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True [87]
2 years ago
11

How many moles of hydrogen gas would be required to produce 25 moles of H2O?

Chemistry
1 answer:
OverLord2011 [107]2 years ago
5 0

Answer:

There would be 25 moles

Explanation:

This is the equation for water (synthesis):

2H₂   +   O₂   →    2H₂O

Since there are 25 moles of water, the moles of hydrogen gas will have 25 moles.

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3 years ago
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AVprozaik [17]

Answer: The pressure of the He is 2.97 atm

Explanation:

According to Dalton's law, the total pressure is the sum of individual pressures.

p_{total}=p_{N_2}+p_{O_2}+p_{He}.

Given : p_{total} =total pressure of gases = 6.50 atm

p_{N_2} = partial pressure of Nitrogen = 1.23 atm

p_{O_2} = partial pressure of oxygen = 2.3 atm

p_{He} = partial pressure of Helium = ?

putting in the values we get:

6.50atm=1.23atm+2.3atm+p_{He}  

p_{He}=2.97atm

The pressure of the He is 2.97 atm

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3 years ago
The blank of an element is the average mass of all isotopes of that element
Oxana [17]
Atomic mass is the answer 

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3 years ago
List the elements and the amounts of each element below for 5 Li2S04.​
GREYUIT [131]

Answer:

Lithium has 5 elements, sulphur has 2 elements and oxygen has 4 elements

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