Chemistry, 02.12.2020 14:00 taylorep2004
4. How many grams of water can be taken from -20 °C to 115 °C by burning 320 g of propane (C3H8)? Assume that all the energy of combustion goes into water and the heat of combustion for propane is 2220 kJ/mol. Please show the order of equations
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You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices
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4. How many grams of water can be taken from -20 °C to 115 °C by burning 320 g of propane (C3H8)? As...
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