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A 1.00 L vessel at 0*C contains 0.21 mol N2, 1.3 mol H2 and 1.0 mol CH4. Calculate the pressure of the gas mixture and the partial pressure of each constituent gas in the mixture.
Find the direction and magnitude of the magnetic force exerted on a 250 m length of wire if the current in the wires flows a) horizontally towards the east. B) horizontally towards the south.
When a 50 mL aliquot of 0.05182 M EDTA was mixed with an equal volume of the diluted sample, all three ions were chelated, and a 5.11 mL back-titration with 0.06241 M copper (II) was required.
How many grams of aluminum hydroxide are obtained from 14.2 grams of aluminum sulfide? Balanced Equation of Aluminum Sulfide reacting with water to form aluminum hydroxide Al2S3 + 6H20 ---> 2Al(O
A current of 0.50 A passes through a copper (II) sulfate solution for 15 min. How many coulombs and electrons pass through the cell?
A horizontal beam of alpha particles is injected with a speed of 1.3 x 10^5 m/s into a region with a vertical magnetic field of magnitude .155 T . How long does it take for an alpha particle to move
A 0.5123g sample (molar mass 204.23g/mol) of KHP was dissolved in about 25 mL of distilled water and titrated to the phenolphthalein end point with 28.75 mL of a sodium hydroxide solution. Calculate
How many times would a mole of timbits placed end to end reach from here to Mars and back. Distance from earth to Mars is 7.8 x 10^7 km. (10 to the power of 7).
A 2000 kg car intially moving at 20.0 m/s suddenly slams on the brakes, locks the tires, and begins slidding. The coefficient of kinetic friction between the tires and the street is 0.500. Calculate
An electron moving with a speed of 4.2 x 10^5 m/s in the positive x direction experiences zero magnetic force. When it moves in the positive y direction, it experience a force of 2 x 10^-13 N that p
Write the reaction for the formation of 1 mole of acetic anhydride from 2 moles of acetic acid. Why is the product described as an "anhydride?"
What volume is mililiters of nitrogen, N2 would have to be collected at 0.978 atm at 28.0 degrees C to have a sample containing 0.015 mol?
What is the actual ground-state electron configuration for copper (cu)? Since Copper is an exception to the usual order of filling.
A force holds them in place so that their centers are separated by 8 mm. What will their velocities be after the force is removed and they are separated by a large distance?
A spark causes the CS2(g) to ignite, burning it completely. After reaction, temp returns to 100.0 celsius and mixture of product gases is found to have a pressure of 2.40atm. what is the partial pre
The gun swings up to a height of 18.3 centimeters. What was the dart's speed in meters per second just after firing?
Asoluble iodide was dissolved in water .then excess of silver nitrate,was added to precipitate all the iodide gave ions of siver ioded ,if 1.545g of solluble iodide gave 2.185g of silver iodide.
The asteroid hits the Earth nearly tangentially in the direction opposite to Earth's rotation.
A skier slides horizontally along the snow for a distance of 25 m before coming to rest. The coefficient of kinetic friction between the skier and the snow is µk = 0.090. Initially, how fast w
Aniline (C6H5NH2, Kb = 4.3 x 10^-10) is a weak base used in the manufacture of dyes. Calculate the value of Kn for neautralization of aniline by vitamin C (ascorbic acid, C6H8O6, Ka = 8.0 x 10^-5).
A 290 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal.
In lab we did thermochemistry, where we are supposed to find the heats of solution, heat change of calorimeter and molar heat solution of the salt. I calculated that the calorimeter constant for the
The weight of the block on the table is 454 N and that of the hanging block is 205 N. Ignore all frictional effects, and assuming the pulley to be massless. (a) Find the acceleration of the two bloc
A sample natural gas at STP is 78% CH4 and 22% C2H6 by volume. How many moles of each gas are present in 1.20L of the mixture? Assume ideal gas behavior.
A parallel plate capacitor has a capacitance of 7uF when filled with a dialectric. The area of each plate is 1.5 square meters and the separtion between the plates is 1X10^-5m. What is the dielectri