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Norma-Jean [14]
3 years ago
13

Carbonated drinks in cans have a small amount of space above the liquid level inside the can known as

Chemistry
2 answers:
Verdich [7]3 years ago
7 0

Answer:c

Explanation:

kenny6666 [7]3 years ago
3 0

Answer:

Temperature stays constant.

Explanation:

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What is the percent composition by mass of oxygen in Ca(NO3)2 (gram-formula= 164 g/mol)?
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To find this, we will use this formula:

Molar mass of element
------------------------------------ x 100
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So, first lets calculate the mass of the compound as a whole. We use the atomic masses on the periodic table to determine this.

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O6 (there are six nitrogens: 3 times 2): 95.994 g/mol

When we add all of those numbers up together, we get 164.086. That is the molar mass for the whole compound. However, we are trying to figure out what percent of the compound oxygen makes up. From the molar mass, we know that 95.994 of the 164.086 is oxygen. Lets plug those numbers into our equation!

95.994
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