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17 April, 01:23

In the chemical reaction, mg + 2hcl mgcl2 + h2 how many moles of hcl are needed to completely react with 3.5 moles of mg?

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  1. 17 April, 03:42
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    The balanced equation for the above reaction is as follows;

    Mg + 2HCl - - - > MgCl₂ + H₂

    stoichiometry of Mg to HCl is 1:2

    number of Mg moles reacted - 3.5 mol

    1 mol of Mg reacts with 2 mol of HCl

    therefore 3.5 mol of Mg requires - 2 x 3.5 = 7.0 mol of HCl

    number of HCl moles required to completely react with 3.5 mol of Mg is 7.0 mol of HCl
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