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If the volume of the flask is presumed to be 125mL instead of the measured volume, would the computed molar mass of the liquid be too high or else too low or unaffected by the experimental error? Explain
Draw the structures of the products of the neutralization reaction between pyridine and propanoic acid. Include lone pairs on the appropriate atoms.
the normal boiling point of menthanol is 64.7 degrees celcius, and its molar enthalpy of vaporization is 71.8 kj/mol. Calculate the value of delta S when 1.00 mol of CH3OH (liquid) is vaporized at 64.7 degrees celcius.
a sample of an ideal gas at 15.0 atm and 10.0 l is allowed to expand against a constant external pressure of 2.00 atm
How many moles of Al2S3 are produced using 12.8 grams of Al and 7.59 x 10-2 moles of S8
basketball with a volume of 3.50 Liters is left in a car when the temperature is 298 K. What will the volume of the ball be as the car heats up to 305 K during the day?
Determine the pH of the acid solution before the titration begins and the pH at the equivalence point when 50.0 mL of the NaOH has been added. The Ka of HF is 7.2*10^-4
A solution is made by mixing 12.0 g of NaOH and 75.0 mL of .200 M HNO3. Write a balanced equation for the reaction that occurs between the solutes. Calculate the concentration of each ion remaining in solution. Is the resultant soluiton acidic or ..
the heat capacity for the heat capacity of the calorimeter in calculating the enthalpy of reaction. What effect would ignoring this have on the calculation?
Acetic acid (C2H4O2) is weak acid. Write the equilibrium chemical equation for an aqueous solution of acetic acid. Derive the acid dissociation constant (Ka) from the chemical equation at equilibrium.
a helium balloon with a volume of 410 mm is cooled from 48 deg celsius to -37 deg the pressure on the gas is reduced
The thermochemical equation for the formation of ammonia from elemental nitrogen and hydrogen is as follows: N2(g)+3H2(g)--> 2NH3 (g) ΔH= -92.2kj
explain the difference between adding naoh in methanol completely dissolved and adding straight naoh to a triglyceride
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