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In a constant-pressure calorimeter 70.0mL of 0.310 M Ba(OH)2 was added to 70.0mL of 0.620 M HCl. The reaction makes the temperature of the solution to increase from 24.04 °C to 28.26 °C. If the solution has the same density as well as specific heat as water, define what is PH for this reaction per mole of H2O produced? Presume that the total volume is the sum of the individual volumes.
How many of these nuts would a 67kg person have to eat to obtain enough energy to bike (racing)for 40min?
6.48g of NAH2PO4 and 21.96 g of K2HPO4 are dissolved in sufficent water to make a liter of solution. Caluclate the ph of the resulting solution.
The concentration of a chemical degrades in water according to first-order kinetics.The degradation constant 0.2 day^-1.If the initil concentration is 100.0 mg.L^-1.how many days are required for the concentration to reach 0.14 mg.L^-1
Utilizing molecular orbital diagrams, explain why ethylene plus ethylene cycloadditions don't take place thermally but are allowed photochemically.
Explain how do you find out maximum percent recovery from recrystallization when you are given solubility at 60 C. and 0 C
Nitrogen gas reacts with hydrogen gas to make ammonia(NH3). 15.5 L of N2 reacts at STP to make 30 L of ammonia. What is the percent yield?
What is the maximum amount of work that can be obtained by the combustion of this butane if the gas is first brought to a pressure of 1.00 atm and the temperature is brought to 25 oC? Assume the products are also returned to the same temperature a..
The student dissolved the tablet in 25.00 mL of a standardized HCL solution containing 1.627 x 10^-2 mol of HCL. The back-titration of the excess HCL required 7.83 mL of 1.035M NaOH solution.
Basically it is an immobilized form of p-toluenesulfonic acid, an organic-substituted sulfuricacid. Explain what advantage does this catalyst have over using concentrated sulfuric acid
Calculate [H2S], [HS -], [S2-], [H3O+], pH, [OH -], and pOH in a 0.15 M solution of the diprotic acid hydrosulfuric acid. Calculate [H2C3H2O4], [HC3H2O4?], [C3H2O42?], [H3O+], pH, [OH?], and pOH in a 0.197 M solution of the diprotic acid malonic ac..
A calorimeter contains 125 g of water at 26.1°C. A block of metal with a mass of 25 g is heated to 96.5°C and then placed in the water in the calorimeter.
when 12.3 g of an unknown non-volatile non-electrolyte x was dissolved in 100. g of methanol the vapor pressure of the
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