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natita [175]
3 years ago
13

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

Chemistry
1 answer:
lorasvet [3.4K]3 years ago
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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During strenuous exercise, the NADH formed in the glyceraldehyde 3-phosphate dehydrogenase reaction in skeletal muscle must be r
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Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 162. kJ during a certain chemical reaction, w
puteri [66]

Answer:

= -356KJ

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ΔU =ΔH + W

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