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If 200. mL of aqueous 0.862 M HCl is mixed with 200. mL of aqueous 0.431 M Ba(OH)2 in a constant-pressure calorimeter of negligible heat capacity. The initial temperature of both solutions is the same at 20.48ºC. The neutralization reaction H+(aq) + OH-(aq) ? H2O(l) has a ?Hº = -56.2 kJ/mol. What is the final temperature of the mixed solution? (Assume all solutions have a density of 1.00 g/cm3 and a specific heat capacity of 4.184 J/g•ºC)
A 10.0 mL solution of 0.300 M NH3 is titrated with a 0.100 M HCl solution. Calculate the pH after the addition of 20.0 mL of the HCl solution.
If the surface area of a human body is 16,100 square centimeters, what is the total weight of the atmosphere on a human body
Calculate the equilibrium amounts if initially 0.1 moles H2 0.2 moles I2 are mixed and equilibirum is established at 300K. Kc at this temperature is 70.
Which of the following will react with Benedict's reagent?
When comparing the successive ionization energies of an element, an unusually big increase in ionization energy is seen when
A 10.0 mL aliquot of the solution is titrated with a standard 0.101 M KSCN solution, requiring 7.0 mL to reach the red Fe(SCN)2+ end point. Calculate the percent mass of silver in the sample.
liquid water and sealed at 25C and a pressure of 1.00 bar. What is the pressure if the temperature of the system is raised to 60.0C?
Rank the following reactions in terms of increasing ?E for the reaction system (from most negative to most positive). All occur at a constant pressure of 1.000 atm.
Write ionic and net ionic equations to show how limestone reacts with HNO3 and H2SO4 to neutralize them. How would you be able to tell if the neutralization process was working
The mass ratio of sodium to fluorine in sodium floride is 1.21:1. a sample of sodium fluoride produced 26.5g of sodium upon decomposition how many grams of fluorine was formed.
Calcium carbonate and sand mixture with weight of 4 grams is reacted with excees of HCl results in the production of carbon dioxide then find out the percent of calcium carbonate in the original mixture?
How many grams of ice at -9.4 can be completely converted to liquid at 6.2 if the available heat for this process is 5.96×103? For ice, use a specific heat of 2.01 and = 6.01.
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