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How many moles of ammonia can be made if 7.5 moles of hydrogen react with enough nitrogen?
Wiki User
∙ 12y ago
First, balance the equation to get your proper molar ratios:
N2 + 3H2 --> 2NH3
Now, plug in 7.5 moles of H2 instead of the coefficient of 3. A direct proportion may help:
3/2=7.5/x, solve for x to get 5 moles of NH3.
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoThe equation for the reaction of nitrogen and hydrogen to form ammonia is N2 + 3 H2 -> 2 NH3. This equation shows that each mole of ammonia requires 3/2 mole of H2. The gram molecular mass of H2 is 2.016. Therefore, 7.5 gm of hydrogen corresponds to 7.5/2.016 or 3.7 moles, to the justified number of significant digits. This will make 3.7(2/3) or 2.47 moles of ammonia. The last digit of the answer is depressed because it may not be accurate to + 1. (The datum 7.5 is given only to two significant digits.)
Wiki User
∙ 9y agoSteps to get the right answer
1. Look at the equation
2. The question is asking for how many moles of N2 reacted!
3. So that means you should look to start with 0.75moleNH3
4. You would want the NH3 to cancel so you look back at the equation and find that 2 is in front of NH3 to balance the equation.
5. What you should have now:
[0.75mole NH3/2molesNH3]
6.Then you look back at the question again and find that it wants N2 *reminder!
7. So then look back at the equation and find that there is a 1 in front of N2.
8. After you cancel out the NH3 you dividing 0.75 and 2(NH3 Cancels)
9. Then you should be left with the answer 0.375 mol N2
Wiki User
∙ 12y agoEnough nitrogen means equal or in excess, so.....
3H2 + N2 -> 2NH3
7.5 mole hydrogen gas (2 mole NH3/3 moles H2)
= 5.0 mole ammonia made
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Wiki User
∙ 6y agoWrite the balanced equation: N2 + 3H2 ==> 2NH3 7.9 moles N2 x 2 moles NH3/1 mole N2 = 15.8 moles NH3 formed (assuming H2 isn't limiting).
Corrected for 2 significant figures, answer would be 16 moles
Wiki User
∙ 9y agoMolecular mass of NH3 is 17.So there are 4.5588mol.
Wiki User
∙ 12y ago3.81 mol
Wiki User
∙ 10y ago9
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How many moles of nitrogen and hydrogen are needed to get 10 moles of ammonia?
The reaction of nitrogen with hydrogen to form ammonia is: N2 +3H2 = 2NH3 Therefore to make 10 moles of ammonia you need 5 moles N2 and 15 moles H2
How many moles of ammonia are produced from 12.0 moles of hydrogen?
N2 + 3H2 -----> 2NH3 so 3 moles of hydrogen produce 2 moles of ammonia. Therefore 12.0 moles of hydrogen will produce 8 moles of ammonia.
How many moles of ammonia are produced when 6 mol of hydrogen gas react with an excess of nitrogen gas?
3H2 + N2 <------> 2NH3 is the balanced equation for Hydrogen and Nitrogen making ammonia. 3 moles of H2 produces two moles of ammonia and thus to make 6 moles requires 9 moles of Hydrogen.
How many molecules of ammonia can be formed from the reaction of 2 molecules of Nitrogen gas and 6 molecules of hydrogen gas?
The chemical equation is N2 + 3H2 -> 2NH3 So reacting 2 moles of N2 will produce 4 moles ammonia.
How many moles of ammonia gas are produced by the reaction of 3 mole of nitrogen gas with excess hydrogen gas N2 H2 ---- NH3?
N2 + 3H2 --> 2NH3 You have been told, indirectly, that nitrogen limits and will drive the reaction. 3 moles N2 (2 moles NH3/1 mole N2) = 6 moles ammonia gas produced ========================
How many moles of nitrogen and hydrogen are needed to get 10 moles of ammonia?
The reaction of nitrogen with hydrogen to form ammonia is: N2 +3H2 = 2NH3 Therefore to make 10 moles of ammonia you need 5 moles N2 and 15 moles H2
How many moles of ammonia are needed to produce 3.5 mole of nitrogen?
That amount of ammonia contains two moles of hydrogen gas. One mole of hydrogen gas weighs 2.016 grams. Therfore 3.75 grams of ammonia contains two moles of hydrogen.
How many moles of nitrogen are required to react with 3.4 moles of hydrogen to form ammonia feterlizer?
To form ammonia, reaction is N(2) + 3H(2) ---> 2NH(3) + H(2)O. As you can see for 1 mole of nitrogen three moles of hydrogen is required. Hence for your question, 1.13 moles nitrogen is required.
If .3 mole of N2 are reacted with .6 mole of H2 what mass of NH3 could form the formula N2 plus 3 H2 makes 2 NH3 The answer to the problem is 6.8 but don't know how to get that?
First you have to find the limiting reactant. You have .3 moles of nitrogen and .6 moles of hydrogen, but you don't know which one is going to run out first.In any of these stoichiometry problems, you need to write down the formula:N2 + 3H2 → 2NH3Take both nitrogen and hydrogen and figure out how much ammonia is made alone..6 moles Hydrogen ÷ 3 moles hydrogen × 2 moles ammonia = .4 moles ammonia made.3 moles Nitrogen ÷ 1 mole nitrogen × 2 mole ammonia = .6 moles ammonia madeNow you figured out that hydrogen is the limiting reactant and the nitrogen is the excess because less ammonia is made using hydrogen. This measurement is what you will be using for the rest of the problem.Take the limiting reactant and use stoichiometry to find how much ammonia can be made.You could start with .6 moles of hydrogen and do the same conversion as above, but add the step of converting to grams. Or, since you already found out that .4 moles ammonia is made, just convert it to grams. The molecular mass of ammonia is 17.0 grams..4 moles ammonia × 17.0 grams = 6.8 grams ammonia
How many moles of ammonia are produced from 12.0 moles of hydrogen?
N2 + 3H2 -----> 2NH3 so 3 moles of hydrogen produce 2 moles of ammonia. Therefore 12.0 moles of hydrogen will produce 8 moles of ammonia.
How many moles of nitrogen are needed to convert 9.0 mole hydrogen gas to ammonia gas?
To form ammonia, balanced reaction is N(2) + 3H(2) ---> 2NH(3) + H(2)O. As you can see for 1 mole of nitrogen three moles of hydrogen is required. Hence for your question, 3 moles nitrogen is required to satisfy the ratio.
How many moles of ammonia are produced when 6 mol of hydrogen gas react with an excess of nitrogen gas?
3H2 + N2 <------> 2NH3 is the balanced equation for Hydrogen and Nitrogen making ammonia. 3 moles of H2 produces two moles of ammonia and thus to make 6 moles requires 9 moles of Hydrogen.
How many moles of ammonia are produced from the reaction of 90.0 L of nitrogen?
8,038 moles of ammonia were produced.
How many moles of nitrogen are required to convert 9 mol hydrogen gas to ammonia gas?
9H2 + 3N2 ------> 6NH3 3 moles of N2 would be required.
How many moles of NH3 are produced when 1.2 mol of H2 reacts?
How many moles of NH3 are produced when 1.2 mol of nitrogen reacts with hydrogen?
How many moles of nitrogen would be needed to completely react with 12 moles of hydrogen according to the balanced equation given below?
N2 + 3H2 -> 2NH3 3 moles hydrogen gas. You should know that because of the formula of ammonia.
How many molecules of ammonia can be formed from the reaction of 2 molecules of Nitrogen gas and 6 molecules of hydrogen gas?
The chemical equation is N2 + 3H2 -> 2NH3 So reacting 2 moles of N2 will produce 4 moles ammonia.
