The conversion factor from compound to element is actually
just based on the number of elements in the compound itself.
From the compound C12H22O11, we can say that there are 12
C, 22 H and 11 O, therefore the conversion factors are:
1 mol C12H22O11=12
moles of C
1 mol C12H22O11=22
moles of H
1 mol C12H22O11= 11 moles of O
Answer:
i think this would be an example of a physical change because here the substance is changing directly from a solid to a gas without passing through the liquid state which means that the composition of the substance has not changed and remains the same. This is also called sublimation.
Answer:
Explanation:
Here, we want to write the chemical reaction
step 1:
we start by writing the reaction between iron and oxygen
We have this as:
step 2:
Now, we want to predict the product as follows:
step 3:
We proceed to balance the chemical reaction as follows by ensuring that the number of elements moles on the reactant side is equal to the number of moles of the elements on the products side as follows:
N2 + 3 H2 >> 2 NH3
moles NH3 = 11.50 g /17.0307 g/mol=0.6753
the ratio between H2 and NH3 is 3 : 2
moles H2 needed = 0.6753 x 3/2 =1.013
mass H2 = 1.013 mol x 2.106 g/mol=2.042 g
