chemistry

calculate the amount of 95% marble required to obtain 11.2Litres OF CARBON DIOXIDE

  1. 👍 0
  2. 👎 0
  3. 👁 775
  1. CaCO3 + 2HCl ==> CaCl2 + H2O + CO2
    11.2 L CO2 (atSTP) = 11.2/22.4 = 0.5 mol.
    1 mole CO2 in the reaction = 1 mole CaCO3 initially; therefore, 0.5 mole CO2 means you started with 0.5 mol CaCO3.
    grams = moles x molar mass = ??
    Since the marble is only 95% pure, you must start with a little more marble or
    ??g CaCO3 calculated/0.95 = xx.
    Here is a worked example of a stoichiometry problem.
    http://www.jiskha.com/science/chemistry/stoichiometry.html

    1. 👍 0
    2. 👎 2
  2. You should calculate fully and try to be a little more understanble

    1. 👍 1
    2. 👎 0
  3. CaCO3→CaO+CO2CaCO3→CaO+CO2

    Given volume of CO2" role="presentation" style="box-sizing: border-box; display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: normal; font-size: 19.2px; letter-spacing: normal; overflow-wrap: normal; word-spacing: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; CO2CO2 = 11.2 litres

    Molar volume at STP = 22.4 litres

    1 mole CO2 in the reaction = 1 mole CaCO3No. of moles of CO2 = frac11.222.4=0.5moles" role="presentation" style="box-sizing: border-box; display: table-cell !important; line-height: 0; text-indent: 0px; text-align: center; text-transform: none; font-style: normal; font-weight: normal; font-size: 19.36px; letter-spacing: normal; overflow-wrap: normal; word-spacing: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 20.935em; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; width: 10000em; position: relative;">1 mole CO2 in the reaction = 1 mole CaCO3No. of moles of CO2 = frac11.222.4=0.5moles1 mole CO2 in the reaction = 1 mole CaCO3No. of moles of CO2 = frac11.222.4=0.5moles

    1 mole  rmCO2" role="presentation" style="box-sizing: border-box; display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: normal; font-size: 19.2px; letter-spacing: normal; overflow-wrap: normal; word-spacing: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; position: relative;"> rmCO2 rmCO2 in the reaction = 1 mole CaCO_3

    Therefore, 0.5 mole CO2 means 0.5 mol CaCO3 has reacted in the above reaction.

    No. of grams of CaCO3=no. of moles of CaCO3×molar mass of CaCO3=0.5×100=50g" role="presentation" style="box-sizing: border-box; display: table-cell !important; line-height: 0; text-indent: 0px; text-align: center; text-transform: none; font-style: normal; font-weight: normal; font-size: 19.36px; letter-spacing: normal; overflow-wrap: normal; word-spacing: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 31.886em; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; width: 10000em; position: relative;">No. of grams of CaCO3=no. of moles of CaCO3×molar mass of CaCO3=0.5×100=50gNo. of grams of CaCO3=no. of moles of CaCO3×molar mass of CaCO3=0.5×100=50g

    Since the marble is only 95% pure,

    Amount of marbleCaCO3=500.95=52.63g" role="presentation" style="box-sizing: border-box; display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: normal; font-size: 19.2px; letter-spacing: normal; overflow-wrap: normal; word-spacing: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; position: relative;">CaCO3=500.95=52.63g

    1. 👍 0
    2. 👎 1

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    Can someone answer this question? The enthalpy of combustion of solid carbon to form carbon dioxide is -393.7 kJ/mol carbon, and the enthalpy of combustion of carbon monoxide to form carbon dioxide is -283.3 kj/mol CO. Use these

  2. science

    What happens to carbon in plants when the plants die? The carbon is released into the soil, but it is not used again. The carbon will be released into the soil for use by the next generation.*** The carbon is not released; it is

  3. chemistry

    1. Chlorobenzene, C6H5Cl, is used in the production of chemicals such as aspirin and dyes. One way that chlorobenzene is prepared is by reacting benzene, C6H6, with chlorine gas according to the following BALANCED equation. C6H6

  4. Chemistry

    Urea (NH2)2CO is prepared by reacting ammonia with carbon dioxide. The byproduct is water. 637.2g of ammonia are reacted with 787.3 g of carbon dioxide. a. Which of the two reactants is a limiting reactant? Show your calculations

  1. physics

    A 22.0-L tank of carbon dioxide gas (CO2) is at a pressure of 9.40 105 Pa and temperature of 22.0°C. (a) Calculate the temperature of the gas in Kelvin. K (b) Use the ideal gas law to calculate the number of moles of gas in the

  2. science

    3. How would the carbon cycle be affected if all producers were removed? (1 point) Carbon compounds in animals would not be broken down to release carbon dioxide back into the atmosphere. Carbon would not have a way to enter the

  3. Chemistry

    When the sugar glucose, C6H12O6 is burned in air, carbon dioxide and water vapor are produced. Write the balanced chemical equation for this process, and calculate the theoretical yield of carbon dioxide when 1.00 g of glucose is

  4. science

    The ocean stores carbon from its interactions with the atmosphere, so the ocean serves as (a) _________ for the carbon cycle. carbon flux carbon dioxide carbon source carbon sink*** Bacteria add carbon to the carbon cycle by

  1. chemistry

    Calculate the amount of heat required to completely sublime 76.0g of solid dry ice (CO2) at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3 kJ/mol.

  2. General Chemistry

    A 1.50 rubber balloon balloon is filled with carbon dioxide gas at a temperature of 0.00 degrees celsius and a pressure at 1.00 atm. The density of carbon dioxide under these conditions are 1.98 g/L. At 50.0 degrees celsius, the

  3. Chemistry

    When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 26.4 g of carbon were burned in the presence of 82.1 g of oxygen, 11.7 g of oxygen remained unreacted. What mass of carbon dioxide was produced?

  4. Chemistry

    A piece of solid carbon dioxide, with a mass of 6.8 g, is placed in a 4.0 L otherwise empty container at 23°C. a) What is the pressure in the container after all the carbon dioxide vaporizes? b)If 6.8 g solid carbon dioxide were

You can view more similar questions or ask a new question.