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The reaction is :-
2C2H6 + 7O2 ----------> 4CO2 + 6H2O
When one mole ethane is combusted 7/2 moles of oxygen are used.
When 3 moles of ethane are combusted 3 x 7/2 moles of oxygen used.
No. of oxygen molecules consumed =6.022 x 1023 x7/2= 21.077 x 1023=2.107 x 1024 molecules.
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How many Na2SO4 molecules are present in 1.125 moles?
1,125 moles of sodium sulfate contain 6,774908464125.10e23 molecules.
How many moles present 2.45x1023 molecules of CH2?
2.45 X 1023 molecules CH2 (1 mole CH2/6.022 X 1023)= 0.407 moles CH2============
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There are 1.28x10^24 molecules of SF4. 2.13 mol * 6.022x10^23 molecules/mol = 1.28x10^24 molecules.
How many moles of water H2O contain 2.0X1022 molecules of water?
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How many moles are in 1000000000 molecules of H202?
The equivalent is 1,6.10e-15 moles.
How many Na2SO4 molecules are present in 1.125 moles?
1,125 moles of sodium sulfate contain 6,774908464125.10e23 molecules.
How many molecules of ammonia NH3 are present in 0.522 moles of ammonia?
0,522 moles of ammonia contain 3,143.10e23 molecules of NH3.
How many moles are present in 1.21 molecules of HBr?
2.01 mol
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The answer is 15 moles.
How many moles of N2O molecules are present in a sample that contains 5.23 moles of nitrogen atoms?
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Formaldehyde has the formula CH2O. How many molecules are there in 0.11 g of formaldehyde?
First calculate the moles of methanal(formaldehyde) moles(HCHO)= 0.11 / (30; Mr of ethanal) = 0.0036666... Remember the Avogadro Number. (6.022 x 10^(23)) is the number of molecules/atoms in ONE mole . Hence in 0.0036666 moles there are 0.0036666... X 6.022 x 10(23) = 2.20806 x 10^(21) molecules in 0.11 g of methanal. NB ; In modern IUPAC chemical nomenclature formaldehyde is named as METHANAL. NNB Note the 'A' instead 'o' in the name, NNNB The aldehyde formula is written as HCHO ; ( Ethanal would be CH3CHO). The arrangement of the letters in the formula is XCHO Hope that helps!!!!
How many moles of water molecules H2O are present in a 27 gram sample of water?
There are 1.5 moles water in 27 grams
How many moles present 2.45x1023 molecules of CH2?
2.45 X 1023 molecules CH2 (1 mole CH2/6.022 X 1023)= 0.407 moles CH2============
How many molecules of sulfur tetrafluoride are present in 2.13 moles of this compound?
There are 1.28x10^24 molecules of SF4. 2.13 mol * 6.022x10^23 molecules/mol = 1.28x10^24 molecules.
How many moles are in 4.651024 molecules of NO2?
4.651024 molecules of NO2 equals 7,721 moles.
How many molecules are in 23.0 moles in oxygen?
23 moles of oxygen contain 138,509.10e23 molecules.
How many molecules of H2 are present in 0.175 moles of H2?
0.175 X Avogadro's Number = about 1.05 X 1023.
