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robertss403
20.03.2020 •
Chemistry
2 HI(g) ⇄ H2(g) + I2(g) Kc = 0.0156 at 400ºC 0.550 moles of HI are placed in a 2.00 L container and the system is allowed to reach equilibrium. Calculate the concentration of H2 at equilibrium. 0.0275 M (Your correct answer) 0.138 M 0.275 M 0.550 M 0.220 M
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Ответ:
The concentration of hydrogen gas at equilibrium is 0.0275 M
Explanation:
Molarity is calculated by using the equation:
Moles of HI = 0.550 moles
Volume of container = 2.00 L
For the given chemical equation:
Initial: 0.275
At eqllm: 0.275-2x x x
The expression of
for above equation follows:
We are given:
Putting values in above expression, we get:
Neglecting the negative value of 'x' because concentration cannot be negative
So, equilibrium concentration of hydrogen gas = x = 0.0275 M
Hence, the concentration of hydrogen gas at equilibrium is 0.0275 M
Ответ:
6.68%
Explanation:
FV= 1000
N = 25*2=50
PMT= 8.75%*1000/2= 43.75
PV = -1250
I/Y = RATE(25*2, 8.75%*1000/2, -1200, 1000)
I/Y = 0.033397
I/Y = 3.34%
YTM = 3.34% * 2
YTM = 6.68%