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evablogger [386]
2 years ago
12

A balloon that contains 0.750 moles of gas has a volume of 16.8 L. If additional gas causes the balloon to expand to a volume of

25.4 L at a constant pressure and temperature, how many moles of gas does the balloon now contain?
Chemistry
2 answers:
crimeas [40]2 years ago
7 0

Answer:

\frac{V1}{n1} =\frac{V2}{n2}\\\\\frac{16.8L}{0.750mol} =\frac{25.4L}{n2}\\\\\\n2=1.13mol

Explanation:

mixas84 [53]2 years ago
5 0

the answer is 1.13 moles

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6 0
2 years ago
What is the mass of silver chlorate (191.32 g/mol) that decomposes to release 0.466L of oxygen gas at STP? AgC1036) _AgCl). _026
vesna_86 [32]

Answer : The mass of silver chlorate will be 2.654 grams.

Explanation :

The balanced chemical reaction is,

2AgClO_3\rightarrow 2AgCl+3O_2

First we have to calculate the moles of oxygen gas at STP.

As, 22.4 L volume of oxygen gas present in 1 mole of oxygen gas

So, 0.466 L volume of oxygen gas present in \frac{0.466}{22.4}=0.0208 mole of oxygen gas

Now we have to calculate the moles of silver chlorate.

From the balanced chemical reaction, we conclude that

As, 3 moles of oxygen produced from 2 moles of silver chlorate

So, 0.0208 moles of oxygen produced from \frac{2}{3}\times 0.0208=0.01387 moles of silver chlorate

Now we have to calculate the mass of silver chlorate.

\text{Mass of }AgClO_3=\text{Moles of }AgClO_3\times \text{Molar mass of }AgClO_3

Molar mass of silver chlorate = 191.32 g/mole

\text{Mass of }AgClO_3=0.01387mole\times 191.32g/mole=2.654g

Therefore, the mass of silver chlorate will be 2.654 grams.

3 0
2 years ago
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I cant help u sorry .......
3 0
3 years ago
3.<br> what is the relationship between a coefficient; chemical formula
Novosadov [1.4K]

The coefficient in a chemical formula represents the amount of each chemical present. The amount of a substance is measured in moles.

4 0
2 years ago
Are moles larger than atoms?
nataly862011 [7]

Answer:

YES BC ATMONS ARE THE SMALLEST UNIT sorry for caps

Explanation:

3 0
2 years ago
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