Homework Help: chemistry

Posted by pj on Tuesday, January 19, 2010 at 12:38am.

7. Write the balanced equation for the equation for the reaction of magnesium with HCl. What is the mole ratio between magnesium and magnesium chloride will be produced? If 2.5g of magnesium react, how many moles of magnesium chloride will be produced? How many grams of magnesium chloride will be produced?

chemistry - DrBob222, Tuesday, January 19, 2010 at 11:41am
Mg + 2HCl ==> MgCl2 + H2

1. Convert 2.5 g Mg to moles. # moles = grams/molar mass.
2. Using the coefficieints in the balanced equation, convert moles Mg to moles MgCl2.
3. Convert moles MgCl2 to grams. # grams = moles x molar mass.
Post your work if you get stuck.
chemistry - Anonymous, Thursday, April 4, 2013 at 2:08am
0.04

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