Chemistry

posted by .

How many grams of NaC2H3O2 (M=82.034 g mol-1) should be dissolved in 400 g of water to prepare a solution which is 11.28% NaC2H3O2 by mass?

  • Chemistry -

    [Mass of salt/(mass salt + 400)]*100 = 11.28
    Solve for mass salt. The easiest way is to let mass salt = x where ever mass salt appears and solve for x.
    I obtained an answer close to 50 grams. Post your work if you get stuck.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry desperately

    i am completely lost, i confused myself. i need to find the concentration of HC2H3O2 HC2H3O2 + NaOH ==> NaC2H3O2 + HOH NaOH C= 0.3 M v= 0.25 L n= 0.075 moles M= 40.00g/mol m= 3.00 g NaC2H3O2 n= 0.075 moles m= 0.4973 g(ammount of …
  2. chemistry

    A buffer is made by adding 0.300 mol HC2H3O2 and 0.300 mol NaC2H3O2 to enough water to make 1.00 L of solution. The pH of the buffer is 4.74 . Calculate the pH of this solution after 0.020 mol of NaOH is added.
  3. physical chemistry

    How many grams of NaC2H3O2 (M = 82.034 g mol-1) should be dissolved in 400.0 g of water to prepare a solution which is 11.28 % NaC2H3O2 by mass?
  4. Chemistry

    a solution is made by combining 5 mL of .2M HC2H3O2, 5 mL of .2M NaC2H3O2, and 10 ml of water. calculate the molarity of HC2H3O2 and of NaC2H3O2 in this new solution
  5. Chemistry

    To prepare a 400 mL solution of .7500 M NaC2H3O2, how many grams of NaC2H3O2 would be needed?
  6. chemistry

    How many grams of NAC2H3O2 must be dissolve in enough water to prepare 250.0 mL of a solution with a pH= 9.200?
  7. Chemistry

    A buffer solution is prepared by adding 14.37g of NaC2H3O2 and 16.00g of acetic acid to enough water to make 500mL of solution. What is the initial concentration of C2H3O2 in the solution?
  8. chemistry

    How many milliliters of 0.413 M NaC2H3O2 are needed to supply 27.3 g NaC2H3O2?
  9. chemistry

    How many grams of NaC2H3O2 are needed to prepare 350. mL of a 2.75 M solution?
  10. Chemistry

    I got pH = 5.3 A 1.00 L buffer solution is 0.250 M in HC2H3O2 and 0.250 M in NaC2H3O2. Calculate the pH of the solution after the addition of 0.150 mol of solid NaOH. Assume no volume change upon the Additon o f NaOH. The Ka value …

More Similar Questions