(Answered) 1a what is the freezing point of this solution if 30g

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1A. What is the freezing point of this solution if 30g Na₂SO₄ is dissolved in 800ml of water? Density of water is 1g/ml. K_f = 1.86°C kg/mol

1B. What is the boiling point of the solution if 25g KI is dissolved in 800ml of water? Density of water is 1g/ml. K_b= 0.51°C kg/mol

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