The mass of KOH required to completely neutralise the gas is Magnesium and oxygen combine in the ratio of `3 : 2` by mass to form magnesium oxide.Calculations: Formula: CuCO3.Cu(OH)2 Molar Mass: 221.1018 g/mol 1g=4.52280352308303E-03 mol Percent composition (by mass): Element Count Atom Mass %(by mass)
Divide the molar mass by the ion charge or oxidation number (for CaCO3) to determine equivalent (Eq.) weights. Multiply alkalinity in "Eq/L" by the equivalent weight of CaCO3 to calculate it in g/L. In our example, Alkalinity as CaCO3 = 0.0097 Eq/L x 50 g/Eq = 0.485 g/L = 485 mg/L.