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Andreas93 [3]
3 years ago
6

X-y = 3

Chemistry
1 answer:
kari74 [83]3 years ago
8 0

Answer:x=4 y=3

Explanation:4-3=1

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The value of ka for nitrous acid (hno2) at 25 ∘c is 4.5×10−4. what is the value of δg at 25 ∘c when [h+] = 5.9×10−2m , [no2-] =
LuckyWell [14K]
To get the value of ΔG we need to get first the value of ΔG°:

when ΔG° = - R*T*㏑K

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so by substitution:

∴ ΔG° = - 0.00831 * 298 K * ㏑4.5 x 10^-4

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when ΔG° = -19 KJ

and R is constant in KJ = 0.00831 

and T is the temperature in Kelvin = 298 K

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so, by substitution:

ΔG = -19 KJ - 0.00831 * 298K* ㏑(0.21/5.9x10^-2*6.3 x10^-4 )

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