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Calculate the heat released when 71 g of steam at 116 degrees C is converted to water at 39 degrees C. Assume that the specific heat of water is 4.184 J/g C, the specific heat of steam is 1.99 J/g C and DeltaHvap is 40.79 kJ/mol for water.
A calorimeter containing 200.0 mL of water was calibrated by carrying out a reaction which released 15.6 kJ of heat. If the temperature rose 3.25 degrees celcius then the heat capacity of the calorimeter inclusing the water is?
The equilibrium constant for the reaction, 2HI = H2 + I2 is 0.49. Calculate the number of moles of hydrogen produced when one mole of HI
Calculate the molality of a calcium chloride solution prepared by dissolving 69.34 grams of calcium chloride in 638.7 grams of water.
What mass of oxygen will react with 2.64g of magnesium? 2Mg(s)+O2(g)-->MgO(s)
Using the information below, calculate the mass of benzene in each phase and find the total mass of benzene at the site.
Use the Henderson-Hasselbalch equation to calculate the of each solution: a solution that contains 0.600% C5H5N by mass and 0.960%
How many grams of magnesium chloride could be formed from the reaction of 6.82 g of magnesium with excess HCl?
You are given solutions of HCl and NaOH and must determine their concentrations. You use 27.8 mL of NaOH to titrate 100. mL of HCl and 22.8 mL of NaOH to titrate 50.0 mL of 0.0790 M H2SO4.
Calculate the change in pH when 9.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
Calculate the voltage difference between two points of corroding iron differing only in their partial pressure of oxygen
sketch the qualitative molecular orbital diagram for the complexes.
What is the partial pressure of hydrogen gas in a mixture of hydrogen and helium if the total pressure is 588 mm Hg and the partial pressure of helium is 445 mm Hg?
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