Inorganic Chemistry Answers

Question #220460

Inorganic Chemistry

impure copper obtained from minerals contains impurities as iron, gold and silver. after passage of 200 a current for 400s, the mass of anode decreased by 27g and that of cathode increased by 24.5g. calculate the respective percentage of iron and copper originally present (given weight of cu = 63.5g and fe = 56g)

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Question #220410

Inorganic Chemistry

How much aluminium oxide is produced when (6.29x10^1) g of Al reacts with (1.2x10^2) g of MnO?

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Question #220284

Inorganic Chemistry

Substance(A) in a group B of periodic table is yellowish-white delinquescent solid which sublimes.(A) dissolved in with water to form solution (B).a sample of (B) gave a white precipitate (C) on addition of dilute HNO3 and AGNO3 solution . precipitate (C) readily dissolved on the addition of dilute aqueous NH3, through gelatinous white precipitate (D) was formed In its place .(D) was filtered off and dissolved in excess NAOH , forming a clear solution (E), compound (D) was reprecipitate .(A) dissolved unchanged in dry ether,and when this solution was reacted with LIH one of two product (F) or g was formed , depending on whether the LIH one of two product (F)or(G) was formed , depending on whether the LIH was in excess or identity substance A to G.

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Question #220279

Inorganic Chemistry

Write chemical formulae of the two common oxide of sulphur and indicate the oxidation state of sulphur in each one?

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Question #220275

Inorganic Chemistry

Name the anode ,cathode and electrolyte used in the lead storage battery.write the anode and cathode balanced reactions , including the overall discharge reaction that occurs In this battery?

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Question #220272

Inorganic Chemistry

Write balance equation for the laboratory preparation of oxygen gas.how would you confirm the presence of the gas?

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Question #220271

Inorganic Chemistry

Use two equations,one to describe the laboratory preparation of co2 and the other to confirm the presence of the gas.

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Question #219816

Inorganic Chemistry

Calculate the mass of disodium ethylene diamino tetra-acetic acid to be weighed to prepare 1 L of ca 0.1 M solution of EDTA

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Question #219813

Inorganic Chemistry

Calculate the mass of FAS to be weighed to prepare 1.0 L of Ca 0.80 N solution

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Question #219110

Inorganic Chemistry

Draw briefly EAN rule. Which of the following

complex follow EAN rule ?

(i) [Cr(NH₂)]+3

(ii) [PtCl]

(iii) [Ni(NH₂), 12

(iv) [Co(NO₂),

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