Anonymous asked in Science & MathematicsChemistry · 1 month ago

Chemistry question?

If a 130.76g sample of Zinc reacts with excess hydrochloric acid, 2.01 moles of H2(g) are produced. Calculate the Molar Mass of Zinc.

2 Answers

  • 1 month ago

    Balanced equation for the reaction:

    Zn + 2HCl → ZnCl₂ + H₂

    Mole ratio Zn : H₂ = 1 : 1

    Moles of Zn reacted = Moles of H₂ produced = 2.01 mol

    Molar mass of Zn = (130.76 g) / (2.01 mol) = 65.1 g/mol

    (to 3 sig. fig.)

  • Anonymous
    1 month ago

    Sorry, my answer is "Anonymous" as your post is Anonymous. There is no need for an Anonymous question in this category, Most 'Anonymous' posts are trolls, maybe yours is not, but the high likelihood is there. If you post as yourself, I would be glad to help you with any problem you have.

    I spend a lot of time on each problem, I just want to make sure it's for a worthwhile cause.

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