Thank you in advance for the help!
2007-01-25 13:28:59 · 7 answers · asked by Random G 3 in Science & Mathematics ➔ Chemistry
Ok,
MW Carbon = 12.01g/mol
MW Oxygen = 16.00g/mol
MW CO2 = 12.01 + (16 x 2) = 44.01
You have 274.7g of CO2, so you have 274.7/44.01
= 6.24mol
Since you have 6.24mol CO2, and that means 1 mol C and 2 mol O for each mol of CO2, you have:
6.24mol C
2007-01-25 13:44:11 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Easy the molecular weight of carbon dioxidE CO2 = 12+2*16=44g
So your answer 274.7/44 = 6.243 moles
2007-01-25 21:19:41 · answer #2 · answered by maussy 7 · 0⤊ 0⤋
Chemistry homework, eh?
Well, first off, you need to know that a mole of a substance is its mass of 6.022x10^23 atoms. Knowing this, you can glance at a Periodic Table and observe the atomic masses. The chemical formula for carbon dioxide is, of course, CO2. Since the ratio is 2 oxygen atoms per carbon atom, you will have twice as many O atoms as C atoms. Use algebra to construct the equation as follows: 2(15.999x) + 12.011y = 274.7
Minimize down to one variable for the equation (preferably y--this represents moles of carbon.) This should get you your answer. Good luck!
2007-01-25 13:50:02 · answer #3 · answered by sooner_touchdown 1 · 0⤊ 0⤋
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2016-05-16 15:50:17 · answer #4 · answered by Anonymous · 0⤊ 0⤋
274.7 grams / 44 = 6.243 moles.
C:CO2 = 1 is to 1 mole ratio.
2007-01-25 13:36:49 · answer #5 · answered by jaygee 2 · 0⤊ 0⤋
Molar mass of CO2 = 44.011grams/mole
274.7g CO2 x (1mol CO2/44.011 g CO2) x (1 mol C/ 1 mol CO2)
=6.241 mol C
2007-01-25 13:42:14 · answer #6 · answered by Ruiz 2 · 0⤊ 0⤋
Well, lets see, the molar mass of carbon dioxide (CO2) is:
44.0095 g/mol, so 274.7 grams of it would be:
274.7 g / 44.0095 g/mol = 6.24 mol
2007-01-25 13:36:43 · answer #7 · answered by Daremo 3 · 0⤊ 0⤋