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Suppose if Nicotinic acid, HC6H4NO2 is a weak monoprotic acid. A 5.7x10-2 M nicotinic acid is 1.6% ionized. Define what is the Ka for this acid?
If an automobile airbag has a volume of 9.80 L, what mass of NaN3 is required to fully inflate the airbag upon impact under conditions of atmospheric pressure (1.00 atm) and room temperature (25 C).
Calculate the concentrations of all species in a 0.700 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 and Ka2 = 6.3× 10-8.
If the pressure exerted by ozone, in the stratosphere is 3.0*10^-3 atm and the temperature is 253 K, how many ozone molecules are in a liter?
the activation energy for a particular reaction is 95 kjmol. by what factor will the rate constant increase when the
the pressure inside a particular 5.00 l bottle of gas must be 1 atm or less in order to open the bottle cap. to what
The pKa of protonated diethylamine is 10.94. What are the major forms present in a dilute soultion that is equimolar in acetic acid and diethylamine
topic global warming is one of the most serious environmental problems today as it is caused primarily by the burning
What are those byproducts? to remove the byproducts from the organic phase
When acid is added to a solution of sodium hydrogen carbonate (NaHCO3), vigorous bubbling occurs. How is this reaction related to the existence of carbonic acid (H2CO3) molecules in aqueous solution
A sample of 1.00 mol of perfect gas molecules, originally at 1.00 atm, with a molar heat capacity at constant pressure of 7/2 R is put through the following cycle:
Write the formula for the ion formed when each of the following elements loses its valence electrons?
Calculate the weight of benzene codistilled with each gram of water and the percentage composition of the vapor produced during a steam distillation. The boiling point of the mixture is 69.4 degrees C. The vapor pressure of water at 69.4C is 227.7..
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