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30. Describe Rutherford's gold foil experiment, observations and conclusions of theexperiment and Rutherford's nuclear model of the atom.ORi) In a reaction,5.3 g of sodium carbonate reacted with 6 g of ethanoic acid. Theproducts were 2.2 g of carbon dioxide,0.9 g of water and some sodium ethanoate.What is the expected weight of sodium ethanoate? Prove that this data is in agreementwith the law of conservation of mass.ii) Calculate the number of molecules of S present in 16 g of solid sulphur.(Givenatomic mass of sulphur=32u) |
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Answer» I)expected weight of ethanoate = (5.3+6)-(2.2+0.9) =11.3- 3.1 = 8.2 (law of conservation of MASS) II)molar mass of s8=32×8 =256 g no of moles = 256/16 no. of molecules = 6.022 × 10^23 ×256/16 hop it helps you mark my answer as brainliest
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