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Fantom [35]
3 years ago
7

79. Methane, the chief component of natural gas, burns in oxygen according to the equation

Chemistry
1 answer:
Andrews [41]3 years ago
6 0

Answer:

14 mol

Explanation:

                                CH4(g) + 2O2(g) -------» CO2(g) + 2H2O(g)

from reaction          1 mol                                                2 mol

given                       7 mol                                                x mol

x = (7*2)/1 = 14 mol

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Which statement defines dynamic equilibrium? (5 points)
Shalnov [3]

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1. A state of balance in which the rates of the forward and reverse reactions are equal.

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3 years ago
The base-dissociation constant, kb, for pyridine, c5h5n, is 1.4x10-9 the acid-dissociation constant, ka, for the pyridinium ion,
sp2606 [1]
We are given the base dissociation constant, Kb, for Pyridine (C5H5N) which is 1.4x10^-9. The acid dissociation constant, Ka for the Pyridium ion or the conjugate acid of Pyridine is to be determined. We know from our chemistry classes that:

Kw = Kb * Ka

where Kw is always equal to 1x10^-14

so, to solve for Ka of Pyridium ion, substitute Kb to the equation together with Kw and solve for Ka:

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solve for Ka

Ka = 7.14x10^-6 

Therefore, the acid dissociation constant of Pyridinium ion is 7.14x10^-6.
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