Chemistry High School

37.2 moles of hydrogen gas would have what mass?
Your answer

37.2 Moles Of Hydrogen Gas Would Have What Mass?Your Answer

Answers

Answer 1

Answer:

74.99g

Explanation:

Mass of a substance can be calculated by using the formula;

mole = mass ÷ molar mass

mass = molar mass × mole

According to this question, 37.2 moles of hydrogen gas is given.

Molar mass of hydrogen gas (H2) = 1.008(2) = 2.016g/mol

mass = 2.016 × 37.2

Mass of H2 = 74.995

Mass = 74.99g

Related Questions

__M+__Q2----->___MQ3

Answers

Answer: 2M + 3Q2 -----> 2MQ3

Explanation:

2 Ms either side, and 6 Qs either side

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If the speed of a wave is 150 m/s and its frequency is 2 Hz, what is its wavelength?

A. 300m
B. 75m
C. 152m
D. 148m

Answers

Answer:

75m

Explanation:

Which reaction type is really part of another type of reaction but treated separately? Explain

Answers

Answer:

Oxidation - reduction reaction which is called redox reaction.

Explanation:

The type of reaction that is a part of another type but treated separately is called Oxidation - reduction reaction.

Thus is because they usually involve 2 separate half reactions which are oxidation reactions that involve loss of electrons and then reduction equations which involve gain of electrons.

They are treated separately for example when sodium reacts with chlorine to form sodium chloride.

2Na + Cl2 = 2NaCl

Now, sodium undergoes oxidation by loosing elctrons and it's half reaction is;

2Na → 2Na​^(+) + 2e^(-)

​​Meanwhile chlorine undergoes reduction by gaining electrons and its half reaction is;

Cl2 + 2e^(-) → 2Cl^(-)

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