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A sample of oxygen gas has a volume of 387 mL at a temperature of 15.3 C What temperature (in C) is required to change the volume to 439 mL under constant pressure
A 1.00 Kg ball is shot out of a cannon inclined at 40 degrees, by a spring initially compressed by 0.500 m. Where does the ball land relative to the cannon
How many jules of energy are needed to change 275 g of water from 15 degrees celcius to steam at 50 degrees celcius
The positron is a particle with the same mass as an electron but charge +e. what's the radius of its trajectory in the bubble chamber
Detarmine the resulting Nitrate ion concentration when 95 ml of 0.592m potassium nitrate and 145.5ml of 1.770m calcium nitrate are combined
What is the Na concentration in 3.25M Soduim Sulfate, 1.5M Sodium Carbonate, 0.885 Sodium Bicarbonate
A crankshaft with a diameter of 3.0 cm, rotating at 2900rpm comes to a halt in 1.20s. How many revolutions does the crankshaft make as it stops
A m = 1.30-kg block is pushed against a spring with negligible mass and force constant k = 580 N/m, How far does the object travel up the incline before starting to slide back down
Pure copper may be produced by the reaction of copper(I) sulfide with oxygen gas as follows: Cu2S(s) + O2(g) ? 2Cu(s) + SO2(g) If 0.330 kg of copper(I) sulfide reacts with excess oxygen, what mass o
Two blocks with different mass are attached to either end of a light rope that passes over a light, frictionless pulley that is suspended from the ceiling. what is the mass of each block
Assume you have a jar of pulverized rock to test. Create a detailed 4-step procedure describing how you expect to go about doing this.
You are asked to design a spring that will give a 1200-kg satellite a speed of 3.50 m/s relative to an orbiting space shuttle. What distance must the spring be compressed
A second order reaction of the type A + B--> P was carried out in a solution that was initially .075 mol dm^-3 in A and .050 mol dm^-3 in B. After 1.0 h the concentration of A had fallen to .020m
How would you change the reaction conditions of acid-catalyzed esterification to favor ester hydrolysis rather than ester formation
Phosphatidylethanolamine and PIP2 containing identical fatty acyl residues can be hydrolyzed at the same efficiency by phospholipase C. Will the hydrolysis products of the two lipids have the same e
A 2345 kg car plans to round an unbanked corner with a radius of 34m at a speed of 45mph. What is the maximum speed at which the car could make the turn if the coefficient of static friction is 1.5
Each has a unique set of wavelengths associated with it, how are these different wavelengths generated
At standard temperature and pressure (0 and 1.00 ), 1.00 of an ideal gas occupies a volume of 22.4 . What volume would the same amount of gas occupy at the same pressure and 30
A rock is travelling in a horizontal circle due to a string with a tension of 100.5 N that is 2.0 m long. What is the tangential speed of the rock
Propionic acid and methyl acetate are isomers. Which has the higher boiling point and why? Which one would have the greater Rf value on TLC? Why
An air hockey puck is attached to a string with a length of .45 m and is set in a circular motion with a period of 2.0 s. What is the tangential speed of the puck
Find the conditional formation constant for Ca(EDTA)2- at pH 9.00, where log Kf is 10.65 and ?Y4- is 0.041.
A car with a mass of 1234 kg is travelling around a circular track with a radius of 100.m and a tangential velocity of 23 m/s. Determine the centripetal acceleration of the car
A buffer solution contains 0.71 mol of boric acid (H3BO3) and 0.53 mol of sodium dihydrogen borate (NaH2BO3) in 4.00 L. The Ka of boric acid (H3BO3) is Ka = 5.8e-10. What is the pH of the buffer aft
At two temperatures, 85 K and 135 K, the vapor pressures of a certain liquid were found to be 540 Torr and 830 Torr, respectively. From this information, determine the molar enthalpy of vaporization