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6 April, 20:33

For a science experiment Marcia dissolved 1.0 kilogram of salt in 3.0 liters of water. For a different experiment, Bobby dissolved 2.0 pounds of salt in 11.0 pints of water. Which person made a more concentrated salt solution? Complete the explanation. Use 1 kg = 2.2 lb and 1 L = 2.11 pints. Round your answers to the nearest hundredth.

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  1. 6 April, 22:42
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    Marcia dissolved 1 kg of salt in 3 litres of water.

    Bobby dissolves 2 pounds of salt in 7 pints of water

    2.11 pints = 1 litre

    7 pints = 7/2.11

    = 3.32 litre

    1 pound = 0.45 kg

    2 pound = o. 45*2 kg

    = 0.9 kg

    So we find that Bobby is dissolving 0.9kg of salt in 3.32 litre of water

    Marcia is dissolving 1 kg of salt in 3 litres of water.
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