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The heat of vaporization of a liquid is the energy required to vaporize 1.00 mol of a liquid at its boiling point. In one experiment, 60.0 g of liquid nitrogen (boiling pt = -196C) is poured into a Styrofoam cup containing 200.0 g of water at 55.3C. Calculate the molar heat of vaporization of liquid nitrogen if the final temperature of the water is 41.0C.
Compute KP at this temperature If the pH of an aqueous solution is 8.23, what are the hydrogen- and hydroxide-ion concentrations of this solution?
How many grams of solute are required to make a 147 mL solution of sodium hydroxide with a concentration of 0.5330 M.
The vapor pressure of a solution containing 53.6 g glycerin (C3H8O3) in 133.7 g ethanol (C2H5OH) is 113 torr at 400C. Calculate the vapor pressure of pure ethanol at 400C
The elements X and Y form a compound that is 33.33% X and 66.67% Y by mass. The atomic mass of X is twice that of Y.What is the empirical formula of the compound?
A 180 kiln is used for vitrifying ceramics. It is currently operating at 1025 , and the pressure is 1.100 . How many moles of air molecules are within the confines of the kiln.
Explain Gibbs-Duhem Equation, In a certain binary solution, the activity of component 1 is given by
The solution of the question , a 0.3172 g sample containing only KCl and NaBr is dissolved in 50ml water and titrated with 0.1120M AgNO3 , requiring 36.14ml to reach the end point.
calculate the activation energy for a reaction if its rate constant increases from 10 to 45 s as the temperature increases from 298 to 315 k .
The vapor pressure of an unknown compound at 25 degrees C is 94.6 Torr and its enthalpy of vaporization is 30811 J/mol. Estimate the normal boiling point of this compound. assume the enthalpy of vaporization is independent of temperature.
Can someone please help me I need to A. Write the complete equation for each reaction that produced a precipitate
The combustion of ethane produces carbon dioxide and steam: 2C2H6 + 7O2 --- 4CO2 +6H20 How many moles of CO2 are produces when 5.55 mol of ethane are burned in an excess of oxygen.
How much heat (in ) is required to warm 12.0 of ice, initially at -12.0, to steam at 114.0? The heat capacity of ice is 2.09 and that of steam is 2.01 .
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