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Citrus2011 [14]
3 years ago
8

Help please need help??

Chemistry
2 answers:
Pavel [41]3 years ago
6 0

Answer:

2moles

Explanation:

nydimaria [60]3 years ago
4 0
2 calcium molecules are needed
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Answer:

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Explanation:

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A sample containing 2.30 mol of Ne gas has an initial volume of 8.00 L. What is the final volume, in liters, when the following
marta [7]

Answer:

a. 4,00L

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Explanation:

Avogadro's law says:

\frac{V_1}{n_1} =\frac{V_2}{n_2}

a. If initial conditions are 2,30mol and 8,00L and you lose one-half of atoms, that means you have 1,15mol:

\frac{8,00L}{2,30mol} =\frac{V_2}{1,15mol}

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b. If initial conditions are 2,30mol and 8,00L and you add 2,30mol, that means you have 4,60mol:

\frac{8,00L}{2,30mol} =\frac{V_2}{4,60mol}

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c. 25,0g of Ne are:

25,0g × (1mol / 20,1797g) = 1,24 moles of Ne. That means you have 2,30mol - 1,24mol = 3,54mol of Ne

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I hope it helps!

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3 years ago
What is the time required for contamination source
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Hi there!

It can take years to remove all of the harmful substances from the water.

I hope my answer helped :)
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Explanation:

Hope this helps!

8 0
2 years ago
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