Kamal was on a picnic to Hatta with his parents and family friends. While playing, he collected some muddy water from the Wadi i
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Answer:
Explanation:
The formula for molality is:
There are 0.210 moles of KBr and 0.075 kilograms of pure water.
Substitute the values into the formula.
Divide.
The molality is <u>2.8 moles per kilogram</u>