Inorganic Chemistry Answers

Explain the steps you would follow to make 500 mL of a 0.5 mol/L solution of sodium chloride (NaCl) in the lab.

What is the relationship betweet concentration and volume in the formula Ci Vi = Cf Vf
what is the relationship between initial number of moles and final number of moles of solute?

What is the number of moles in 500 L of He gas at STP?

How can we say that water contains hydrogen and show the reaction too.

The analysis of a hydrocarbon revealed that it was 85.6281% C and 14.3719% H by mass. When1.8gofthegaswasstoredina1L flask at 93.4515◦C, it exerted a pressure of 489 Torr. What is the molecular formula of the hydrocarbon?

define emulsion ?

mg+2 is smaller than O-2in size,though both have same electronic configuration ,why?

in industrial preparation by changing air to liquid we can produce oxygen by what method?

Asolution in a bottle is 1.2 molar concentrated. What volume of it must be diluted with water to obtain
600cm3
of 0.05 molar solution.

i want to make a solution of sodium chloride of 0.2 moll but the volume has to 50 cm cubed. How would i make the calculations to find out how much of everything is needed?