Question

Mass of evaporating dish (g) Mass of evaporating dish and hydrated sample Mass of original hydrated sample (g) Mass of evaporating dish and dehydrated 40 , 31 41. 34g sample (g) Mass of dehydrated sample (g) Mass of water evolved (g) Mass of evaporating dish and copper (g) Mass copper (g) Mass of chlorine (g) 6.349 40,し39 0 37g DATA ANALYSIS 1. How many moles of water were in your sample of copper chloride hydrate? (Show calculations). H 1.01 x 1 2.02 0.349 H2e .023 h10 15.o2 2. How many moles of copper were in your sample of copper chloride? (Show calculations) 63.55g Cu were in your sample of copper chloride? (Show calculations). 35H59 디 4. Wite the chemical formula for the copper chloride hydrate.

Answer 1

all steps you did well now,

as we can see here the mole ratio of the given molecule and atoms are--

Cu : Cl : H2O = 1 : 2 : 5 (approx.)

so chemical formula as per the given data must be CuCl2. 5H2O(Copper chloride pentahydrate).

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