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Maru [420]
3 years ago
11

Methane CH4 gas and oxygen O2 gas react to form carbon dioxide CO2 gas and water H2O vapor. Suppose you have 11.0 mol of CH4 and

7.0 mol of O2 in a reactor. Suppose as much as possible of the CH4 reacts. How much will be left? Round your answer to the nearest 0.1 mol
Chemistry
1 answer:
Virty [35]3 years ago
8 0

Answer:

The number of moles of CH₄ that will remain is 7.5 moles

Explanation:

Complete combustion reaction of oxygen and methane is given as;

CH₄ + 2O₂ → CO₂ + 2H₂O

comparing the number of moles of methane and oxygen in the reaction above, the amount of methane used in the reaction is calculated as follows;

2 moles of O₂   -----------> 1 mole of CH₄  

7 moles of O₂ ------------> x moles of CH₄

x = 7 / 2

x = 3.5 moles of CH₄

Total moles of CH₄ in the reactor = 11.0 moles

The number of moles that will remain = 11.0 moles - 3.5 moles

The number of moles that will remain = 7.5 moles

Therefore, the number of moles of CH₄ that will remain is 7.5 moles

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6 0
3 years ago
How many molecules of propane were in the erlenmeyer flask? Avogadro's number is 6. 022 × 10^23 molecules/mol
Ede4ka [16]

3.74×10^{21}

3.74 ×10^{21} molecules of propane were in the erlenmeyer flask.

number of moles of propane can be calculated as moles of propane.

mass of propane =  0.274 g

molar mass of propane = 44.1

So this gives us the value of 6.21×10^{-3} moles of propane

No one mole of propane As a 6.0-2 × 10^{23}

so, 6.21 ×10^{-3} × 6. 022 × 10^23

= 3.74 ×10^{21}

Therefore, molecules of propane were in the erlenmeyer flask is found to be 3.74 ×10^{21}

<h3>What is erlenmeyer flask?</h3>
  • A laboratory flask with a flat bottom, a conical body, and a cylindrical neck is known as an Erlenmeyer flask, sometimes known as a conical flask or a titration flask.
  • It bears the name Emil Erlenmeyer after the German chemist.

<h3>What purpose does an Erlenmeyer flask serve?</h3>
  • Liquids are contained in Erlenmeyer flasks, which are also used for mixing, heating, chilling, incubating, filtering, storing, and other liquid-handling procedures.
  • For titrations and boiling liquids, their sloped sides and small necks make it possible to whirl the contents without worrying about spills.

To learn more about calculating total molecules visit:

brainly.com/question/8933381

#SPJ4

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