415 of anhydrous barium chloride when 459g of the hydrated salt were heated.calculate n in the formula Bacl2 nh2o

2 answers

I need the answer now please
the molar mass of BaCl2 is 208 g

the moles (BaCl2) in the heated sample is ... 415 / 208

the mass lost by heating is H2O ... 459 g - 415 g
... find the moles by dividing by the molar mass of H2O

n is ... (moles H2O) / (moles BaCl2)