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In a reaction, 5.3 g of sodium carbonate...

In a reaction, 5.3 g of sodium carbonate reacted with 6 g of acetic acid. The products were 2.2 g of carbon dioxide, 0.9 g water and 8.2 g of sodium acetate. Show that these observations are in agreement with the law of conservation of mass.
sodium carbonate + acetic acid `→` sodium acetate + carbon dioxide + water

Text Solution

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Total mass of reactants = mass of sodium carbonate + mass of ethanoic acid = 5.3g + 6g = 11.3g Total mass of products = mass of sodium ethanoate + mass of carbon dioxide + mass of water `= 8.2 g + 2.2 g + 0.9 g = 11.3 g`
Thus, the mass of reactants is equal to the mass of products, therefore the observations are in agreement with the law of conservation of mass.
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In a reaction 5.3g of sodium carbonate reactants with 6g of ethanoic acid. The products were 2.2g of carbon dioxide, 0.9g water and some sodium ethanoate. What is the expected weight of sodium ethanoate?

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Knowledge Check

  • In a reaction 6.0g of sodium carbonate were reacted with 10g of hydrochloric acid solution. The product was a mixture of 4.5g of carbon dioxide and 11.5g of sodium chloride solution. This data in agreement with the law of

    A
    Law of conservation of mass
    B
    Gay Lussac’s Law of Gaseous Volumes
    C
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    D
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  • The reagent that reacts with acetic acid to give sodium acetate with liberation of carbon dioxide gas is

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    B
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    C
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    D
    baking soda

  • When a buffer solution of sodium acetate and acetic acid is diluted with water, then pH

    A
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    B
    Decreases
    C
    Unaffected
    D
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