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How do you calculate the heat in joules needed to freeze 295 g of water at 0*C?
A 36-gram sample of water has an initial temperature of 22°C. After the sample absorbs 1200 joules of heat energy, what is the final temperature of the sample?
To melt the ice on your driveway, you can use two moles of rock salt (#NaCl#) or two moles of calcium chloride (#CaCl_2#) which solute will have the greatest effect and why?
How can I explain standard molar Gibbs free energy?
How does heat capacity change with temperature?
How much heat must be removed to freeze a tray of ice cubes at 0°C if the water has a mass of 225 g?
If a sample of chloroform is initially at 25°C, what is its final temperature if 1.5 kg of chloroform absorbs 1.0 kilojoules of heat, and the specific heat of chloroform is 960 J/kg C?
Is enthalpy of hydration always negative?
A 21.59 g sample of a substance is initially at 22.3 °C. After absorbing 1199 J of heat, the temperature of the substance is 137.0 °C. What is the specific heat ( ? ) of the substance?
Which of the following processes would be expected to have a positive #Delta"S"# value?
How does molecular shape affect polarity?
How many joules are needed to boil 59.8 g of ethanol if the heat of vaporization is 854 J/g?
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