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3 years ago

How many moles of copper are needed to react with sulfur to produce 0.25 moles of copper (I) sulfide

1 answer:

7 0

Copper react with sulfur to produce copper (1) sulfide according to the following equation
2Cu + S ----> CU2S
from the equation above 2 moles of copper react with 1 mole of Sulfur to produce 1 mole of copper (1) sulfide

therefore the mole ratio of Cu to CU2S is 2:1 therefore the moles of copper is 0.25 x 2= 0.5 moles

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A tank of gas has partial pressures of nitrogen and oxygen equal to 1.61 Ã— 104 kPa and 4.34 Ã— 103 kPa , respectively.What is t

Alchen [17]

Answer:

$20.44\times 10^3 kPa$ is the total pressure of the tank.

Explanation:

Partial pressures of nitrogen = $p_{N_2}=1.61\times 10^4 kPa$

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Applying Dalton's law of partial pressures :

$P=p_{N_2}+p_{O_2}=1.61\times 10^4 kPa+4.34\times 10^3 kPa$

$P=20.44\times 10^3 kPa$

$20.44\times 10^3 kPa$ is the total pressure of the tank.

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2 years ago

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3 years ago

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3 years ago

For a tablet containing 500. mg of vitamin C, calculate how many ml of 0.095 M NaOH is required to reach the equivalence point.

Gala2k [10]

Answer:

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Explanation:

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