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Pd 5 Chemistry March 18, 2010
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Balance the equation
Write the equation
Start the ratio
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Go to the Next part of the Question!!!
![Page 4: 28.) If 15.0 grams of Hg react with 20.0 grams of O 2 , what mass of HgO is formed?](https://reader036.vdocuments.us/reader036/viewer/2022070407/5681432f550346895dafa0ce/html5/thumbnails/4.jpg)
Hint: What do we need to figure out the moles part of the stoichiometry problem…
Go Back to 1st Q
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2Hg + O2 2HgO
Hg + O2 HgOHg Hg + O2
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Go to the Next part of the Question!!!
![Page 7: 28.) If 15.0 grams of Hg react with 20.0 grams of O 2 , what mass of HgO is formed?](https://reader036.vdocuments.us/reader036/viewer/2022070407/5681432f550346895dafa0ce/html5/thumbnails/7.jpg)
Hint: Is the equation balanced.
Go Back to 2st Q
![Page 8: 28.) If 15.0 grams of Hg react with 20.0 grams of O 2 , what mass of HgO is formed?](https://reader036.vdocuments.us/reader036/viewer/2022070407/5681432f550346895dafa0ce/html5/thumbnails/8.jpg)
What’s FIRST?
gHg
molHggHg
59.200
21
gHg
molHggHg
59.200
20.15
gHg
molHggHg
59.200
10.15
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Go to the Next part of the Question!!!
![Page 10: 28.) If 15.0 grams of Hg react with 20.0 grams of O 2 , what mass of HgO is formed?](https://reader036.vdocuments.us/reader036/viewer/2022070407/5681432f550346895dafa0ce/html5/thumbnails/10.jpg)
Hint: Are all the numbers correct in the ratio equation?
Go Back to 3st Q
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gHg
molHggHg
59.200
10.15
molHgO
gHgO
molHg
molHgO
1
59.216
2
2
gHgO
molHgO
molHg
molHgO
59.216
1
2
2
molHgO
gHgO
molHgO
molHg
2
59.216
2
2
HgOHg 22 2
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Go to the Next part of the Question!!!
![Page 13: 28.) If 15.0 grams of Hg react with 20.0 grams of O 2 , what mass of HgO is formed?](https://reader036.vdocuments.us/reader036/viewer/2022070407/5681432f550346895dafa0ce/html5/thumbnails/13.jpg)
Hint: Look at the element, amount, and where they are placed on the ratio equation.
Go Back to 4st Q
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NEXT
molHgO
gHgO
molHg
molHgO
gHg
molHggHg
1
59.216
2
2
59.200
115
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And then…And then…And then… And then… And then…
Have to start Stoichiometry
for O2
We are done
Hg is limiting
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Go to the Next part of the Question!!!
![Page 17: 28.) If 15.0 grams of Hg react with 20.0 grams of O 2 , what mass of HgO is formed?](https://reader036.vdocuments.us/reader036/viewer/2022070407/5681432f550346895dafa0ce/html5/thumbnails/17.jpg)
Hint: What do we need to decide if something is limiting
Go Back to 6st Q
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Next?
molHgO
gHgO
molO
molHgO
gO
molOgO
1
59.216
1
2
32
120
22
22
gHgO
molHgO
molHgO
molO
gO
molOgO
95.216
1
2
1
32
11 2
2
22
gHgO
molHgO
molO
molHgO
gO
molOgO
59.216
1
1
2
32
120
22
22
HgOOHg 22 2
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Go to the Next part of the Question!!!
![Page 20: 28.) If 15.0 grams of Hg react with 20.0 grams of O 2 , what mass of HgO is formed?](https://reader036.vdocuments.us/reader036/viewer/2022070407/5681432f550346895dafa0ce/html5/thumbnails/20.jpg)
Hint: Look at the element, amount, and where they are placed on the ratio equation.
Go Back to 7st Q
![Page 21: 28.) If 15.0 grams of Hg react with 20.0 grams of O 2 , what mass of HgO is formed?](https://reader036.vdocuments.us/reader036/viewer/2022070407/5681432f550346895dafa0ce/html5/thumbnails/21.jpg)
270.7 g HgO
NEXT
molHgO
gHgO
molO
molHgO
gO
molOgO
1
59.216
1
2
32
120
22
22
![Page 22: 28.) If 15.0 grams of Hg react with 20.0 grams of O 2 , what mass of HgO is formed?](https://reader036.vdocuments.us/reader036/viewer/2022070407/5681432f550346895dafa0ce/html5/thumbnails/22.jpg)
O2 =270.7 g HgO
Hg= 16.2 g HgO
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Hint: The smaller number is limiting because there less of that element to use.
Go Back
![Page 24: 28.) If 15.0 grams of Hg react with 20.0 grams of O 2 , what mass of HgO is formed?](https://reader036.vdocuments.us/reader036/viewer/2022070407/5681432f550346895dafa0ce/html5/thumbnails/24.jpg)
YAY!!!! We’re done