Tuesday, 7 May 2013

2.20 describe the laboratory preparation of carbon dioxide from calcium carbonate and dilute hydrochloric acid

calcium carbonate + hydrochloric acid → calcium chloride + water + carbon dioxide

CaCO3 + 2HCl → CaCl2 + H2O + CO2

10 comments:

  1. Hannah do you know what the laboratory prep is, like you did with the hydrogen peroxide one in 2.18, or is it the same thing that I have to substitute in the substances to the equipment into that one?

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    1. Place calcium carbonate in a conical flask. Add hydrochloric acid in the conical flask and carbon dioxide will be released. Use downwards displacement to measure how much CO2 was made.

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  2. Hannah do you know what the laboratory prep is, like you did with the hydrogen peroxide one in 2.18, or is it the same thing that I have to substitute in the substances to the equipment into that one?

    ReplyDelete
    Replies
    1. Place calcium carbonate in a conical flask. Add hydrochloric acid in the conical flask and carbon dioxide will be released. Use downwards displacement to measure how much CO2 was made.

      Delete
  3. ^ Calcium carbonate (in the form of marble chips) is added to the bottom of a conical flask, along with dilute hydrochloric acid.
    The HCL reacts with the calcium carbonate to produce calcium chloride, water, and carbon dioxide gas.
    The gas is then collected in a gas syringe or using downwards delivery. Hope that answers your question :)

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  5. eyy amar can u see this lol its shrey

    ReplyDelete