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A 25.0 mL sample of 0.297 M triethylamine, (C2H5)3N, is titrated with 0.279 M perchloric acid.
At the titration midpoint, the pH is _________.
Use the Tables link in the References for any equilibrium constants that are required.
Problem- A 2.5 g sample of French fries is placed in a calorimeter with 500.0 g of water at an initial temperature of 21°C. After combustion of the French fries the water has a temperature of 48°C. What is the caloric value (kcal/g) of the Frenc..
The equilibrium constant (Kc) for the reaction 2HCl(g)+Cl2(g)yields H2(g)+Cl2(g) is 4.17X10^-34 at 25 degrees C. What is the equilibrium constant for the reaction H2(g)+Cl2(g)tields 2HCl(g) at the same temperature
when answering include an explanation balanced chemical equations andor calculations where appropriate.in a acid-base
A bicycle tire is filled with air to a pressure of 85.0 psi at a temperature of 19°C. Riding the bike on asphalt on a hot day increases the temperature of the tire to 58°C. The volume of the tire increases by 2.8%. What is the new pressure in the ..
How many moles of oxygen gas are required to completely react with 6.20 moles of carbon according to the balanced reaction equation shown below?
The end point is reached when 31.52 ml of the thosulfate solution is added. What is the molar concentration of the bleach solution. What is its mass percent
Consider a pipe with a length of 43.5 cm. If the temperature of the air is 19.5 oC and the pipe is closed in one end and open in the other, what is the frequency of the third harmonic for the pipe? Post your answer in hertz (Hz) and with 3 signifi..
Use the Boltzmann equation to calculate the excited-state and ground-state population ratio for HCl (g*/g0=1) at room temperature (25 oC). The frequency of the absorption from the ground to the excited state is 2885 cm-1. What is the population ra..
When 0.78 g of an unknown gas in contained solely in a 560 mL container, the pressure is 780 Torr at 5 degrees Celcius. What is the molar mass of the gas in grams/mole?
A sample of neon is collected at 2.7atm and 12.0C.It has a volume of 2.25L. what would be the volume of this gas at STP.
Explain Tertiary treatment of waste water to reduce water pollution.
Question- This is about extracting organic compounds from aqueous solutions. Will the organic phase be the upper or lower layer when each of the following solvents is mixed with water
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