Post a New Question

AP Chemistry

posted by .

An aqueous sulfuric acid solution containing 571.6 g of H2SO4 per liter of solution at 20°C has a density of
1.3294 g/mL. Calculate (a) the molarity, (b) the molality, (c) the percent by mass, and (d) the mole fraction of
H2SO4 for the solution. (MM H2SO4 = 98.08; MM H2O = 18.01

I have no idea where to start.

  • AP Chemistry -

    You must remember the definitions. I'll get you started.
    M = #moles/liter of solution.
    m = # moles/kg solvent.
    %w/w = grams H2SO4/100 g solution.
    X = moles H2SO4/(moles H2SO4 + moles H2O)

    For the first one, molarity.
    density = 1.3294 g/mL.
    So how much would a liter weigh? It will weigh 1.3294 g/mL x 1000 mL = 1329.4 grams.
    How much of that is H2SO4? The problem tells you it has 571.6 g H2SO4 in it.
    How many moles is that? It is
    571.6 g H2SO4 x (1 mole H2SO4/98.08 g H2SO4) = 5.8279 moles which rounds to 5.828 to 4 significant figures.
    So you have 5.828 moles H2SO4/L of solution which makes it 5.828 molar.

    I will leave the others to you. Just follow the definitions.

  • AP Chemistry -

    volume of 34.6 and mass of 46.0 what is the SF

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. science

    Concentrated sulfuric acid (18.4 molar H2SO4) has a density of 1.84 grams per milliliter. After dilution with water to 5.20 molar, the solution has a density of 1.38 grams per milliliter and can be used as an electrolyte in lead storage …
  2. chemistry

    A sulfuric acid solution containing 571.6g of H2SO4 per of solution has a density of 1.329g/cm3. Calculate (a) mass percentage (b)mole fraction (c) molality (d) molarity of H2SO4 in this solution.
  3. Chemistry

    An aqueous solution of H2SO4 is 60.0 % H2SO4 by mass. The density of the solution is 0.968 g/mL . I need to find the Molality, mole fraction, and Molarity.
  4. chemistry

    What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O?
  5. Chemistry

    H2SO4 solution containing 200.1 g of H2SO4 in 0.3500 L OF solution has a density of 1.3294 g/ml.calculate (A) Mass%H2SO4(m/m) (B)mass%H2O(m/m) (C)Molarity (D)Molality
  6. Chemistry

    H2SO4 solution containing 200.1 g of H2SO4 in 0.3500 L OF solution has a density of 1.3294 g/ml.calculate (A) Mass%H2SO4(m/m) (B)mass%H2O(m/m) (C)Molarity (D)Molality
  7. Chemistry

    Sulfuric acid, H2SO4, is sold as a 36% aqueous solution. What is this concentration in A. Molality B. Molarity C. The Mole Fraction Please and thank you. :)
  8. chemistry

    A sulfuric acid solution containing 571.8gg of H2SO4 per liter of solution has a density of 1.329 g/cm3 Calculate the mole fraction of H2SO4 in this solution.
  9. chm

    An aqueous solution that is 10.0 percent sulfuric acid (H2SO4) by mass has a density of 1.143 g/mL. Determine the molality of the solution. ( 3 significant figures)
  10. chemistry

    4. A sulfuric acid solution containing 571.6 g of H2SO4 per liter of solution has a density of 1.329 g/cm3 . Calculate a. The mass percentage b. The mole fraction c. The molality d. The molarity of H2SO4 in this solution

More Similar Questions

Post a New Question