rgesmom the Dube imo de reservoir. The hamber was then placed ely d stoppa Whit

Question

rgesmom the Dube imo de reservoir. The hamber was then placed ely d stoppa Whit The recorded water would the expenmeral charmber. ng Vito be higher and the BI The recorded yolu of uvrer in the expenrnernal chumber v woukt be too hig the Velo be highrr and the experimentil wntoarko cy The recorded vulume of water the experimental chamber. v woukl te roo Lou causing the Vrie be lower and the experimental on the experi fenign Charles' uw herause volume is directly proportion ated her peruani yild to be III Which ofthe possible explanarion The sample was not a lowed to dry. Some of the product remained on the filter paper All the above would result in a percent alyzed found to contain sof carb n 3T A compound uas ulate the empirical urth and 5.33 or axygen. or the following elements ly with 8. Sodium reacc violen react violently with wate A) Ca

Explanation / Answer

1st is not clear

2nd) % yield is (practical yield / theoretical yield) X 100

practical yield can in no case be greater than theoretical yield ...but since the question has suggested that it has yield of 103% ..there must be some moisture in it ...which was not dried properly ....an incompletre reaction can not have the yiled to increase as the acc to law of mass action ..the reactants gets converted to products ....hence A

3rd)

for this you need a table

clearing fractions = dividing by lowest number of moles ..

hence we have emperical formula as C2H3O

4th) calcium reacts violently with water ...

chlorine reacts with water to form HOCl and HCl

niobium forms a protective layer ion itself and doesn't react with water.

4th option not visible

element amount given in grams moles of element clearing fraction C 8.00 (8/12)= 0.667 (0.667/0.33) = 2 H 1.01 (1.01/1)= 1.01 (1.01/0.33)= 3 O 5.33 (5.33/16)= 0.33 0.33/0.33 = 1

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