Post a New Question

AP Chemistry

posted by .

The question asked... Calculate the solubility of calcium sulfate in grams solute per 100 grams solvent. Assume that the volume occupied by the solute in the solution in negligibly small. I solved and got 4.9 x 10 ^-3 mol/L... how do I put this in grams solute per 100 grams solvent?

  • AP Chemistry -

    M = moles/L.
    moles = g/molar mass. You know molar mass and you know moles, solve for grams. That, of course, will be grams/L and you take 1/10 of that to obtain g/100 mL of solution which is g/100 mL solvent IF the mass solute is very small.

  • AP Chemistry -

    I came up with 6.67 x 10^-3 g solute/ 100g solvent. Based on the information in the problem, does this seem about right?

  • AP Chemistry -

    I don't know what you used for Ksp; however, based on your answer of 4.9 x 10^-3 moles/L, I think it should be more like 0.0667.
    0.0049 x 136 something = 0.666 g/L and 1/10 that is 0.0667.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. "Given Molality, calculate..."

    "Given: An aqueous solution of C6H12O6 with a density of 1.18 g/ml" I) Calculate Molarity 1) It firsts asks me to, "State the moles of solute" 2) Calculate the mass of the solute in grams - I think I can do this if I know how to get …
  2. chemistry

    Which of the following is NOT true for solutes and solvents?
  3. chemistry

    Which of the following can be determined if the boiling-point elevation, the mass of solute and the molality of a given solution are known. The identity of the solute The polarity of the solute The size of a molecule of the solute …
  4. Chemistry

    I need help working the problems, I don't know how I got the right answers Calculate each of the following quantities: (a) Grams of solute in 185.8 mL of 0.267 M calcium acetate (b) Molarity of 500. mL of solution containing 21.1g …
  5. Chemistry

    I need help working the problems, I don't know how I got the right answers Calculate each of the following quantities: (a) Grams of solute in 185.8 mL of 0.267 M calcium acetate (b) Molarity of 500. mL of solution containing 21.1g …
  6. chemistry

    Barium sulfate is listed as insoluble on solubility tables. It does, however, dissolve to a small extent. Its solubility at 50 'C is 0.00034g in 100. g of water. Express this solubility in parts per million -I know the equation is …
  7. Chemistry

    How do I calculate the solubility of a compound in grams of solute per 100 grams of solution?
  8. Chemistry

    Calculate the solubility of calcium sulfate in grams solute per 100 grams of solvent. Assume that the volume occupied by the solute in the solution is negligibly small. (Ksp for CaSO4 = 2.4 X 10^-5)
  9. Chemistry

    1) The molecular mass of a substance was determined by the freezing point depression technique. The minimum data required for the determination are a. ƒ´Tf and Kf only. b. ƒ´Tf , Kf and mass of solute. c. ƒ´Tf , Kf , mass of …
  10. chem

    Water is the solvent and you can assume the density of water is 1.0g/cc. a.) What will be the amount of solute in grams if the volume is 500 mL and the concentration of solution is 15% w/w?

More Similar Questions

Post a New Question