Homework Help: Chem

Posted by Meagan on Tuesday, December 13, 2011 at 11:08am.

Zinc reacts with HCl to produce ZnCl2 and Hydrogen gas, H2. What volume, in ml of a 1.25 M solution would be required to completely react with 3.27 g of Zn?

Zn(s) + 2 HCl (aq) -------> ZnCl2 + H2

Chem - DrBob222, Tuesday, December 13, 2011 at 1:15pm
Convert 3.27 g Zn to moles. moles = grams/molar mass.

Using the coefficients in the balanced equation, convert moles Zn to moles HCl.

Then M = moles/L. You know moles and M, solve for L and convert to mL.

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