the number of moles of O2 needed to produce 14.2g of P4O10 from P?
How many moles of P4O10 is in 14.2 grams?
Of that, wouldnt 10/14 of that be O, and 5/14 of that O2?
Check my thinking.
there is .05 moles of P4O10 in 4.2 g, so then there will be 5/14 of O2, right? but wouldn't the ratio be 5 to 2? I'm confused :(
No the ratio of O2 to P is 5:4 Balance the reaction equation of P and O2 to verify.
so the answer would be .0625 mol of O2, right?
To find the number of moles of O2 needed to produce 14.2g of P4O10 from P, we need to balance the chemical equation and use stoichiometry.
The balanced chemical equation for the reaction is:
4P + 5O2 -> P4O10
From the equation, we can see that for every 4 moles of P, we need 5 moles of O2 to produce 1 mole of P4O10.
To calculate the number of moles of O2 needed, we can follow these steps:
Step 1: Convert the given mass of P4O10 to moles.
The molar mass of P4O10 can be obtained by adding the atomic masses of the constituent atoms:
P: 4 * atomic mass of P
O: 10 * atomic mass of O
Step 2: Use the balanced equation to determine the stoichiometry between P4O10 and O2.
From the balanced equation, we know that for every 1 mole of P4O10, 5 moles of O2 are required.
Step 3: Apply stoichiometry to calculate the number of moles of O2.
Multiply the number of moles of P4O10 (calculated in step 1) by the stoichiometric ratio obtained from the balanced equation (step 2) to find the number of moles of O2.
Let's work through the calculations:
Step 1: Calculate the molar mass of P4O10.
The atomic mass of P is 31.0 g/mol, and the atomic mass of O is 16.0 g/mol.
Molar mass of P4O10 = (4 * 31.0) + (10 * 16.0) g/mol
Step 2: Determine the stoichiometric ratio between P4O10 and O2.
From the balanced equation, we know that 1 mole of P4O10 requires 5 moles of O2.
Step 3: Apply stoichiometry to calculate the number of moles of O2.
Number of moles of O2 = (mass of P4O10 / molar mass of P4O10) * stoichiometric ratio
Substitute the given mass of P4O10 (14.2g) into the formula:
Number of moles of O2 = (14.2 g / molar mass of P4O10) * 5
Finally, perform the calculations to find the number of moles of O2 needed.