Inorganic Chemistry Answers

What is the gram of 1.22 mol/dm cube of sodium hydroxide (na=23,o=16,h=1) naoh

What is the molar concentration of solution of 162.8g of calcium hydroxide dissolved completely in 1000cm cube of distilled water (ca=40,o=16,h=1)

Write Born-Haber cycle for BaO crystal

why graphite is poor than diamond?
why diamond is harder than graphite?
why graphite is smoother?

What is the pH of a solution of 1.111L of 1.33M HF, ka= 7.2 x 10^-4, and 1.49 moles of NaF?

The next three (3) problems deal with the titration of 541 mL of 0.501 M carbonic acid (H2CO3) (Ka1 = 4.3 x 10-7, Ka2 = 5.6 x 10-11) with 1.5 M KOH.

3. How many mL of the 1.5 M KOH are needed to raise the pH of the original carbonic acid solution to a pH of 6.755? Give your answer to one decimal place.

Electrolysis of Dilute sodium nitrate.
Q:Write the half-equation for anode and cathode reactions.

In a volume of 0.400 dm^3 of CH2CL2 there are 3.73*10^24 molecules at 25 degree celsius. Calculate
(A) The density of the substance at 25 degree celsius, expressed in g.cm^3.
(B) The number of atoms present in 425g of CH2CL2. (Solve by means of complete numerical development without omitting the statements or the units)

As we move from top to bottom in p-block 7A the stability of +2 oxidation state increeses, why

why were the compounds of nobel gasses discovered late. why do nobel gasses form compounds with oxygen and fluorine