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Using the Debye-Hucket equation, calculate the activity coefficients for the acidic and basic forms of bromocresol green, HX- and X2-, for a solution with an ionic strength of u=0.1M.
C6H12 + 9O2 ----> 6CO2 + 6 H2O 42 grams of cyclohexane burns in excess air to from carbon dioxide and water. How many grams of carbon dioxide and of water vapor are produced
A large pond is 300m by 95m with an average depth of 2.5m. Assuming that the pond is saturated with oxygen, calculate the amount of sugar (C12H22O11) in kg that would be sufficient to completely consume the dissolved oxygen.
If 3.35 g of Cu(NO3)2 are obtained from allowing 2.25 g of Cu to react with excess HNO3, Explain what is the percent yield of the reaction
IF a gas vessel is attached to an open-end manometer filled with a nonvolatile liquid of density 0.993 g/ml. The difference in heights of the liquid in the two sides of the manometer is 32.2 cm when the atmospheric pressure is 765mmHg. Specified ..
if 28.0 ml of .150 m hcl is needed to neutralize all the nh3 from a 2.25-g sample of organic material calculate the
Carbonyl fluoride, \rm COF_2, is an important intermediate used in the production of fluorine-containing compounds.
Calculate the energy that must be transferred as heat to evaporate 1.00 kg of water at (a) 25 degrees celsius and (b) 100 degrees celsius
What is the total number of joules absorbed by 65.0 g of water when the temperature of the water is raised from 25.0 degrees celsius to 40 degrees celsius?
A compound is 40.0% C, 6.70% H, and 53.3% O by mass. Assume that we have a 100 g sample of this compound. The empirical formula of this compound is CH2O.
Which of the following is true about a solution with pH = 5? Answer a. the solution is basic b. the OH- concentration > H+ concentration c. the solution is acidic d. both a and b
What is the cellular free energy change for the phosphofructokinase reaction at 37°C? c) What is the equilibrium constant for the phosphofructokinase reaction
in a laboratory, 6.82 g of Sr(NO3)2 is dissolved in enough water to form 0.500 L of solution. A0.100-L sample is 0.0245 M solution of Na2CrO4.
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