Provide the name or formula for the following compounds: Hg2O NaNOj P2S5 aluminu

Question

Provide the name or formula for the following compounds: Hg2O NaNOj P2S5 aluminum acetate arsenic pentafluoride Bornite (Cu3FeS3) is a copper ore used in the production of copper. When heated, the following reaction occurs: Cu3FeSa (s) + O2 (g) Cu (s) + FeO (s) + SO2 (g) Using the lowest whole-number ratio, balance the following equation. If there is an excess amount of oxygen gas present, how many moles of oxygen gas will react with 1525 kg of bornite? If the process has a 63.7% yield of copper, what mass of copper will be produced? A 45.00-mL sample of hydrochloric acid solution requires 24.16 ml of 0.237 M sodium hydroxide for complete neutralization. What is the concentration of the original hydrochloric acid solution?

Explanation / Answer

1.

a)Mercurous Oxide

b)Phosphorous Pentasulfide

c) CH3COONH4

d)Sodium nitrite

e)Al2Se3

f) AsF5

2)

a)

Cu3FeS3 + 7 O2 --> 6 Cu + 2 FeO + 6 SO2

b)

The molar mass of Cu3FeS3 is 342.68 grams.

Cu3FeS3 contains 3 moles of Cu in it.

3 x 63.546 = 190.6 grams of Cu are in 1 mole Cu3FeS3 .

Hence.

(1525) (190.6) / (342.68 g Cu3FeS3) = 848.21 kg of Cu.

63.7% of 848.21 = 540.31 kg of Cu.

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