3 years ago

Balance this equation- Fe + O2 Fe3 O4

Chemistry

1 answer:

kherson [118]3 years ago

7 0

3Fe + 2O2 —- Fe3 + O4

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Ammonia gas has a molar mass of approximately 17 grams per mole. At 290k and 1.2 atm, a sample of ammonia has a volume of 3.7 L.

dlinn [17]

We have that for the Question, it can be said that the mass of Ammonia is

Mass_a=3.162grams

From the question we are told

Ammonia gas has a molar mass of approximately 17 grams per mole. At 290k and 1.2 atm, a sample of ammonia has a volume of 3.7 L. In three to five sentences, explain how you can find the mass of the ammonia. Then, given R= 0.0821L.atm/mol.k, calculate the mass.

Generally the equation for the is mathematically given as

$PV=nRT\\\\n=\frac{PV}{RT}\\\\n=0.186 moles\\\\$

Now the mass of ammonia is

$Mass_a=0.186*17\\\\Mass_a=3.162grams$

Hence the mass of Ammonia is

Mass_a=3.162grams

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The activation energy for the gas phase isomerization of cyclopropane is 272 kJ. (CH2)3CH3CH=CH2 The rate constant at 718 K is 2

MrMuchimi

The Arrhenius equation relates activation energy to reaction rates and temperature:
ln (k2 / k1) = (E / R) * (1/T1 - 1/T2), where E is activation energy of 272 kJ, R is the ideal gas constant (we use the units of 0.0083145 kJ/mol-K for consistency, to cancel out the kJ unit), we let T1 = 718 K and k1 = 2.30 x 10^-5, and T2 = 753 K and k2 be the unknown.
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