chemistry (science)

When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction
CaCO3 ---> CaO + CO2

How many grams of calcium carbonate are needed to produce 73.0 of carbon dioxide at STP?

  1. 0
  2. 0
  3. 127
asked by beeni
  1. 73.0 WHAT</b) of carbon dioxide?????
    I will assume you mean grams but if not grams you must adjust the work accordingly.
    You have the balanced equation.
    2. Convert 73.0 g CO2 to mols. moles = grams/molar mass.
    3. Using the coefficients in the balanced equation, convert moles CO2 to moles CaCO3.
    4. Now convert moles CaCO3 to grams. grams CaCO3 = moles CaCO3 x molar mass CaCO3.

    1. 0
    2. 0
    posted by DrBob222
  2. 73 g CO2 is how many moles?

    From the balanced equation, it takes one mole of calcium carbonate to produced one mole of carbon dioxide.

    1. 0
    2. 0
    posted by bobpursley
  3. I did it like

    76.0Lof CO2/22.4L = 3.2589moles of CO2
    Moles of CO2 = Moles of CaCaCO3

    to convert it in g's:
    3.2589moles of CaCO3*(100g/1mole Of CaCO3)
    = 325.89g

    1. 0
    2. 0
    posted by beeni
  4. OK. So it's 73.0 LITERS. You made a typo in your work where you typed 76.0 BUT your answer is correct for 73.0/22.4. If you are keying this answer into an on-line database, I suspect your answer is coming back wrong because you are posting too many significant figures. Your answer should be rounded to 326 grams CaCO3.

    1. 0
    2. 0
    posted by DrBob222
  5. ohh yea i figured that out. nd thnxxx a lot fohh ur help.

    1. 0
    2. 0
    posted by beeni
  6. 130.28 gr

    1. 0
    2. 0
    posted by ashraf
  7. 166 gr

    1. 0
    2. 0
    posted by ashraf

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry 1201

    When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction CaCO3(s)->CaO(s)+CO2(g) What is the mass of calcium carbonate needed to produce 53 L of carbon dioxide at STP?

    asked by John on April 16, 2012
  2. Chemistry-Please help

    When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction CaCO3(s)---->CaO(s)+CO2(g) How many grams of calcium carbonate are needed to produce 59.0L of carbon dioxide at STP?

    asked by Rose on October 16, 2009
  3. chemistry

    When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction \rm CaCO_3{\it(s)}\rightarrow CaO{\it(s)}+CO_2{\it(g)} How many grams of calcium carbonate are needed to produce 53.0 L of

    asked by Anonymous on May 1, 2010
  4. chemistry 1

    When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction How many grams of calcium carbonate are needed to produce 49.0 of carbon dioxide at STP?

    asked by safwan hakim on May 2, 2010
  5. Chemistry

    When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas. How many grams of calcium carbonate are needed to produce 81.0 of carbon dioxide at STP? Is the asnwer 80.95

    asked by George on September 21, 2008
  6. chemistry

    when calcium carbonate, caco3(s) is heated, it decomposes to form calcium oxide, cao(s) and carbon dioxide gas. how many liters of carbon dioxide will be produced at stp if 2.38 kg of calcium carbonate reacts completely?

    asked by Anonymous on May 7, 2015
  7. Chemistry

    calcium carbonate decomposes if heated to form calcium oxide and carbon dioxide. if 24.5 grams of calcium carbonate decompose how many moles of calcium carbonate reacted?

    asked by Channon on January 21, 2013
  8. Chemistry

    1. Hydrogen gas combines with oxygen gas to yield water. if 15 g O2 is present in the reaction, compute how much water will be produced. 2. Ten (10)grams methane gas combines with oxygen gas to form water and carbon dioxide. How

    asked by Matt on August 28, 2013
  9. chemistry

    Calcium carbonate, CaCO3, when heated decomposes to calcium oxide and carbon dioxide. Calculate the mass of calcium oxide formed when 2.0 grams of CaCO3 is decomposed.

    asked by Unknown on March 5, 2016
  10. Chemistry

    What volume of carbon dioxide is produced when 0.979 mol of calcium carbonate reacts completely according to the following reaction at 0oC and 1 atm? calcium carbonate (s)---> calcium oxide (s) + carbon dioxide (g) Should I use

    asked by Mohamed on April 26, 2012

More Similar Questions