Inorganic Chemistry Answers

Determine the moles of solute particles dissolved in 1.0 Kg of water, for the following solutions:

a) CH₃CH₂OH, 2.0 m; b) KCl, 2.5 m; c) Al₂(SO₄)₃, 1.0 m; d) C₁₂H₂₂O₁₁ (saccarosio), 3.0 m; e) HNO₃, 2.0 m

Does following compound are stable compounds of transition elements? Give reason for your answer.

CrCl6 MnCl7

Approximately 100 g of PbCl4 reacted excess NH4Cl according to the following equation: PbCl4 + 2 NH4Cl → (NH4)2PbCl6. If the yield was 87.0%, how many grams of product were obtained?

please include calculations

The metal used to recover copper from a solution of copper sulphate is?

A. Na

B. Ag

C. Hg

D. Fe

Please explain reason for the answer also

The molar enthalpy change accompanying the removal of an electron from a gas phase atom or ion in its ground state is called

A. Electron gain enthalpy

B. Ionization enthalpy

C. Enthalpy change

D. Enthalpic gas removal

Find the PH in which hydrogen ion [H+] concentration is 6.38×10-6

100 kg of a sample of argentiferous lead containing 0.5% Ag is melted and then allowed to cool.If eutatic contains 2.6%Ag,1) what mass of eutectic will be formed and 2) what mass of lead will seperate out?

What is acetic acid.

Why do scientists sometimes discard theories?

How much of substance B is needed to react with the given amount of A?

A B

40.00 ml 0.5000 N H2SO4 ______ mg MgO

106.0 mg Na2CO3 ______ ml 0.1000 N HCl for complete

neutralization

30.00 ml 0.2000 M H2SO4 ______ ml 0.2000 N NaOH

25.00 ml 0.1500 N KOH ______ mg benzoic acid

204.2 mg potassium acid phthalate ______ ml 0.04000 N KOH

4 meq H2SO4 ______ ml 0.1200 N Ba(OH)2

0.5000 g 85% H3PO4 solution ______ ml 0.1200 N NaOH if reaction is

H3PO4 + OH- = H2PO4- + H2O