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SOVA2 [1]
3 years ago
12

All airplanes have mass; therefore, what force pulls them toward the ground?

Chemistry
1 answer:
Marina86 [1]3 years ago
7 0

Answer:

B. Gravity

Explanation:

Gravity pulls stuff down

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If oxygen has a molar mass of 16.0 g/mole, carbon has a molar mass of 12.0 g/mole and hydrogen has a molar mass of 1.01 g/mole,
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The number of mole of ethanol present in the beaker is 0.217 mole

Description of mole
The mole of a substance is related to it's mass and molar mass according to the following equation:
Mole = mass / molar mass

How to determine the mole of C₂H₅OH
From the question given above, the following data were obtained:
Mass of C₂H₅OH = 10 g
Molar mass of C₂H₅OH = (12×2) + (1.01×5) + 16 + 1.01 = 46.06 g/mol
Mole of C₂H₅OH =?

Mole = mass / molar mass
Mole of C₂H₅OH = 10 / 46.06
Mole of C₂H₅OH = 0.217 mole


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brainly.com/question/13314627

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2 years ago
What is the capacity to do work known as?
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