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What is the equilibrium concentration of carbon dioxide in water that is in contact with air at 25 .C and 0.982 atm. The mole fraction of CO2 in air is 3.01 . 10-4. The Henry's law constant for carb
What volume of 0.125 M HClO4 solution is needed to neutralize 45.00mL of 8.70×10-2 M NaOH?
A 4.78-{g} sample of aluminum completely reacts with oxygen to form 6.67 {g} of aluminum oxide. Calculate the mass percent composition of aluminum in aluminum oxide .
After equilibrium was established, it was found that 36.0 percent of the NOCl had dissociated. What is the equilibrium partial pressure of N2O4? Calculate Kp and Kc.
If 18.3mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentration of the ammonia?
The rock in a particular iron ore deposit contains 80% Fe2O3 by mass. How many kilograms of the rock must be processed to obtain 1400kg of iron?
Provide the correct name for the following peptide. Ala-Ala-His-Phe-Lys-Asp-Asn-Phe What is the N-terminal amino acid? The C-terminal amino acid? What is the net charge on the peptide at pH 1.0?
If the pure benxophenone melted at 48.1 degrees C, what is the molecular weight of the unknown compound? The Kf for benxophenone is 9.8 degrees C/m.
Imagine that you drive your car high in the mountains when you have a minor accident. How can you apply the gas laws to explain what happened with the airbag?
The pressure in container (2) was also doubled by pumping some argon into it. Did the partial pressure of He, pHe, change in these two containers?
A 122 piece of metal is heated to 285 and dropped into 84.0 of water at 26. If the final temperature of the water and metal is 58.3, what is the specific heat of the metal?
The molecules of argon at 0 degree celsius and 1 bar of pressure. (d) what values would be obtained at 1000 degree celsius and 1 bar? (e) At 0 degree celsius and 100 bar?
A major oil company has used a gasoline additive called MMT to boos the octane rating of its gasoline. What is the emperical formula of MMT if it is 49.5% C, 3.2% H, 22.0% O, and 25.2% Mn?
Three equal point charges, each with charge 1.55 , are placed at the vertices of an equilateral triangle whose sides are of length 0.300 . What is the electric potential energy of the system? (Take
What is the mass, in grams, of 55.0 mL of the liquid propylene glycol, a moisturizing agent for foods, which has a density of 1.036 g/mL at 25 degress Celcius?
What is the energy change when the temperature of 14.2 grams of solid gold is decreased from 38.1oC to 24.1oC ?
A 180-g disk sits on a horizontally rotating turntable.The turntable makes two revolution each second. The disk is located 16cm from the axis of rotation of the turntable. What is the frictional for
A satellite is in a circular orbit about the earth at a distance of one earth radius above the surface. what is the speed of the satellite?
Find the force necessary to start the crate moving (at a 21degree angle), given that the mass of the crate is 32kg and the coefficient of static friction between the crate and the floor is 0.54.
An 86Kg person stands on a uniform ladder 4.0m long, that weighs 70N. The floor is rough; hence, it exerts both a normal force, and a frictional force, on the ladder. The wall, on the other hand, i
The organic base is extracted from 225 mL of a 0.175 M aqueous solution of B, that has been adjusted to a pH of 8.00, with 75.5 mL of ether. Only one extraction is performed. Calculate the concentra
The drawing shows three identical rods (A, B, and C) moving in different planes. A constant magnetic field of magnitude 0.45 T is directed along the +y axis. The length of each rod is L = 1.3 m, and
while john is traveling along an interstate highway, he notices a 160-mile marker as he passes through town. later john passes another mile marker, 115. a. what is the distance between town and john
What are the magnitude and direction of the electric field that will allow a proton to fall with an acceleration of 3.5 m/s2?
If only 19% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake?