# chamistry

posted by .

how do you calculate the mole fraction of HCl in an acqueous solution that contains 33.6% HCl by mass?

• chamistry -

33.6% w/w HCl means 33.6 g HCl/100 g solution which means 33.6 g HCl/(33.6g HCl + 66.4 g H2O).
moles HCl = 33.6/molar mass HCl.
moles H2O = 66.4/molar mass H2O.
XHCl = moles HCl/total moles.
XH2O = moles H2O/total moles.

## Similar Questions

1. ### Chemistry :(

Calculate the molality, % percent composition by weight, and the mole fraction of HCl in an aqueous 12M HCl solution that has a density of 1.20 g?
2. ### Chemistry

A sample of 0.0020 mole of HCl is sissolved in water t omake a 2000ml solution. Calculate the molarity of the HCl solution, the (H30+) and the pH. For a strong acide such as HCl the (h30+) is the same as the molarity of the HCl solution. …
3. ### chemistry2

Hydrochloric acid is sold as a concentrated acqueous solution. If the molarity of HCl is 12.0 and its density is 1.18 g/ml. calculate A) MOLALITY B)THE % BY MASS OF HCl in the solution
4. ### chemistry urg!

Hydrochloric acid is sold as a concentrated acqueous solution. If the molarity of HCl is 12.0 and its density is 1.18 g/ml. calculate A) MOLALITY B)THE % BY MASS OF HCl in the solution
5. ### Chemistry

Hi, Please provide assistance on the following problem. I worked out part of it, but do not know what to do after calculating pH for HCl. Suppose you dissolved 0.0365 grams of HCl in water to give a final volume of 10.0 mL. The molar …
6. ### Chemistry

Household vinegar is acqueous 5.00%,acetic acid solution(by mass),if its density is 1,01 g/ml.calculate the mole fraction!molarity,and molality of the solution.
7. ### chem

a.)How many moles of NaOH are required to prepare 2.00L od 0.380M solution?
8. ### Analytical Chemistry

A 22.617 g sample of aqueous waste leaving a fertilizer manufacturer contains ammonia. The sample is diluted with 70.407 g of water. A 10.883 g aliquot of this solution is then titrated with 0.1072 M HCl. It required 29.32 mL of the …
9. ### chemistry

Calculate mole fraction of HCl in a solution containing 24.8% HCl by mass
10. ### chemistry

calculate kole fraction of hcl in solution of hcl contaning 24.8% of hcl by mass

More Similar Questions