The Mole Formulae And Chemical Equation Questions and Answers

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A solution contains 29.1g per litre of aluminium Sulphate. Calculate the number of Sulphate ions in 350cm3 of the solution.(Al = 27, S = 32, O = 16) Avogadro’s constant = 6.0 x 1023.

asked Aug 17, 2021 in Chemistry Form 3 by anonymous

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In a experiment to determine the percentage of purity of a sample of sodium carbonate, 2.15g of the sample reacted completely with 40cm3 of 0.5m sulphuric (iv) acid

asked Aug 4, 2021 in Chemistry Form 3 by anony mous

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Write down the formula of the following compounds

asked Aug 4, 2021 in Chemistry Form 3 by anony mous

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Determine the number of sodium ions contained in 25cm3 of 0.5M sodium carbonate solution [a=6.023 x 1023]

asked Aug 4, 2021 in Chemistry Form 3 by anony mous

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An oxide of element F has the formulaF2O5

asked Aug 4, 2021 in Chemistry Form 3 by anony mous

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When 0.288g of an oxide of metal M was reduced using suitable reducing agent, 0.256 of pure metal was formed. Determine the empirical formula of the oxide of the metal M. [M=64 O=16]

asked Aug 4, 2021 in Chemistry Form 3 by anony mous

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If 25.0cm3 of 0.1 MH2S04 solution neutralized a solution containing 1.06g of sodium carbonate in 250cm3 of solution, calculate,

asked Jul 7, 2021 in Chemistry Form 3 by anony mous

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