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Gas Stoichiometry
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1) In the following reaction for the Haber process where hydrogen and Nitrogen form ammonia, what is the subscript letter after the H on the right?
2 points
1
2
3
4
Clear selection
2) In the following reaction for the Haber process where hydrogen and Nitrogen form ammonia, what is the subscript letter after the N on the left?
2 points
1
2
3
4
Clear selection
3) In the following reaction for the Haber process where hydrogen and Nitrogen form ammonia, what is the subscript letter after the H on the left?
2 points
1
2
3
4
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4) We always write a subscript 2 after diatomic gases. In the Haber reaction which gases are diatomic?
2 points
H only
N only
Ammonia (NH3) only
N and H
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5) After we have added subscripts to our ammonia formula and to our diatomic gases, where now do we add numbers to balance our equation?
2 points
In front of atoms and molecules as coefficients only
we can add subscript wherever and whenever we want
behind atoms and molecules as coefficients only
in front of and behind atoms and molecules whenever and wherever we like.
Clear selection
6) Balancing equations is based on the law of conservation of matter. By this law...
2 points
We must have the same number of molecules on both sides of the equation.
We must have the same number of atoms of each kind on both sides of the equation.
We can end up with a greater mass of products than reactants.
Coefficients (numbers in front) must add up to the same on both sides of the equation.
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7) Here is the balanced reaction for the Haber Process. The ratio of volumes of gas used and formed is....
2 points
1:1:1
1:3:2
2:2:3
2:1
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8) Here is the balanced reaction for the Haber Process. 1 mole of nitrogen gas will use up...
2 points
1 mole of hydrogen gas
2 moles of hydrogen gas
3 moles of hydrogen gas
6 moles of hydrogen gas
Option 2
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9) Here is the balanced reaction for the Haber Process. 1 mole of nitrogen gas will use up...
2 points
3 x 22,4 dm3 of hydrogen gas
22,4 dm3 of hydrogen gas
6 x 22,4 dm3 of hydrogen gas
the same volume of gas as the nitrogen gas
Clear selection
10) If we start with 1 litre of nitrogen gas and 3 litres of hydrogen gas, then how many litres of ammonia gas will be formed at STP?
2 points
6 litres
3 litres
2 litres
4 litres
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11) Comparing one mole of nitrogen gas with one mole of hydrogen gas compared with one mole of ammonia gas...
2 points
1 mole of Hydrogen gas will have the smallest volume because it is the smallest atom
1 mole of hydrogen gas will have the biggest volume because it has the biggest coefficient.
1 mole of any gas has the same volume as one mole of any other gas. All have same volume
the volume of a mole of gas will depend on the number in front of it (its coefficient)
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