Homework Help: chemistry

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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