Pd 5 Chemistry March 18, 2010
Balance the equation Write the equation Start the ratio
Go to the Next part of the Question!!!
Hint: What do we need to figure out the moles part of the stoichiometry problem… Go Back to 1 st Q
2Hg + O 2 2HgO Hg + O 2 HgO Hg Hg + O 2
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Hint: Is the equation balanced. Go Back to 2 st Q
What’s FIRST?
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Hint: Are all the numbers correct in the ratio equation? Go Back to 3 st Q
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Hint: Look at the element, amount, and where they are placed on the ratio equation. Go Back to 4 st Q
NEXT
And then…And then…And then… And then… And then… Have to start Stoichiometry for O 2 We are done Hg is limiting
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Hint: What do we need to decide if something is limiting Go Back to 6 st Q
Next?
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Hint: Look at the element, amount, and where they are placed on the ratio equation. Go Back to 7 st Q
270.7 g HgO NEXT
O 2 =270.7 g HgO Hg= 16.2 g HgO
Hint: The smaller number is limiting because there less of that element to use. Go Back
YAY!!!! We’re done