Posted by **Nicole** on Monday, July 12, 2010 at 11:49pm.

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?"

equation.

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

- chemistry -
**DrBob222**, Tuesday, July 13, 2010 at 12:43am
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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