Inorganic Chemistry Answers

On addition of conc.sulphuricacid to chloride salt, colourless fumes are evolved but in case of iodine salt,violet fumes come out.this is because

Hello,

I am using Sodium Carbonate Peroxyhydrate to control filamentous algae in a garden pond.
After adding the SCP at a rate of .5lb/2800 USG the pH rises to 8.

Can I add sodium bisulfate at a rate of 150g to the SCP or only afterwards to the body of water in order to return the pH to 7?

thanks

Dave

what is the difference between vacuum pump and compressor and also describe the working principle of liquid ring compressor and liquid ring vacuum pump?

which d-orbital s are involved in sp3d3 hybridisation

why is sulphide ore roasted befor reduction?

Balance the following redox equations:
1. H2S + Cr2O72- → S + Cr3+ (acidic medium)
2. MnO2 + HCl → Mn2+ + Cl2 + H2O

Define the following:
1. Unimolecular reaction
2. Bimolecular reaction
3. Elementary reaction
4. Overall reaction

The equilibrium constant for the gaseous reaction
H2 + I2 ↔ 2HI is 50.2 at 448oC, calculate the number
of grams of HI that are in equilibrium with 1.25 mole of
H2 and 63.5g of Iodine at this temperature

Rubidium ignites spontaneously when exposed to oxygen to for rubidium
Rubidium ignites spontaneously when exposed to oxygen to for rubidium oxide. Rb²0. Rubidium exists as two isotopes (84.91u) and (86.91u). if the average atomic mass of rubidium is (84.91u), determine the percentage abundance of 85/37Rb

why industrial usage of potassium hydroxide is 48% and if 100% is used, what is the effect of it?