Inorganic Chemistry Answers

Carbon can form acetylides and methanides, while the other elements in the group are unable to do so,why?

What compound becomes green and turns yellow with concentrated HCl

Describe the clathrates of noble gases

A student heated (1.30x10^0) grams of copper(II) sulfate pentahydrate and found the anhydrous salt weighed (7.5800x10^-1) grams. What was this student's experimental mass percent water?

A student heated (4.91x10^0) grams of calcium sulfate dihydrate. How many grams of water should be lost if the sample is heated correctly?

What is the mass percent of water in a hydrate of copper(II) sulfate that has (1.00x10^0) waters of hydration?

It is your first day of work in your new laboratory job. You are asked to prepare 700 mL of PBS (phosphate buffered saline). The PBS needs to be pH 7.40, with 25 mM phosphate and 140 mM NaCl. You are given a bottle of NaCl (FW = 58.45), a 1.00 M Na2HPO4 stock solution, and a 1.00 M NaH2PO4 stock solution. Describe how to prepare this buffer. (For H3PO4: pK1 = 2.12, pK2 = 7.21, pK3 = 12.66)

What is meant by effective nuclear charge? What are the factors that determine the
effective nuclear charge? How is it calculated?

What is hydrazoic acid? Why are the ionic azides more stable than the covalent azides
and hydrazoic acid

Describe the structure of sulphuric acid and explain the reasons of shortening of S-O
bonds in the molecule.