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A gas sample is known to be a mixture of ethane and butane. A bulb of 200.0 cm^3 capacity is filled with the gas to a pressure of 100.0 x 10^3 Pa at 20.0 degrees C. If the weight of the gas in the bulb is 0.3846 g, what is the mole percent of butane in the mixture?
Why don't you see the effect of rotation on the vibrational frequencies of chromophores in a polyatomic molecule in the liquid phase
The CNOG ion is very unstable and is the reason why the mercuric compound is explosive. On the other hand, mercury cyanate, Hg(NCO)2, is not explosive. The cyanate ion (NCOG) is a stable ion. Use resonance structures and electronegativities to exp..
A sample of CH4 gas is observed to effuse through a pourous barrier in 5.08 minutes. Under the same conditions, the same number of moles of an unknown gas requires 8.63 minutes to effuse through the same barrier.
How many mL of a .1 N solution of NaOH must be added to a 25 mL solution of .1 N HAc to obtain a pH of 9.75? What is the concentration of HAc at this pH
Because the turnover number for both substrates is nearly identical, what factors might be involved that explain the different ratio for the two substrates?
What is the purpose of washing your cyclohexene with saturated sodium bicarbonate. Why do you think it is more practical to wash with a solution instead of adding solid sodium bicarbonate to your cyclohexene
An aqueous solution at 25 °C is 2.28 x 10^-7 M in CuNO3 and 5.03 x 10^-7 M in AgNO3. What is the lowest cyanide concentration at which a precipitate appears
the solubility of n2 in water is 2.2 x 0.0001 g in 100 g of h2o at 20 celcius when the pressure of nitrogen over the
If 400. mL of NO at STP is reacted with 500. mL of O2 at STP, calculate the partial presure of NO2 after the reaction goes to completion. Assume constant volume.
Redox and Thermodynamics 1. Sketch galvanic cells based on the following overall reactions. Show the direction of electron flow, the direction of ion movement through the salt bridge, and identify the cathode and anode.
sand and iron particles that are similar in size and color are mixed together in a beaker. what would be the best
Caproic acid C5H11COOH is found in small amounts in coconut and palm oils and is used in making artificial flavors. A saturated solution of the acid contains 11 g/L and has a pH of 2.94. Calculate Ka for the acid.
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