The molecular weight of NaCl is 58.44g/mol, the Atomic Mass of Na is 22.99 and the atomic mass of Cl is 35.45 when added together we get 58.44 g/mol.
The molecular weight of BaCl2 is 208.233g/mol, the atomic mass of Ba is 137.327 and the atomic mass of Cl2 is (35.453)(2) = 70.906 when added together we get 208.233g/mol
H2S is the chemical formula for barium chloride.
The chemical formula of sodium sulfate is Na2SO4. The chemical formula of barium chloride is BaCl2. BaCl2 + Na2SO4-----------BaSO4 + 2 NaCl BaSO4 is a white, practically insoluble in water precipitate; this property is important in gravimetric analysis.
NaCl
208.23 Ba = 137.33 Cl = 35.44(2) add them together
BaCl2 is barium chloride, Na2CO3 is sodium carbonate, NaCl is sodium chloride BaCO3 is barium carbonate; the reaction is:BaCl2 + Na2CO3 = BaCO3 + 2NaClBarium carbonate is a water insoluble white precipitate.
BaCl2
For ppt ion so4
Not formula weight: the correct expressiuon is molecular weight. Chlorine atomic weight (rounded, conventional): 34,45 Sodium atomic weight: 22,969 764 28 The sum is the molar weight of NaCl: 58,419 764 28
bacl2 2h2o
bacl2
BaCl2
Mass of BaCl2 = crucible + lid + BaCl2.nH2O - empty crucible + lidMass of water contained in hydrated BaCl2: Initial mass - final massNo. of moles of H2O in hydrated salt = No. of moles = mass of H2O/formula mass of H2O Use this answer in ratioNo. of moles of BaCl2 in 3.399 g = No. of moles = mass of BaCl2/formula mass of BaCl2 Use this answer in ratioThe ratio of BaCl2 to H2O is 1 : 2