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The normal boiling point of ethanol (C2H5OH) is 78.3 °C and its molar enthalpy of vaporization is 38.56 kJ/mol. What is the change in entropy in the system in J/K when 62.2 grams of ethanol at 1 atm condenses to a liquid at the normal boiling point?
You have 250.0 ml of 4.00 M sugar solution. You add 217.3 ml of water to this solution. Determine the concentration of the sugar solution after the water has been added
A 30.5-g sample of an alloy at 93.0°C is placed into 50.0 g of water at 22.0°C in an insulated coffee cup with a heat capacity of 9.2 J/K.
.56 g of a specific gas are held at 101 degrees Celcius and 800 torr in a volume of 285 mL. Determine the molecular weight of the gas.
what is the molarity of the solution formed by mixing 0.20 mol of sodium hydroxide with enough water to make 150 ml of solution
If the final solution has a bromide ion concentration of 1.26 M, what was the concentration of the SrBr2 solution? (the volumes are additive) I dont understand how to write the reaction
Magnesite MgCO3 and siderite FeCO3 are the Mg and Fe end-members of the magnesite-siderite solid solution.
What is the enthalpy of vaporization of acetone (CH3COCH3) at its normal boiling point of 56.2?C? The entropy of vaporization of acetone is 88.3 J/K·mol,Answer in units of kJ/mol
Compute the enthalpy change, for this reaction per mole of solution and A calorimeter has water of 22.0 grams at the temperature of fifteen degree celsisu
calculate the final temperature of a mixture of 130.0 g of ice initially at -22.5 Celsius and 310.0 g of water initially at 80.5 Celsius.
A compound contains 10.13% C, and 89.87% Cl (by mass). Determine both the empirical formula and the molecular formula of the compound given that the molar mass is 236g/mol
Nitrosyl bromide, NOBr, is 34 percent dissociated at 25 deg. C and the total pressure is 0.25 atm.
Propane reacts with excess oxygen to produce carbon dioxide gas and water. What volume of CO2,measured at 27.2 °C and 0.918 atm, is produced from the reaction of 10.1 g propane with excess oxygen.
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