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19 August, 15:28

A sample of barium nitrate is placed into a jar containing water. The mass of the barium nitrate sample is 27g. Assume the water is at 20 degrees C and the resulting barium nitrate solution is saturated. What mass of water is present in the jar?

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  1. 19 August, 19:16
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    So we have Barium nitrate with a solubility of 8.7g in 100g water at 20°C.

    using that relation

    i. e.

    8.7g (barium nitrate) = 100g (water)

    1g barium nitrate = 100/8.7 g water

    27g barium nitrate = (100 / 8.7) * 27

    = 310.34 g

    therefore,

    you need 310.34g of water is in the jar.
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