# Chemistry

What is the mole fraction sodium acetate of a solution made by adding 0.145 g of sodium acetate to 119 ml water?

1. 0
2. 0
3. 20
1. mol NaAc = grams/molar mass
mol H2O = grams/molar mass. I would assume grams = 119 g.
XNaAc = mols NaAc/total mols.

1. 0
2. 0
posted by DrBob222

## Similar Questions

1. ### school

What is the pH of 0.1 M formic acid solution? Ka=1.7„e10-4? What is the pH value of buffer prepared by adding 60 ml of 0.1 M CH3COOH to 40 ml of a solution of 0.1 M CH3COONa? What is the pH value of an acetate buffer (pK=4.76)

asked by alshammari on December 11, 2011
2. ### Chemistry Class

What is the molality of a solution made by adding 0.145 g of sodium acetate to 119 ml water? How do I find molality?

asked by Trina on November 2, 2012
3. ### chemistry

What is the pH of a sodium acetate solution prepared by adding 0.820g of sodium acetate to 100.0mL of water at 25 degrees?

asked by Natalie on March 29, 2011
4. ### biochemistry

Calculate the pH of the resultant solution of mixing together two solutions of 2 L of 1.0 M acetic acid, 0.5 L of 1.0 M sodium acetate and then adding 8 g of solid NaOH (MW = 40.0 g/mole).

asked by Dre on January 17, 2013
5. ### chemistry

You have made a buffer solution where you added 9 mL 1M Acetic Acid and 0.82 grams Sodium Acetate and diluted it with deionized water to 100 mL. If the Ka for Acetic Acid is 1.76*10-5 and the molecular weight of Sodium Acetate is

asked by Anonymous on July 21, 2017
6. ### chem

A solution is made by dissolving 27.8 g of nicotine (Molar Mass = 160 g/mol) in 145 g of cyclohexane (C6H12) to form 142 mL of solution. Calculate the mole fraction of the solute and the molarity, respectively, of this solution.

asked by volek on February 20, 2015
7. ### Biochem

You have prepared a 400 mL of a .210 M acetate buffer solution with a pH of 4.44. 1. Determine the concentration of both the acetate and acetic acid in the solution. 2. If you made this solution using solid sodium acetate (MW =

asked by Ross on September 24, 2013
8. ### Mole fractions in a liquid mixture:

Acetone, C3H6O, and ethyl acetate, C4H8O2, are organic liquids often used as solvents. At 30 degrees C, the vapor pressure of acetone is 285 mm Hg and the vapor pressure of ethyl acetate is 118mm Hg. the solution is prepared at 30

asked by Sar on September 2, 2010
9. ### Chemistry

Calculate pH of an acetate buffer containing 27.5 mM acetic acid (pKa is 4.74) and 50 mM sodium acetate. When a 30 mM aq solution of sodium acetate was prepared in the lab it had a pH of 8.8. Calculate the amount of acetic acid

asked by Sarah on April 12, 2014
10. ### chemistry

1. Calculate pH of an acetate buffer containing 27.5 mM acetic acid (pKa is 4.74) and 50 mM sodium acetate. When a 30 mM aq solution of sodium acetate was prepared in the lab it had a pH of 8.8. Calculate the amount of acetic acid

asked by Nick on April 12, 2014

More Similar Questions