Formic Acid, HCHO​2,​ is a convenient source of small quantities of carbon monoxide. When warmed with an acid catalyst, it decomposes to give off water and carbon monoxide. If was collected ​over water​ at 25.00​ ​C and 689 mm Hg, 6. Hydrogen gas is isolated from zinc and hydrochloric acid. If the gas is collected over water​, and 156 mL of hydrogen are collected at 19.00​ ​C and 769 mm Hg total pressure, what is the mass of hydrogen collected? ​65 grams of sodium carbonate powder​ ​how many mL of gas​ total pressure? ​3.85 liters of CO​ ​how many grams of formic acid were used?

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.