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A cylinder, with a piston pressing down with a constant pressure, is filled with 2.20 moles of a gas (n1), and its volume is 41.0 L (v1). If 0.800 mole of gas leak out, and the pressure and temperature remain the same, what is the final volume of the gas inside the cylinder?
Calculate the following to determine Kc for FeSCN2+. a,) moles Fe3+ initially present. b.) moles SCN- initially present
What are the arguments in favor of the hypothesis that the spliceosome is a ribozyme. How could you test this hypothesis
Magnesium metal reacts with hydrochloric acid to form magnesium chloride and hydrogen gas. Suppose we react an excess of magnesium metal with 20.0 ml of a 3.00M solution of hydrochloric acid and collect all the hydrogen in a ballon at 25C and 1.5 ..
One isotope has a mass of 44.0 amu and has a neutral abundace of 69.5% while the other isotope with the mass of 46.08 amu.
Arrange the following compounds in order of increasing acidity: Benzenethiol, cyclohexyl mercaptan, cyclohexanol
How much energy must be supplied to break a single 21Ne nucleus into separated protons and neutrons if the nucleus has a mass of 20.98846 amu. What is the nuclear binding energy for 1 {\rm mol} of {\rm ^{21}Ne}
A 0.12M solution of a weak acid HA has pH = 2.49. What is the Ka of this acid.
The organic solvent pyridine, C5H5N (aq) is a base with a strong irritating odor. Calculate the pH of a 0.300 M aqueous solution of PYRIDINe at 25 degrees Celcius.
consider a van parked in a lot outside a professional football stadium in atlanta ga on a sunday afternoon. one ounce
The total molarity of acid and conjugate base in this buffer is 0.100 . A student adds 6.60 of a 0.340 solution to the beaker. How much will the pH change? The of acetic acid is 4.760. Express your answer numerically to two decimal places. Use a m..
Make a FLOW CHART on how a mixture of phenol, benzoic acid, p-nitroaniline and anthracene can be seperated by EXTRACTION.
Calculate the concentration of Cu2+ ion in this standard solution if the stock solution was 0.0200 M Cu2+.
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