Question

In: Chemistry

Define mole fraction, weight by weight (w/w) and parts per million as ways of expressing solution concentrations?

Define mole fraction, weight by weight (w/w) and parts per million as ways of expressing solution concentrations?

Solutions

Expert Solution

Ans:

Mole fraction, weight by weight (w/w) and parts per million as ways of expressing solution concentrations:

Mole fraction is the ratio of moles of a particular component to the total number of moles of solute and solvant. It is denoted by x.

Weight by weight (w/w) is solute mass per hundred grams of solution.

Parts per million (ppm) is amount of solute in one million parts of solution.


Mole fractionweight by weight (w/w) and parts per million are other ways of expressing  concentration of solutions

Related Solutions

10% (w/w) of NACl is given. Density of solution is 1.071 gm per L. Calculate molality, molarity and mole fraction?
10% (w/w) of NACl is given. Density of solution is 1.071 gm per L. Calculate molality, molarity and mole fraction?
Determine the composition in mole fraction of the following gas. Component Composition Weight Fraction Molecular Weight...
Determine the composition in mole fraction of the following gas. Component Composition Weight Fraction Molecular Weight Mole Fraction Methane 0.880 16.04 ? Ethane 0.043 30.07 ? Propane 0.042 44.10 ? n-Butane 0.035 58.12 ?
Which of the following units is useful in relating concentration of solution with its vapour pressure? (a) Mole fraction (b) Parts per million (c) Mass percentage (d) Molality.
Which of the following units is useful in relating concentration of solution with its vapour pressure? (a) Mole fraction (b) Parts per million (c) Mass percentage (d) Molality
The mole fraction of glucose in an aqueous solution is 0.015. The density of the solution...
The mole fraction of glucose in an aqueous solution is 0.015. The density of the solution is 1.05 g/mL. Calculate the molarity and molality of the solution.
Percent by mass to parts per million. Convert 4.45% NaOH(aq) solution to parts per million NaOH...
Percent by mass to parts per million. Convert 4.45% NaOH(aq) solution to parts per million NaOH in the solution. Do NOT assume a dilute aqueous solution! Use the molar mass of the entire salt formula, not either ion alone. The solution density is 1.047 g/mL. Answer to 3 significant figures with appropriate units.
What is the mole fraction of water in a solution containing water and ethanol that is...
What is the mole fraction of water in a solution containing water and ethanol that is 470% water by mass?
Express HCL 28 percent by weight ( 28% w?w) in terms of mole percent ( mol%....
Express HCL 28 percent by weight ( 28% w?w) in terms of mole percent ( mol%. Atomic weight chlorine ( C ) : 35.45g/mol The approximation the molar composition of air is 21% oxygen and the balance is nitrogen Calculate the approximate composition of air by mass Calculate the average molecular weight of air
The mole fraction of potassium phosphate, K3PO4, in an aqueous solution is 8.11x10-2
The mole fraction of potassium phosphate, K3PO4, in an aqueous solution is 8.11x10-2 The percent by mass of potassium phosphate in the solution is _______ %. The mole fraction of ammonium sulfide, (NH4)2S, in an aqueous solution is 3.42x10-2 The percent by mass of ammonium sulfide in the solution is _______ %.
The mole fraction of an aqueous solution of magnesium sulfite is 0.29. Calculate the molarity (in...
The mole fraction of an aqueous solution of magnesium sulfite is 0.29. Calculate the molarity (in mol/L) of the magnesium sulfite solution, if the density of the solution is 1.38 g mL-1. Determine the mole fraction of magnesium bromide in a 5.51 M aqueous solution of magnesium bromide. The density of the solution is 1.17 g mL-1.
What is the mole fraction of ethanol in a solution made by dissolving 29.2 g of...
What is the mole fraction of ethanol in a solution made by dissolving 29.2 g of ethanol, C2H5OH, in 53.6 g of water? 0.176 0.213 0.545 0.352
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT