Calculate the molar mass of the following substances.
Hydrochloic acid, HCl

Calculate the molar mass of the following substances. Nitric acid, HNO_3

Calculate the molar mass of the following substances. Ethyne, C_2H_2

Calculate the molar mass of the following substances. Sulphur molecule, S_8

Calculate the molar mass of the following substances. Phosphorus molecule, P_4 (Atomic mass of phosphorus = 31)

Calculate the median from the following data:

Calculate the molarity of each of the following solutions: 30 mL of 0.5 M H_2SO_4 diluted to 500 mL.

Mention few use of : Hydrochloric acid (HCl).

Calculate the molarity of each of the following solutions: 30g of Co(NO_3)_2 . 6H_2O in 4.3 L of solution.

Calculate the mass of NaCl in 5 molal solution.