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How many C2H4 molecules are contained in 45.8 mg of C2H4?
To determine the number of molecules in 45.8 mg of C2H4, we first calculate the number of moles using the molar mass of C2H4 (28.05 g/mol). Then we use Avogadro's number (6.022 x 10^23 molecules/mol) to find the number of molecules, which is approximately 1.23 x 10^20 molecules.
Which reaction shows that the enthalpy of formation of C2H4 is Hf 52.5 kJ mol?
2C(s) + 2H2(g) + 52.5 kJ -> C2H4
How many molecules are present in 1296 g of dinitrogen pentoxide (N2O5)?
1296 g N2O5 x 1 mol N2O5/108 g x 6.02x10^23 molecules/mole = 7.22x10^24 molecules
How many molecules are contained in 1.20 mol O2?
The number of molecules is 7,2265690284.10e23.
How many molecules are in 6.30 mol CO2?
my Glizzy
How many grams of ethylene are needed to react with 0.132 mol of H20?
C2H4 + H2O --> C2H5OHReaction balanced at 1:1:1 mole of each compound, so you'll need 0.132 mol C2H4 and this is equal to:0.132 (mol C2H4) * 28 (g/mol C2H4) = 3.696 g C2H4 = 3.70 g C2H4
How many moles are present in 1.21 molecules of HBr?
2.01 mol
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.
What volume will 1.50 mol of C2H4 gas occupy at STP?
1 mole gas = 22.4L 1.5mol C2H4 x 22.4L/mol = 33.6L ethane gas (C2H4)
How many molecules of water can be produced by the reaction of 2.16 mol of oxygen with excess Ethylene.?
C2H4 + 3 O2 --> 2 CO2 + 2 H2OSo 2.16 mol O2 will produce 1.44 mol H2O(and 1.44 mol CO2)because 3:2 = 2.16 : 1.44
How many molecules OS CO2 are present in 51.5 of CO2?
2.65 mol * 64.07 g/mol = 169.79 g
How many Molecules are contained in 0.900 mol O2?
5.418E23 molecules
How many molecules are present in 13.77lb of magnesium bromide?
? molc' MgBr2 = (13.77lbs)(453.59g/1lbs)(1 mol/184.11g)(6.02e23 molc'/1 mol) 13.77 lbs =2.04e25 molecules
How many molecules of nitrogen trifluoride are present in 4.91 moles of nitrogen trifluoride?
4.91 mol * 6.02214129(27)×1023 / mol = 2.96 ×1024
How many molecules are there in 1.00 mol of H2O2?
There are 6.022x10^23 molecules in 1.00 mol of anything.
How many molecules of ethane are present in 0.334 grams of ethane?
To find the number of molecules of ethane in 0.334 grams, you would first convert the mass to moles using the molar mass of ethane. Then, you can use Avogadro's number (6.022 x 10^23 molecules/mol) to find the number of molecules in that number of moles.
Which reaction shows that the enthalpy of formation of C2H4 is Hf 52.5 kJ mol?
2C(s) + 2H2(g) + 52.5 kJ -> C2H4
