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If 3.500 g of Ni (58.69 g/mol)are reacted with excess oxygen to form nickel oxide (NiO) under standard state conditions, what is the entropy change for the reaction?

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General Chemistry 2
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Solve problems relating to entropy
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Related questions

Please Help me with this question.

1) Calculate the standard-state entropy for the followingreaction:

2 NiS(s)+ 3 O2(g)? 2 SO2(g)+ 2 NiO(s)

(If applicable, coefficients of one have been included forclarity.)

The standard entropy values are given in the table.


Formula SJ/(K*mol)


SO2(g) 248

NiO(s) 38.0

NiS(s) 53.0

O2(g) 205


Express your answer in joules per kelvin to three significantfigures.

Ns

d

Consider the reaction: NiO(s)+CO(g)⇌Ni(s)+CO2(g) Kc=4000.0 at 1500 K When calculating the answer, do not round to the appropriate number of significant figures until the last calculation step. Part A If a mixture of solid nickel(II) oxide and 0.18000 M carbon monoxide is allowed to come to equilibrium at 1500 K, what will be the equilibrium concentration of CO2?


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