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Titration of a 20.00 mL sample of a monoprotic weak acid requires 9.86 mL of 0.04899 M NaOH to reach the equivalence point. What is the concentration of the weak acid
The geometric angle BETWEEN the two bonds that connect an alpha-carbon to its nearest neighbors on the polypeptide backbone is approximately 109 degrees. Explain.
A feed mixture of ethanol and water is 40 mole % ethanol. The feed is at 200 degrees Celcius and is at a high enough pressure that it is liquid. It is input into the column through a valve, where is flashes. Column pressure is 1 kg/cm^2. Find the ..
The volume of 350. mL of gas at 25°C is decreased to 135 mL at constant pressure. What is the final temperature of the gas?
If the entropy of a collection of molecules in 50,000 boxes is 3.73E-20 J/K, how many molecules are there
What is the maximum amount of CO2 (44.0095 g/mol) which could be formed from 16.42 g of CO (28.0101 g/mol) and 0.24 mol of O2 (31.9988 g/mol)? Answer in units of mol
What prefix is used to name a hydrocarbon with two carbon atoms?
The rate of effusion of a particular gas was measured and found to be 24.0 mL/min. Under the same conditions, the rate of effusion of pure methane (CH4) gas is 47.4 mL/min. What is the molar mass of the unknown gas?
What mass of oxygen gas, measured at STP, is required in order to release 8300 kJ of heat to the surroundings from the combustion reaction shown
write out the mechanism for alcoholysis of acetyl chloride with isopropyl alcohol. will steric factors slow this reaction down in a way
The reaction for the decomposition of dinitrogen pentoxide to form nitrogen dioxide and oxygen gas has the rate constant 1.7 x 10-3 s-1. This is a first order reaction.
Assume you have a mixture of gases that contains 3.50 L of helium, some argon at 1.03 atm, and some neon at 27 degrees C. For which gas(es)
a system conducts 192 cal of heat to the surroundings while delivering 322 cal of work. what is the change in internal energy of the system (in cal)?
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