
(a)
Interpretation:
The mole fraction of glucose in 0.944 M solution needs to be determined if the density of the aqueous solution is 1.0624 g/mL at 20°C.
Concept introduction:
Solution stoichiometry involves the calculation of the concentration of solutions in the given conditions of volumes, moles, etc. There are various ways to calculate the concentration of solutions such as molarity, molality, mole fraction, ppm, ppb, etc. Mole fraction is the ratio of moles of substance and total moles in the solution or mixture. One ppm stands for part per million or milligrams per liter (mg/L) whereas parts per billion (ppb) is one part in 1 billion.
Molarity represents the moles of solute dissolve in per liter of solution. The mathematical expression of molarity is:
Mole fraction of any component in a solution can be calculated as:
(b)
Interpretation:
Themass percentage of glucose in 0.944 M solution needs to be determined if the density of the aqueous solution is 1.0624 g/mL at 20°C.
Concept introduction:
Solution stoichiometry involves the calculation of the concentration of solutions in the given conditions of volumes, moles, etc. There are various ways to calculate the concentration of solutions such as molarity, molality, mole fraction, ppm, ppb, etc. Mole fraction is the ratio of moles of substance and total moles in the solution or mixture. One ppm stands for part per million or milligrams per liter (mg/L) whereas parts per billion (ppb) is one part in 1 billion.
Molarity represents the moles of solute dissolve in per liter of solution. The mathematical expression of molarity is:
Mole fraction of any component in a solution can be calculated as:
(c)
Interpretation:
Themolality of glucose in 0.944 M solution needs to be determined if the density of the aqueous solution is 1.0624 g/mL at 20°C.
Concept introduction:
Solution stoichiometry involves the calculation of the concentration of solutions in the given conditions of volumes, moles, etc. There are various ways to calculate the concentration of solutions such as molarity, molality, mole fraction, ppm, ppb, etc. Mole fraction is the ratio of moles of substance and total moles in the solution or mixture. One ppm stands for part per million or milligrams per liter (mg/L) whereas parts per billion (ppb) is one part in 1 billion.
Molality represents the moles of solute dissolve in per kg of solvent. The mathematical expression of molality is:
Mole fraction of any component in a solution can be calculated as:

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