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GrogVix [38]
3 years ago
14

What is the electrical power generated from a voltage of 12.3 V if the current is 9.42 amps

Chemistry
1 answer:
miv72 [106K]3 years ago
3 0

Answer:

the electrical power would be 115.86 watts. have a nice day

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The acid-dissociation constant of hydrocyanic acid (hcn) at 25.0 °c is 4.9 ⋅ 10−10. what is the ph of an aqueous solution of 0.0
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According to the reaction equation:

and by using ICE table:

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change -X                        +X          +X

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so from the equilibrium equation, we can get Ka expression

when Ka = [HCN] [OH-]/[CN-]

when Ka = Kw/Kb

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So, by substitution:

2 x 10^-5 = X^2 / (0.08 - X)

X= 0.0013

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∴ POH = -㏒[OH]

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            = 2.886 

∴ PH = 14 - POH

         = 14 - 2.886 = 11.11
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