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In the first determination, a student heated the solution of hydrogen peroxide and sulfuric acid before titration. Later the student discovered that the percent H2O2 derived from this determination was less than the percents obtained from the second and third determinations, both performed at room temperature. Briefly explain.
For which set of values of DH and DS will a reaction be spontaneous (product-favored) at all temperatures
A 14.0 L gas cylinder is filled with 8.00 moles of gas. The tank is stored at 9 degrees celsius . What is the pressure in the tank
When the flask is allowed to cool the vapor condenses and aire again refulls the flask. Re weighing the flask and figure out the the wight of the unknown vapor which filled the flask during the boiling. Is the error in volume measurement or the err..
The daily energy requirement for an active adult human is around 2500 calories per day. A nutritional calorie is equal to 4.2 kJ of energy. If each ATP contains -30 kJ/mol under standard conditions, how many molecules of ATP does the body require ..
How Many Grams of CaCl2 should be dissolved in 500 ml of water to make a .20 M solution of Calcium Chloride
A chemist performed a titration experiment in order to determine the concentration of a given aqueous solution of HCl (an acid). She pipeted 20.00 mL of the HCl solution into an Erlenmeyer flask.
Calculate the maximum mass of calcium metal that should be used in this experiment with a 50mL eudiometer tube for gas collection. Assume that the hydrogen generated occupies 45 mL at STP. The experiment is: reaction of .054 g of Al with 100 mL of..
Assume that the coffee has the same density, 0.997 g/mL, and specific heat capacity, 4.184 \rm J/(g\K), as water over this temperature range. I got 1.64 x 10^20 photons for my answer, but i keep getting told that x 10 is not supposed to be in the ..
why vanderwaals equation of state is not well defined in 1 dimension. and what is ratio of critical constants in 2 dimension and 3 dimension.
A container with a removable partition contains gas A and gas B. Gas A is at 400K and 10.0 atm and gas B is at 400K and 4.00 atm. The partition is removed and the gases mix
A mixture of 8.0mol of H2 (g) and 4.0mol of O2 (g) is placed in a sealed evacuated container made of a perfect insulating material at 28 degrees C. The mixture is ignited with a spark and it reacts to form liquid water. Find the temperature of the..
what is the difference between oxy-mercuration, hydroboration, and acid hydrogenation
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