Formaldehyde : A clear, colorless, aqueous solution of 40 percent formaldehyde is called formalin. Formalin is used disinfectant, preservative for biological specimens, etc. Formaldehyde is the first member of the aldehyde sequence. It is lie in green leaves of plants where its presence is supposed to be due to the reaction CO2 with water in presence of sunlight and chlorophyll.
Molarity: Molarity is the concentration of a solution expressed as the number of moles of solute per litre of solution. Explanation: To get the molarity, you divide the moles of solute by the litres of solution. For example, a 0.25 mol/L NaOH solution contains 0.25 mol of sodium hydroxide in every litre of solution. To calculate […]