8. Potassium persulphate (Anthion) is used in photography to remove the last traces of hypo from photographic papers and plates. A 0.8162 gram sample was found to k: 39 contain 0.2361 grams of potassium and 0.1936 grams of sulphur; the rest was s = 32.0 oxygen. The molecular mass of this compound was measured to be 270.3 u. What are the empirical and molecular formulas of potassium persulphate? (Arrange the atomic symbols in the formulas in the order KSO.)

Q: Allí in a potent antibacterial compound, is formed by the enzyme allinase when garlic is chopped or…

A: Allí compounds contains four atom  carbon, Hydrogen, Oxygen, Sulfur  10 mg produced Alli  16.27 mg…

Q: A certain gasoline additive that boosts the octane rating of gasoline is made of the elements C, H,…

A:

Q: A 55-kg woman has 7.5 × 10−3 mol of hemoglobin (molar mass = 64,456 g/mol) in her blood. How many…

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance. It is…

Q: A 1.90-g sample of an oxide of bromine is converted to 3.188g of AgBr. Calculate the empirical…

A: Given, 3.188g of AgBr 1.90-g sample of an oxide of bromine

Q: A compound containing only carbon, hydrogen, and oxygen is subjected to elemental analysis. Upon…

A: Given information: Mass of sample = 0.7916 g Mass of carbon dioxide = 1.581 g Mass of water = 0.6474…

Q: A 3.859 g sample containing impure CuCl2· 2 H20 was heated to constant mass. The sample mass after…

A: The impure sample of CuCl2.2H2O heating to drive off all the water then the mass of the mixture is…

Q: Fermentation is a complex chemical process of wine making in which glucose is converted into ethanol…

A:

Q: An experiment in the lab requires 0.03 g of sodium chloride, which is a substance that is safe for…

A: I can dispose the exess NaCl by throwing it in to the basin .

Q: A mixture of butene, C4H8, and butane, C4H10, is burned in air to give CO2 and water. Suppose you…

A:

Q: A 2.20 g sample of an oxide of bromine is converted to 3.692 g of AgBr. Calculate the empirical…

A: Step : 1         Calculate the empirical formula of the oxide.

Q: The density of carbon tetrachloride is 1.59 g/mL. How many moles are present in 50.0 mL of carbon…

A:

Q: Ammonia, NH3, can be synthesized by this reaction: 2 NO(g) + 5 H2 (g) ----------→ 2 NH3 (g) + 2 H2O…

A: The balanced reaction taking place is given as, => 2 NO (g) + 5 H2 (g) ---------> 2 NH3 (g) +…

Q: 6. Çalculate the mass (in g) of 2.3 x 1021 molecules of CO2.

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".