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How many moles of oxygen atoms are present in a 254 g sample of CO2?
Wiki User
∙ 9y ago
Use dimensional analysis to solve this problem. First calculate the molecular mass of CO2. This is found by (use a Periodic Table) adding 12.011g of C to (15.999g x2) grams of Oxygen. Once you do that, you find out that 44.009g are in 1 mole of CO2. Now, simply by looking at the equation of CO2, we can tell that 2 moles of oxygen atoms are in 1 mole of Co2 (look at the subscript for Oxygen). Now, your dimensional analysis should look like this:
254g CO2 x 1 mole CO2/44.009g CO2 x 2 mole Oxygen/1 mole CO2
The answer is 11.5 moles of Oxygen in 254g of CO2.
Wiki User
∙ 9y ago
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3KNO3, so 9 oxygen atoms.
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The answer is 6,31 moles Ag.
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five
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5,26 moles of oxygen contain 31,676.10e23 atoms.
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There is 25.0 moles Oxygen
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4 moles of oxygen atoms are present in 4 moles of H2O
How many oxygen atoms are present in a 14.0 g sample of Cu(NO3)2?
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How many oxygen atoms are present in 3 moles of potassium nitrate?
3KNO3, so 9 oxygen atoms.
How many moles of oxygen atoms are present in 5.00 moles of diphosphorous pentoxide?
Diphosphorus pentoxide has 5 oxygen atoms per molecule according to the given prefix. So, 5 moles of it will be 5 x 5 x (6.022x10^23) = 1.51x10^25 oxygen atoms.
How many individual oxygen atoms are present in 20 moles of oxygen gas?
20 x 2 x 6.022x1023 = 2.409x1025 atoms of oxygen
How many moles of silver (Ag) are present in a sample of 3.8 10 to the power of twenty four atoms Ag?
The answer is 6,31 moles Ag.
How many moles of oxygen atoms are present in 5.50 mol of diphosphorus pentoxide?
five
How many moles are present in a sample of 3.2x10 atoms of nickel?
A sample of 3,2x10 atoms of nickel is equal to 0,53.10e-23 moles.
How many atoms are contained in 5.26 moles of oxygen?
5,26 moles of oxygen contain 31,676.10e23 atoms.
How many moles of sulfur are contained in a sample of CuSO4 that also contains 3.50 x 1023 oxygen atoms?
1
How mony moles of oxygen atoms do 1.5 moles of Co2 contain?
0.75 moles of any substance is 0.75(6.02x1023) = 4.52x1023 particles. If those particles are CO2 molecules, and each molecule has 2 oxygen atoms, then it's 2(4.52x1023) = 9.04x1023 oxygen atoms.
