Write balanced equation, and you basically will get your answer, i.e. if it is 2 moles of ethane reacting with 3 moles of oxygen, then you divide both by 2, to get 1 mole of ethane reacting with 1.5 moles of oxygen, and the other parts of the question is similar approach.Can I've some help with this question?
Ethane (C2H6) burns in oxygen to form carbon dioxide (CO2) and water. How many moles of oxygen are needed to react with one mole of ethane? How many moles of: i) CO2 ii) H20 are produced?
molar heat of solution = -44.5kJ/mol = -44500J/molThe molar heat of solution of sodium hydroxide is -44.5 kJ.mol^-1. Paula has 200ml of water. Assuming that all the heat produced by the dissolution of the sodium hydroxide heats the water, what mass of sodium hydroxide does she need to add to increase the temperature by 6 degrees centigrade?
^Can I've some help with this question please? c:
Hint: find the limiting reagent.Desperate help please.
A 100ml solution of 0.85mol/L lead nitrate is mixed with a 65ml solution of 0.5mol/L aluminium sulfate. Calculate the mass of lead sulfate you would expect to form
Pb(NO3)2 + Al2(sO4)3 ---> PbSO4 + Al(NO3)3
3 1 3 2
Thats my mole ratio balanced with the numbers underneath it (correct me if im wrong)
So first i tried finding out the moles of Pb(NO3)2 which is (correct me if im wrong):
0.1 x 0.85 = 0.085
Then i tried finding out the moles of Al2(SO4)3 which is (correct me if im wrong):
0.5 x 0.065= 0.0325
Now this is where im stuck, please help D: