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vesna_86 [32]
2 years ago
7

How many grams are in 5 moles of 7.75 grams?

Chemistry
1 answer:
lesya692 [45]2 years ago
5 0

Answer:

21

Explanation:

bcecause thats the only one

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Methane gas and oxygen gas react to form water vapor and carbon dioxide gas. What volume of water would be produced by this reac
yanalaym [24]

volume of H₂O = 7.2 L

Explanation:

The combustion reaction of methane (CH₄):

CH₄ + 2 O₂ → CO₂ + 2 H₂O

Now we calculate the number of moles of methane using the following formula:

number of moles = volume / 22.4 (L/mole)

number of moles of CH₄ = 3.6 / 22.4

number of moles of CH₄ = 0.16 moles

Taking in account the chemical reaction, we devise the following reasoning:

if             1 mole of CH₄ produce 2 moles of H₂O

then  0.16 moles of CH₄ produce X moles of H₂O

X = (0.16 × 2) / 1 = 0.32 moles of H₂O

And now we can calculate the volume of water (H₂O) produced by the reaction:

number of moles = volume / 22.4 (L/mole)

volume = number of moles × 22.4 (L/mole)

volume of H₂O = 0.32 × 22.4

volume of H₂O = 7.2 L

Learn more about:

combustion reaction

brainly.com/question/14122510

#learnwithBrainly

8 0
3 years ago
When the temperature of a substance increases, do the intermolecular forces change? why or why not?
xeze [42]

Answer:

If the temperature rises much more, the individual particles will have enough energy to overpower the intermolecular forces, causing the particles to disperse and the material to become a gas (assuming that their chemical bonds are not so weak that the compound decomposes from the high temperature).

Explanation:

Hope this helps!

Please mark me as Brainlinieast.

5 0
3 years ago
Repeated trials and replication are the same thing. <br><br> - True<br> - False
Sauron [17]

Answer:

false

Explanation:

get a good grade :)

4 0
3 years ago
What is an isotope like carbon-14
jek_recluse [69]
An isotope is when an element has the same number of protons and different number of neutrons. That is why the atomic mass changes.
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3 years ago
What is the density of mercury.
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The density of mercury is <span>5.43 g/cm³.</span>
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