How Do You Calculate The Number Of Moles Of Collected Hydrogen Gas?
Hydrogen gas has the chemical formula H2 and the molecular weight of 2. This gas is the lightest substance among all chemical compounds and the most abundant element in the universe. Hydrogen gas has also drawn significant attention as a potential energy source. Hydrogen can be obtained, for example, by electrolysis of the water. You calculate the amount of hydrogen in moles either from the gas mass or using the ideal gas law. Familiarize yourself with the ideal gas law that is given as PV = nRT; where “P” represents pressure, “V” is volume, “n” is the number of moles of a gas and “T” is temperature. “R” stands for the molar gas constant, which is 8.314472. Add the value 273.15 to the temperature in Celsius (C) to convert it to Kelvin (K). For example, if the hydrogen was collected at 20C, this temperature would correspond to 293.15 (273.15 + 20) K. Multiply the pressure commonly expressed in atmospheres (atm) by 101,325 to convert the pressure to the International System of Units Pasc
