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A sample of methane gas having a volume of 2.80 L at 25 degreesCelsius and 1.65 atm was mixed with a sample of oxygen gas having avolume of 35.0 L at 31 degrees Celsius and 1.25 atm. The mixture was
A satellite would have a mass of 200 kg on the surface of the moon. Determine the weight of the satellite in pounds when it is in orbit 10,000 mi. above the surface of the earth.
A body has a mass of 2000 kg. Determine the weight of the body expressed in N if it is (a) located on the surface of the earth, (b) it is located in a satellite orbiting at an altitude of 30,000 m,
When 7.20 grams of H2SO4 (l) at 22.0oC are poured into a 94.0 gram mixture of ice and water containing 6.15 grams of ice, a solution of sulfurinc acid (aq)forms at a temperature of 13.0 oC.
Assuming that the concentration determined in the previous step corresponds to the inital amount of added NH3 (aq), what is the pH of the solution?
A small point charge having charge Q is fixed a distance h above a thin, infinite sheet of charge with charge density sigma. Determine the force on the point charge due to the line in terms of h, si
An astronaut weighs 150 lbs on the surface of the earth. What does she weigh if she is resting in the space shuttle that is orbiting 200 mi. above the surface of the earth.
A person weighs 200 lb on the surface of the earth. What is the person's mass expressed in slugs. What would the person weigh on Mars expressed in pounds.
In each cycle of a Carnot engine, 97 J of heat is absorbed from the high-temperature reservoir and 63 J is exhausted to the low-temperature reservoir. What is the efficiency of the engine?
A small point charge having charge Q is fixed a distance h above a thin, infinitely long line of charge with charge density lambda. Determine the force on the point charge due to the line in terms o
How many grams of lithium hydroxide are required to completely react 10.8 moles of selenous acid. write the conventional and net ionic equations and identify the type of reaction.
A member of an aircraft maintenance team crew wears protective earplugs that reduce the sound intensity by a factor of 340. When a jet is taking off, the intensity level experienced by the crew memb
Under certain conditions, the averagerate of appearance of oxygen gas in the reaction 2O3(g) --- 3O2(g)is .0012 atm/s-1. How do you find the average rate for dissapearance of O3?
A cowboy fires a silver bullet of mass 5g with a muzzle speed of 257 m/s into the pine wall of a saloon. What is the temperature change of the bullet?
How many moles of potassium chloride are formed when 5.0 moles of chlorine are reacted with potassium bromide to produce bromine and potassium chloride??
Using the Morse equation, which we haven't discussed, I get aninside pressure of 4.8 atm, an outside pressure of 0.48 atm, and a pressure difference of 4.3 atm. What do you think accounts for any di
The acceleration is given by the vector a = 2.0 m/s2 + 5 m/s2 . (a) Find the velocity vector at t = 10.0 s. (b) Find the position vector at t = 1.0 s. (c) Give the magnitude and direction of the posit
A 9.00 g bullet, moving horizontally with an initial speed v, embeds itself in a 1.20 kg pendulum bob that is initially at rest. The length of the pendulum is L = 0.700 m. After the collision, the p
A first order reaction has an Arrhenius constant for the reactionis 4.8 x 1011 sec -1, and an activation energy of 61.4 kJ. At what temperature (in Celsius) is the rate constant equal to 0.459 sec-1
Reconsider the same situation, except that now there is a point charge of +q on the plane and a point charge of -q at the other end of the guideline. In this case, the line breaks when the kinetic e
Electrolysis of an alkaline earth mtal cloride using a current of 5.00 A for 748 sec. deposits .471g of metal at the cathode. what is the identity of the alkaline earth metal chloride?
A highway is to be built between two towns, one of which lies 87.0 km south and 50.0 km west of the other. (a) What is the shortest length of highway that can be built between the two towns, and (b)
Air is about 78.0% nitrogen moleculesand 21.0% oxygen molecules. Several other gases make up there maining 1% of air molecules.
A gas is confined to a cylinder with a movable piston. A small weight is placed on the piston after which the system reaches equilibrium, shown above. If the weight of the piston and the additional