chemistry

Calculate the theoretical volume of gas you would expect to be evolved
from your experiment if X moles of magnesium were reacted with an
excess of HCl at standard conditions (STP).

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  1. Mg + 2HCl ==> MgCl2 + H2

    mols Mg = X
    mols H2 produced = X (look at the coefficients; 1 mol H2 produced for 1 mol Mg used)
    Volume = mols*22.4L/mol
    volume 22.4X liters.

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    posted by DrBob222

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