Inorganic Chemistry Answers

which is the stronger bond?
and out of covalent and ionic which is strong?

1st Question:-

What is the contraction of the Na and K if we take 1ml from Na (10ppm) and 1ml from K (10ppm) and dissolved them together with dist. water to be 10 ml mixed soln.?





2nd Question:-

What is the contraction of the Na and K if we take 1ml from a mixture contains Na (10ppm) and K(10ppm) and dissolved it with dist. water to be 10 ml mixed soln.?

What is meant by nucleofuse and electrofuse

True or False

1. The presence of at least one lone pair on a molecule (with polar bonds) will make the molecule polar.
2. The geometry of a molecule is explained by the valence bond theory.
3. In valence bond theory, the bonding orbitals are spread over the entire molecule.

------------------------------------------------------------------------------------------------------------------
4. Which one of the following is INCORRECT?
a) if two 1s (atomic) orbitals form molecular orbitals. they would form two bonding orbitals.
b) Bonding molecular orbitals are lower in energy than their parent atomic orbitals.
c) Valence Bond theory cannot explain the extended pi bonding in a resonance structure.
d) Valence bond theory is based on the idea that bonds are formed from the overlap of atomic orbitals.
e) All the the above are correct.

what regent(s) would distinguish between
a) barium nitrate and lead nitrate solution?
b) copper (ii) nitrate and barium nitrate solution ?
c) silver nitrate and sodium nitrate solution ?
d) sodium nitrate and sodium sulfate solution ?

what cation would be present in a solution which forms a precipitate when added to sodium carbonate and sodium sulfate solutions but which gives no visible reaction with sodium chloride or sodium hydroxide solution

1. briefly explain why it would not be possible to distinguish between sodium nitrate and sodium acetate with the test scheme used in this experiment

a test tube contains a solutin of one of the followin salts NaCl, NaBr, and NaI describe a single test that can distinguish among these salts.

Calculate the pH of a 0.050 M HNO3 solution.

Given the following reaction: 2 KClO3(s) 2KClO3(s) + 3 O2(g)
What mass of KClO3 will produce 250mL of O2 gas, collected by water displacement, at an atmospheric pressure of 745 torr and a temperature of 30.0 C? The vapor pressure of water at 30.0 C is 31.8 torr.