If 5.0 moles of propane react, how many molecules of water will be formed? A.3.0x10.24 B.4.8x10.24 c.1.2x10.25
C3H8+5O2---->3CO2+4H2O
Write the balanced equation. I will be happy to critique your work.
If 5.0 moles of propane react, how many molecules of water will be formed?
To determine the number of molecules of water formed when 5.0 moles of propane react, you need to use the balanced chemical equation for the combustion of propane and apply the concept of mole-to-mole ratios.
The balanced chemical equation for the combustion of propane is:
C3H8 + 5O2 → 3CO2 + 4H2O
From the equation, you can see that for every molecule of propane (C3H8) that reacts, 4 molecules of water (H2O) are formed.
Now, to find the number of molecules of water formed, we need to convert the given amount of moles of propane to moles of water using the mole-to-mole ratio:
5.0 moles of propane x (4 moles of water / 1 mole of propane) = 20.0 moles of water
Next, we need to convert the calculated moles of water to molecules of water.
1 mole of any substance contains 6.022 × 10^23 molecules according to Avogadro's number. Therefore:
20.0 moles of water x (6.022 × 10^23 molecules of water / 1 mole of water) = 1.2044 × 10^25 molecules of water
So, the correct option is c. 1.2 × 10^25 molecules of water.
Which shows that for each mole of propane, one gets 4 moles of water.
You have 5 moles of propane, so you get xxx moles of water.
For each mole of water, you have avagradro's number of molecules. So you have YYYY molecules of water.