what is the difference between aqueous hydrogen fluoride and hydrofluoric acid? do they have different formulas or are they just
1 answer:
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Answer:
Explanation:
To find the density of nitrogen gas at STP which is standard temperature and pressure, certain parameters must be known.
The mass of the gas must be given or its volume.
Density of a substance is the mass per unit area;
Volume of gas at STP = number of moles x 22.4
Using the volume obtained here,
Density =
Then we can find the density.
The mass is very important.
<u>Answer:</u> The total pressure in the flask is 8.0 atm
<u>Explanation:</u>
We are given:
Initial partial pressure of nitrogen gas = 6.0 atm
Initial partial pressure of hydrogen gas = 6.0 atm
The chemical equation for the reaction of nitrogen and hydrogen gas follows:
By Stoichiometry of the reaction:
3 atm of hydrogen gas reacts with 1 atm of nitrogen gas
So, 6.0 atm of hydrogen gas will react with = of nitrogen gas
As, given amount of nitrogen gas is more than the required amount. So, it is considered as an excess reagent.
Thus, hydrogen gas is considered as a limiting reagent because it limits the formation of product.
Pressure of nitrogen gas left = [6 - 2] = 4.0 atm
By Stoichiometry of the reaction:
3 atm of hydrogen gas produces 2 atm of ammonia gas
So, 6.0 atm of hydrogen gas will produce = of ammonia
Total pressure in the flask = [4 + 4] = 8.0 atm
Hence, the total pressure in the flask is 8.0 atm