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Law Incorporation [45]
3 years ago
11

PV = nRT

Chemistry
1 answer:
Vsevolod [243]3 years ago
3 0

Answer:

n=.849103 moles

Explanation:

We want n, so we change the equation to be n= PV/RT

Then plug in the numbers and solve

n=(3*7.2)/(.08206/310)

n=.849103 moles

Hope this helps

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How many moles are in 89 liters of water vapor?
Brut [27]

Answer:

4 moles

Explanation:

A mole is equal to 6.02214076 × 1023 of any chemical unit (atoms, molecules, ions)

To find number of moles in 89 litres of water vapor use the following formula:

1 mole = 22.4 L

That is 1 L = \frac{1}{24} mole

Volume of water vapor = 89 litres

Therefore,

Number of moles in 89 litres = \frac{89}{24}=3.7 ≈ 4 moles

5 0
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A scientist isolates a water-soluble compound from spider venom. The substance has nitrogen, carbon, hydrogen, and oxygen in its
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4 years ago
What is the concentration of a solution of 10. Moles of copper nitrate in 5.0 liters of solution
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3 0
3 years ago
A chemical engineer has determined by measurements that there are 69.0 moles of hydrogen in a sample of methyl tert-butyl ether.
Juli2301 [7.4K]
<span>5.75 moles The formula for methyl tert-butyl ether is (CH3)3COCH3, so a single molecule has 5 carbon, 12 hydrogen, and 1 oxygen atoms. So for every 12 moles of hydrogen, there's 1 mole of oxygen. So simply divide the number of moles of hydrogen by 12 to get the number of moles of oxygen. 69.0 / 12 = 5.75 Therefore there's 5.75 moles of oxygen in the sample.</span>
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3 years ago
Draw a Lewis structure for SO2 in which all atoms have a formal charge of zero. Explicitly showing the zero charges is optional.
Radda [10]

Answer:

See explanation and image attached

Explanation:

"A formal charge (FC) is the charge assigned to an atom in a molecule, assuming that electrons in all chemical bonds are shared equally between atoms, regardless of relative electronegativity" (chemlibretext).

We can obtain the formal charge from the formula;

Formal Charge = [number of valence electrons on atom] – [non-bonded electrons + 1/2number of bonds].

A structure in which SO2 has a zero formal charge is attached to this answer.

Image credit: Chemtopper

3 0
3 years ago
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