Category: Lab Notes

Helicobacter pylori was discovered by J R Warren and B Marshall. Their work was published in 1983 in a Journal “The Lancet”.

Barium hydroxide [Ba(OH)2] is an inorganic compound of three elements: Barium, Oxygen, and Hydrogen. The molecular weight of Barium hydroxide is 171.3418 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of Barium, Oxygen, and Hydrogen.

Barium bromide [BaBr2] is an inorganic compound of two elements: Barium and Bromine. The molecular weight of Barium bromide is 297.135 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of Barium and Bromine.

Ammonium persulfate [(NH4)2S2O2] is an inorganic compound of four elements: Nitrogen, Sulfur, Hydrogen, and Oxygen. The molecular weight of Ammonium persulfate is 228.20468 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of Nitrogen, Sulfur, Hydrogen,  and Oxygen.

Ammonium acetate (CH3COONH4) is an organic compound of four elements: Carbon, Hydrogen, Nitrogen, and Oxygen. The molecular weight of Ammonium acetate is 77.08294 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of Carbon, Hydrogen, Nitrogen, and Oxygen.