Answer:
2 moles of NO
Explanation:
Our reaction is:
4NH₃ + 5O₂ → 6H₂O + 4NO
4 moles of ammonia react to 5 moles of oxygen in order to produce 6 moles of water and 4 moles of NO
We need to determine the limiting reactant:
Ratio is 4:5, As 4 moles of ammonia react to 5 moles of oxygen and we have 4 moles, we definetely need 5 moles, but the problem is, we only have 2.5 moles of O₂. Oxygen is the limting reagent.
5 moles of O₂ produce 4 moles of NO, according to stoichiometry
2.5 moles of O₂ may produce (2.5 . 4) / 5 = 2 moles of NO
Tha atomic number of an atom that has 3 protons and 4 neutrons is 3. It's the lithium
Answer:
176g
Explanation:
To appropriately answer this question, we will need to write a complete chemical equation . Firstly what do we know? We know that the molecule given in the question is a hydrocarbon and it burns in oxygen to form carbon iv oxide and water. The reaction equation is written below:
C3H8(g)+5O2(g) --> 3CO2(g)+4H2O(g)
From the equation, we can see that one mole of propane needed 5 moles of oxygen for complete combustion. This is the theoretical relation. Let us find the actual number of moles of propane that burned.
To calculate this, what we simply do is to disburse the mass of propane by the molar mass of propane. The molar mass of propane here is 3(12) + 8(1) = 36 + 8 = 44g/mol
The number of moles of propane is thus = 48.5/44 = 1.102 moles.
Now since one mole of propane needed 5 moles of oxygen , this means 1.102 moles of propane will need 5 * 1.102 moles of oxygen = 5.5 moles
We then proceed to calculate the mass of oxygen gas needed.
The mass of oxygen gas needed equals the number of moles multiplied by the molecular mass of the oxygen molecule. The molecular mass of the oxygen molecule is 2(16) = 32g/mol
The mass needed is thus 5.5 * 32 = 176g
Answer:
1. electron cloud
2. 47 electrons
3. 8
4. 16
5. electrons enter orbitals of lowest energy first
6. the 2s orbital is at a higher energy level
Hope this helps!
Answer:D. In order to restore equilibrium, the reaction shifts right, towards products
Explanation:
