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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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How many oxygen atoms are present in 3 moles of potassium nitrate?
3KNO3, so 9 oxygen atoms.
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five
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There are 6 oxygen atoms present in one formula unit of Cu(NO3)2. To find the number of oxygen atoms in a 14.0 g sample, you would need to calculate the number of formula units in 14.0 g of Cu(NO3)2. Then, multiply that by 6 to find the total number of oxygen atoms in the sample.
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What is the total number of moles of atoms present in 1 mole of Ca3(PO4)2?
five
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?
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How many moles of oxygen atoms are present in 5.00mol of diphosphorus pentoxide P2O5?
In one molecule of diphosphorus pentoxide (P2O5), there are 5 oxygen atoms. So, in 5.00 mol of P2O5, there would be 5.00 mol * 5 = 25.00 moles of 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 N2O molecules are present in a sample that contains 5.23 moles of nitrogen atoms?
Since each N2O molecule contains 2 nitrogen atoms, the number of moles of N2O molecules would be half of the moles of nitrogen atoms. Therefore, in this case, there would be 2.615 moles of N2O molecules present in the sample.
How many moles of sulfur are contained in a sample of CuSO4 that also contains 3.50 x 1023 oxygen atoms?
To find the number of moles of sulfur in the sample of CuSO4, we first need to determine the molar ratio of sulfur to oxygen in CuSO4. The formula for CuSO4 shows that there is one sulfur atom for every four oxygen atoms. Since 3.50 x 10^23 oxygen atoms are present, there would be 3.50 x 10^23 / 4 = 8.75 x 10^22 sulfur atoms. This is equivalent to 8.75 x 10^22 moles of sulfur.
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
If 3.50 of the unknown compound contained 0.117 of C and 0.233 of H how many moles of oxygen were in the sample?
To find the moles of oxygen in the compound, first calculate the moles of carbon and hydrogen using their respective molar masses. Then, subtract these totals from the total moles present in the compound to find the moles of oxygen.
