in 1 L of the solution. M = n V ( L ) The density of the solution is related to mass and volume of solution as follows: d = m solution V solution The number of moles of substance can be calculated from mass and molar mass as follows: n = m M Here, m is mass and M is molar mass.
Solution Summary: The author explains that the density of solution is 1.57 g/mL, and the molarity of the solution can be determined.
The solution is 75% H2PO4 by mass. The density of solution is 1.57 g/mL. The molarity of H2PO4 in the solution needs to be determined.
Concept introduction:
Mass percent of any species in the solution can be calculated from its mass and mass of the solution. For example, if mass of the species is x and that of solution is y, the mass percent of the solution can be calculated as follows:
%m=x gy g×100%
The molarity of solution is defined as number of moles of solute in 1 L of the solution.
M=nV(L)
The density of the solution is related to mass and volume of solution as follows:
d=msolutionVsolution
The number of moles of substance can be calculated from mass and molar mass as follows:
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell