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Explain what is the total molar oncentration of all the ions in .020 M solutions of the subsequent salts in water?
.020 M KCl
.020 M CuSO4
.020 M CaCl2
While an additional mol of gas is added at constant temperature as well as volume to a flask containing 2.00 mol of gas at 25oC as well as 1.00atm pressure the pressure increases to 1.60 atm.
What is the molarity of the acetic acid in this vinegar. If the density of the vinegar is 1.006 g/ml, what is the mass percent of acetic acid in the vinegar
the first order rate constant for a reaction at 700 oc is 8.98e-03 s-1. if the activation energy for the reaction is
It takes 254kj/mol to eject electron for a certain metal surface. What is the longest wavelength of light that can be used to eject electrons from the surface of this metal via the photoelectric effect.
You make 10-4 M solutions of NaOH and NaHCO3 and a 10-4.3 M solution of Na2CO3. You use pure distilled water that has been fully degassed.
Finely divided sulfur ignites spontaneously in fluorine gas to produce sulfur hexafluoride, as in the following equation S(s) + 3F2(g) --> SF6(g)
Draw the major organic product for (2R,3S)-2-bromo-3-methylpentane reacting with the given nucleophile. Indicate stereochemistry if necessary, including H\'s, at each stereogenic center.
A Scientist uses an ultra-high vacuum chamber that has a pressure of 6.5x 10^-12 torr. If the temperature is 298 K, how many molecules are there in 2.0 cm^3? What is the molar volume
Explain would the calculated molarity of NaOH be too high or too low If the KHP weighed in your experiment today was contaminated with some unknown inert substance.
A patient needs 2.40×10-2 of a sulfa drug. There are 8.00 tablets in stock. How many tablets should be given?
An insulated piston is compressing a perfect gas, suddenly the piston stops compressing the gas since there is no heat exchange to external environment, will the piston compress, expand, or stay the same and why?
Ten kg of steam at 500 bar is expanded at constant pressure until its pressure increases to seven times its initial value of 0.01 m^3. (a) Determine the initial and final temperature of the steam. (b) Calculate the heat that must be supplied to ca..
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