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7 November, 00:35

A gummie bear was tested through a flame-calorimeter test. the bear had a mass of 1.850 grams and the temperature of 100.0 milliliters of water increased by 15.0 degrees celsius. how many calories were in the gummie bear? show all of your calculations.

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  1. 7 November, 00:58
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    Answer: - 1500 calories

    Solution: - mass of bear = 1.850 g

    volume of water = 100.0 mL

    Density of water is 1.00 g/moL. So, mass of water would be 100.0 g.

    delta T for water = 15.0 degree C

    specific heat capacity for water is 1 cal / (g * degree C)

    q = m x c x delta T

    where, q is the heat energy, m is mass, c is specific heat capacity and delta T is change in temperature.

    for water, q = 100.0 x 1 x 15.0

    q = 1500 calorie

    heat gained by water = heat lost by bear

    So, the 1.850 g bear has 1500 cal or 1.50 Cal.

    (Where, 1 Cal = 1000 cal)
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