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In an excess of NH3(aq), Cu2+ ion forms a deep blue complex ion, Cu(NH3)4^2+ (Kf=5.6x10^11). Calculate the concentration of Cu2+ in a solution adding 5.0x10^-3 mol of CuSO4 to .5 L of .4 M NH3

What is the main idea of Thiong'o's essay, Decolonising The Mind?

How does Carbon hybridize it's S and P orbitals and what effect does this have on the 3D structure and chemical behavior? Your answer must include 1) diagrams of SP, SP2, and SP3 bonds as well as any left over Py or Pz orbitals; 2) a discussion with diagr...

If you are given a colored substance as a sample, how would you measure the pH of a sample?

Which of the two reactions in Blue Printing is an oxidation-reduction reaction? What is the oxidizing agent and the reducing agent? Fe^3+ + C204^-2 (oxalate) -> Fe^2+ + CO3 Fe^2+ + Fe (CN)6^-2 -> Fe3[Fe(CN)6]2 Can the second reaction occur in the absence...

Twenty two exceeds twice of a number by14. What is the number?

A rectangular photo measures 18cm by 7cm. The lengths are enlarged in the ratio 2:3. What is the ratio of the original photo to the area of the enlarged photo?

A farmer has 38 animals only goats and chicken together they have116 legs how many of each type of animal are there?

Which one is the oxidizing agent and the reduction agent? Can the second reaction occur in the absence of light? Thank you!

The correct answers are 1) D 2) A,B,C 3)B 4)A 5)A

The geographic north pole is near the magnetic south pole