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Anit [1.1K]
2 years ago
6

A student determines that 23.1 J of heat are required to raise the temperature of 6.67 g of an

Chemistry
1 answer:
Semenov [28]2 years ago
5 0

A student determines that 23.1 J of heat are required to raise the temperature of 6.67 g of an

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Write the formular of the compound formed when element D and oxygen react together​
miss Akunina [59]

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D oxide

Explanation:

Hope this helped!

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2 years ago
What is the iupac name of: ​
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saturated hydrocarbon

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ElenaW [278]

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COLORS

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To find the Ce4+ content in a solid sample, 4.3718 g of the solid sample were dissolved and treated with excess iodate to precip
gulaghasi [49]

Answer:

3.43 %

Explanation:

We need  to calculate first the number of moles of CeO2 produced in the combustion. Given its formula we know how many moles of Ce atom are present. From there calculate the mass this number of moles this represent and then one can calculate the percentage.

0.1848 g CeO2 x 1 mol CeO2/172.114g = 0.00107 mol CeO2

0.00107 mol CeO2 x 1 mol Ce/ 1 mol CeO2 = 0.00107 mol Ce

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0.150 g Ce/ 4.3718 g sample  x 100 = 3.43 %

5 0
3 years ago
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Predict what the Co, levels will be when you are "old". How many plants/trees need to be planted now to keep carbon dioxide in t
Anna [14]

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A lot of them.

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It would take hundreds of thousands of trees to clear all of the emmisions.

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3 years ago
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