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Rus_ich [418]
3 years ago
15

A length of copper wire has a mass of 6.19 g. How many moles of copper are in the wire? moles​

Chemistry
1 answer:
zhannawk [14.2K]3 years ago
6 0

Answer:

molar mass of copper = 63.55 g/mol

( <u>1</u><u> </u><u>mol </u><u>of </u><u>copper)</u>

6.19 g copper × ( 63.55g copper )

0.0975 moles

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A gas bubble has a volume of 0.650 mL at the bottom of a lake, where the pressure is
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Considering the Boyle's law, as the pressure decreases, volume increases and has a value of 2.246 mL.

<h3>Boyle's law</h3>

Boyle's law establishes the relationship between the pressure and the volume of a gas when the temperature is constant.

This law says that the volume occupied by a given mass of gas at constant temperature is inversely proportional to the pressure. This means that if the pressure increases, the volume decreases, while if the pressure decreases, the volume increases.

Boyle's law is expressed mathematically as:

P×V=k

If an initial state 1 and a final state 2 are analyzed, Boyle's law is expressed as:

P1×V1=P2×V2

<h3>Volume at the surface of the lake</h3>

In this case, you know:

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Replacing in Boyle's law:

3.46 atm× 0.650 mL= 1 atm×V2

Solving:

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Finally, as the pressure decreases, volume increases and has a value of 2.246 mL.

Learn more about Boyle's law:

brainly.com/question/4147359

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