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how many mililiters of a 0.27 M HCl solution are needed to react completely with 2.7 g of zinc to form zinc (II) chloride?"

2 HCl + 1 Zn -----> 1 ZnCl2 + 1 H2

  • chemistry -

    1. Convert 2.7 g Zn to moles. moles = grams/molar mass.
    2. Using the coefficients in the balanced equation, convert moles Zn to moles HCl.
    3. Now convert moles HCl to volume.
    M = moles/L. You know M and moles, calculate L, then convert to mL.

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