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HELP!!! a few chemistry a-level questions watch

    • Thread Starter

    1) lithium hydroxide is used to absorb CO2. CO2 absorption often uses other absorbants such as sodium hydroxide solution or potassium hydroxide solid. Discuss the advantages of lithium hydroxide solid as an absorbant in the ISS over these alternatives

    2) Cargo, including replacement lithium hydroxide, is sent up to the ISS about every 3 weeks
    How much lithium hydroxide should be sent up on each cargo shipment? comment on your answer

    3) Some spacecraft use a system based on a lithium peroxide absorbant (Li2O2) to remove CO2 instead of lithium hydroxide.
    By considering the mass of CO2 removed by 1kg of absorbant, explain why lithium peroxide is sometimes preferred to lithium hydroxide to absorb CO2 in a spacecraft.
    • Thread Starter

    • Thread Starter

    bumping this again aha
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