posted by .

A 0.8378 g sample of calcium oxalate is heated to 1000oC,
CaC2O4 = CaO + CO + CO2
(a) the moles of CaO remaining after ignition
(b) the mmoles of CO evolved
(c) the weight of CO2 produced.

  • chemistry -

    mols CaC2O4 initially = g/molar mass = ?
    All of the reactants and products are 1:1 so conversion of one to the other is easy.
    mols CaO = mols CaC2O4 = mols CO = mols CO2
    a) mols CaO = mols CaC2O4
    b) mols CO x 1000 = mmoles CO
    c) g CO2 = mols CO2 x molar mass CO2

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    CaCO3 = CaO +CO2 after a 15.8g sample of calcium carbonate was heated in an open container to cause decompostition the mass of the remaining solid was determined to be 9.10g. calculate the mass of carbon dioxide produced.
  2. college chemistry

    Calcium oxide (CaO), an important ingredient in cement, is produced by decomposing calcium carbonate (CaCO3) at high temperature: CaCO3(s) → CaO(s) + CO2(g) In one particular reaction, 40 g of CaCO3 is heated at 750°C in a 5.0 …
  3. chemistry

    determine the mass of CO2 produced when 76.8g of CaO is reacted with 50.0 g of C acording to the unbalanced equation... CaO + C ==> CaC2 CO2 after i balanced the equation i got 2CaO +5C ==> 2CaC2 +CO2
  4. Chemistry(Please check)

    The equilibrium constant, Kc for the system, CaO(s) + CO2(g) == CaCO3(s), is A. Kc = (CaO) (CO2) / (CaCO3) B. Kc = (CO2) C. Kc = (CaCO3)/(CaO) D. Kc = (CaCO3) / (CaO) (CO2) E. Kc = 1 / (CO2) My answer is (CaCo3) / (CaO)(CO2). Would …
  5. Chemistry

    In the following reaction, 28 grams of Calcium Oxide CaO reacts with Carbon Dioxide CO2 to produce Calcium Carbonate CaCO3. How much Calcium Carbonate is produced?
  6. Chemistry

    I'm working on a problem that says: A 4.00 gram sample of a mixture of CaO and BaO is placed in a 1.00 L vessel containing Co2 at a pressure of 730 torr and a temperature of 25C. The CO2 reacts with the CaO and BaO forming CaCO3 and …
  7. Science

    Consider the following reaction: CaCO3 - CaO + CO2 Calcium carbonate (CaCO3) was heated to yield CaO and CO2. If 60.0g of CaCo3 was heated and the yield for CaO was 44.6%, calculate the mass of CaO created.
  8. Chemistry

    A sample of calcario and other components of the soil was intensely warm. Under these conditions, the calcario undergoes decomposition in calcium oxide and carbon dioxide. CaCO3 (s)-> CaO (s) + CO2 (g) The analysis of 71, 42 g of …
  9. Chemistry

    100g of calcium carbonate was decomposed by heating to produce 45g of calcium oxide and carbon dioxide, using the equation given, calculate the Percentage Yield of Calcium Carbonate. CaCO3 -------> CaO + CO2 Please help me i tried …
  10. Chemistry

    A 0,518 g sample of limestone was dissolved and then the calcium was precipitated as calcium oxalate ( CaC2O4). Afer filtrating the precipitate, it was needed 40,0 ml of KMnO4 0,250 N acidified with H2SO4 to titrate it. ¿ What is …

More Similar Questions