Calculate the number of moles of O2 that are consumed in the equation C3H4 plus 4O2 equals 3CO2 plus 2H2O please...?

Answer 1

The reaction equation is: C2H5OH + 3 O2 = 2 CO2 + 3 H2O. Therefore, the ratio of moles of O2 to moles of C2H5OH is 3, and 3 X 1.3 = 3.9 moles of O2 are required. The molecular mass of O2 is about 32, so that 3.9 X 32 = 125 grams of oxygen.

Answer 2

We need to balance the equation.

2S + 3O2 >> 2SO3 Now the limiting reactant is found.

3.37 mol S ( 3mol O2/2mol S ) = 5.06 mol, and we do not have that much sulfur, so sulfur limits the reaction.

3.37 mol S (2 mol SO3/2 mol S ) = 3.37 mol SO3 produced.

Answer 3

To determine the number of molecules of a substance, we can use Avogadro's number, which states that in every mole of a substance, there are 6.022 x 10^22 particles, or in this case molecules. This can be rewritten as the ratio: 1 mol / 6.022 x 10^22 molecules.

This problem is deceptively tricky: you might think that given 3 moles oxygen, we can just write it as 3 mol O. However, it is important to note that oxygen naturally exists as O2. So, we have to convert what's given into moles of O

3.00 mol O2 x 2 mol O = 6.00 mol O

1 mol O2

In this problem, we want to cancel out the mol unit in the numerator. We can flip the ratio above to make it 6.022 x 10^23 molecules/1 mol

6.00 mol O x 6.022x10^22 molecules O = 3.61x10^22 molecules O

1 mol O

Answer 4

The answer is 0.34567934 X 2.455 - one gorilla

Answer 5

The number of moles of O2 is 4.

Answer 6

40 mole