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Chemistry

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If equal masses of Sodium and Strontium were reacted with excess hydrochloric acid, which experiment would produce a greater volume of hydrogen gas?

  • Chemistry - ,

    You have to start with balanced equation..


    2Na+2HCl> 2NaCl + H2 or one mole Na gives 1/2 mole of H2
    Sr +2HCl>SrCl2 + H2 so one mole of Sr gives one mole of H2

    Now mass

    let m be the mass

    m/23 = moles of Na
    m/38=mole Sr

    amount of gas:
    Sr: m/38
    Na: m/23 (1/2)=m/46

    well, m/38 is greater than m/46, so the answer is...

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