Answer:
Explanation:
Hello,
In this case, given the rate constant, we infer this is about a second order reaction, whose equation is:
Thus, by integration we obtain:
Hence, we solve for the final concentration after 0.385 s:
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Answer:
the amount of orbitals per period (row) will cause the difference between elements higher or lower on the periodic table.
Explanation:
a p e x
Carbon has 6 protons, that's why its atomic number is 6
Answer:
Explanation:
Hello,
In this case, for the given reaction, the equilibrium constant turns out:
Nonetheless, we are asked for the reverse equilibrium constant that is:
Which is greater than one.
In such a way, the Gibbs free energy turns out:
Now, since the reverse equilibrium constant is greater than zero its natural logarithm is positive, therefore with the initial minus, the Gibbs free energy is less than zero, that is, negative.
Answer:
Explanation:
H₂CO₃(aq) + H₂O(l) ↔ H₃O⁺(aq) + HCO₃⁻(aq)
Let d be the degree of dissociation
.02( 1-d ) .02d .02d
Dissociation constant Ka₁ is given
4.3 x 10⁻⁷ = .02d x .02d / .02( 1-d )
= .004 d² / .02 ( neglecting d in denominator )
= .02 d²
d² = 215 x 10⁻⁷
d = 4.636 x 10⁻³
= .004636
concentration of H₃O⁺
= d x .02
= .004636 x .02
= 9.272 x 10⁻⁵
pH = - log [ H₃O⁺ ]
= - log ( 9.272 x 10⁻⁵ )
5 - log 9.272
= 5 - .967
= 4.033 .