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ad-work [718]
2 years ago
9

A sample of carbon dioxide gas (CO2) contains 8.551 x 10^25 molecules. How many moles of carbon dioxide does this represent

Chemistry
2 answers:
Gnesinka [82]2 years ago
0 0
Answer:

142.0mol CO2

Explanation:

To convert from molecules to moles we must divide the amount of molecules by Avagadro’s number, 6.02 x 10^23.

8.551 x 10^25 / 6.02 x 10^23 = 142.0mol CO2
vladimir1956 [14]2 years ago
0 0

Answer:

Explanation:

moles= no. of molecules/ avagardo number

        =8.511*10^25/ 6.022*10^23

        =14.13 moles

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Which of the following oils would consume the greatest number of equivalents of hydrogen when subject to catalytic hydrogenation
Murljashka [212]

Answer: Option (B) is the correct answer.

Explanation:

When a fatty acid contains high number of double bonds then its unsaturation will also be high and hence, it will consume greater number of equivalents of hydrogen.

In corn oil, there are no unsaturated sites are present.

In olive oil, there is one unsaturated site with majority of oleic acid. In olive oil, there are more than 70% of total unsaturated oils.

In lard oil, there are around 60% of unsaturated oils.

In herring oil, there are highest number of saturated fatty acids and lowest polyunsaturated acids.

Thus, we can conclude that out of the given options, olive oils would consume the greatest number of equivalents of hydrogen when subject to catalytic hydrogenation.

5 0
3 years ago
A container with a volume 2. 0 L is filled with a gas at a pressure of 1. 5 atm. By decreasing the volume of the container to 1.
worty [1.4K]

The resulting pressure of the gas after decreasing the initial volume from 2 L to 1 L is 3 atm.

<h3>What is Boyle's Law?</h3>

According to the Boyle's Law at constant temperature, pressure of the gas is inversely proportional to the volume of that gas.

For the given question we use the below equation is:

P₁V₁ = P₂V₂, where

P₁ = initial pressure of gas = 1.5 atm

V₁ = initial volume of gas = 2 L

P₂ = final pressure of gas = ?

V₂ = final volume of gas = 1 L

On putting all these values on the above equation, we get

P₂ = (1.5atm)(2L) / (1L) = 3 atm

Hence required pressure of the gas is 3 atm.

To know more about Boyle's Law, visit the below link:
brainly.com/question/469270

5 0
1 year ago
Which of the following statements are FALSE of models? (select all that applies)
ira [324]

Answer:

A B and C

Explanation:

Hopefully this helps

7 0
3 years ago
What parts are present in every chemical equation?
77julia77 [94]
I believe it’s

The reactants

The products

And the Arrow indicating the direction of the chemical reaction
3 0
2 years ago
Which word is used to describe a flow of electrons through a conductor?
Lunna [17]
Electric current is flow of electrons in a conductor. The force required to make current flow through a conductor is called voltage and potential is the other term of voltage.
5 0
2 years ago
Read 2 more answers
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