chemistry

posted by .

the molarity of 2% by weight of aqueous solution of H2S4(molecular weight = 98)

  • chemistry -

    2% w/w means 2g H2SO4/100 g soln or 20g/1000g solution.
    20g is how many mols? That's 20/molar mass = ?
    M = mols/L solution. You don't know the volume of the solution. You need the density to determine that.
    volume = mass/density converted to L. Then M = mols/L will give it to you

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    The molecular weight of glucose is 180.2 and the molecular weight of lactose is 342.3. What is the molarity of a 25% glucose solution?
  2. Chemistry

    If the same solute is dissolved in two different solvents to the same concentration and the same temperature, the osmotic pressure ____ My answer & reason: solution A has a smaller molecular weight and therefore, a larger Molarity …
  3. chemistry

    Two solutions are prepared. In Solution A, 5.0 g of a substance of molecular weight 50 is dissolved in 100 mL of pure water. In Solution B, 5.0 g of a substance with molecular weight of 75 is dissolved in 100 mL of pure water. The …
  4. chemistry

    what is the molarity of 40g in 0.5L of solution. Molecular weight of substance is 100.09g/mole.
  5. Chemistry

    What is the molarity of a solution of sucrose that has a density of 1.24g/ml and a molecular weight of 342.3g/mol
  6. CHEMISTRY

    You mix 40.0 g of ethanol (C2H5OH, molecular weight = 46.1 g/mol) and 60.0 g of water (molecular weight = 18.0 g/mol) The resulting solution has a density of 920 g/L. a)Calculate the molarity of ethanol in this solution?
  7. Chemistry

    An aqueous solution containing 10.50 g of a compound in 100.0 ml of solution has an osmotic pressure of 0.0187 atm. at 25°C. What is the molecular weight of the compound?
  8. Chemistry

    Consider an aqueous solution that contains 22 % (by mass) of a hypothetical solute Z. The formula weight of the solute Z is 215.2. The density of the solution is observed to be 1.12 g/mL. What is the molarity of Z in this solution?
  9. science

    20 g of K3PO4 dissolved in 350 ml water,to come up with 500 ml solution. calculate : molecular weight Equivalent weight molarity normality molality
  10. Chemistry

    We have an aqueous solution that contains 22% (by mass) of a hypothetical solute Z. The formula weight of the solute Z is 215 g/mol. The density of the solution is observed to be 1.1 g/mL. What is the molarity of Z in this solution?

More Similar Questions