For the reation: C3H8+5 02 =3 CO2+4 H2O
How many moles of C3H8 are needed to make 3.60 grams of H2O? I think the ans is 44.8molesc3h8
No. That isn't right.
Convert 3.60 g H2O to moles, convert that to moles C3H8.
is the ans 0.05 moles of C3H8?
To find the number of moles of C3H8 needed to produce 3.60 grams of H2O, we need to use stoichiometry.
First, let's determine the molar mass of H2O. The molar mass of H2O is 18.015 g/mol (2 hydrogen atoms weighing 1.008 g/mol each, and 1 oxygen atom weighing 16.00 g/mol).
Next, let's calculate the number of moles of H2O using the given mass:
moles of H2O = mass of H2O / molar mass of H2O
moles of H2O = 3.60 g / 18.015 g/mol = 0.1999 ≈ 0.200 moles of H2O
Now, according to the balanced equation C3H8 + 5 O2 = 3 CO2 + 4 H2O, the ratio between the moles of C3H8 and H2O is 1:4. This means that for every 4 moles of H2O formed, we need 1 mole of C3H8.
So, to determine the number of moles of C3H8 needed, we can set up the following ratio:
moles of C3H8 / moles of H2O = 1 / 4
Simplifying, we have:
moles of C3H8 = (moles of H2O) x (1 / 4)
moles of C3H8 = 0.200 moles of H2O x (1 / 4) = 0.050 moles of C3H8
Therefore, the number of moles of C3H8 needed to produce 3.60 grams of H2O is approximately 0.050 moles, not 44.8 moles.