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Determine the total amount of solute that will be extracted by the ether, K=1.0? An aqueous solution which is having 5.0 g of solute in the100 ml is extracted w/three 25 ml portion of diethyl ether
A transformer is to be employed to give power for a computer disk drive which requires 5.4 V (rms) rather than the 120 V (rms) from the wall outlet. The number of turns in the primary is around 395
Find out the equivalent mass of the unknown solid acid in gram per mole of H+ if an acid sample of mass 0.730g needed 32.50 mL of 0.09486 M NaOH to neutralize where 1.05 mL of 0.1015 M HCl was used
Determine the numbers of grams of iron could be produce from the 220. Grams of Fe3O4, assume that AL is present in excess?
A vertical spring having a spring constant of 1.86 N/m consists of a 0.32-kg mass joined to it, and the mass moves in a medium having a damping constant of 0.025 kg/s. The mass is released from rest
What is the estimated molarity of NaOH in this solution when the stock NaOH solution was prepared by dissolving the 40. g of solid NaOH in 10 L of solution.
A bungee jumper of 89 kg is enjoying an afternoon of jumps. The first oscillation of jumper consists of amplitude of 14 m and a period of 4 s. Treating the bungee cord as a spring with no damping,
A sample which is having .305 g of potassium hydrogen phthalate was dissolved in the 25.00 mL of distilled water. If 15.00 mL of a stock NaOH solution were needed to totally react all the p
If 2.54 grams of S are reacted with the oxygen, determine the volume of SO2 gas produced at the 30.5 degrees C and1.12 atm.
The piston then moves up and down, driven through a force given by (27.0 N) cos [(17.1 Hz)t]. (i) Find out the maximum displacement from its equilibrium position which the mass can reach?
A point charge having 5.1 μC is positioned at the center of a sphere having a radius of 7 cm. The Coulomb constant is around 8.98755 × 109 Nm2/C2, and the acceleration of gravity is 9.8 m/s
Under the same conditions of pressure and temperature, 9.56 mL of a mixture of CO and CO2 effuse through the hole in the same amount of time. In 2.00 min, 28.7 mL of He effuse through a small hol
The suitable metric unit for measuring or explaining the size of part of aspect of car. Find practical reasons for wanting to know sizes of the parts or aspects of car?
Determine how fast must the bat fly, Vb, to hear a beat frequency of around 205 kHz?
An object is initially at xi = 0 cm position of a meter stick positioned on the x-axis. A converging lens having focal length of 26.0 cm is fixed at the position 32.0 cm. Then we slowly slide the o
i) An electric field having magnitude 4330 N/C is exerted all along the x axis. Compute the electric flux via a rectangular plane 0.377 m broad and 0.74 m long when the plane is parallel to the yz
Determine the power of thermal radiation emitted through a sphere with a surface area fo 2.5m^3, an emissivity of 0.7 and a temperature of 250 deg-C?
What is the molecular weight of the unknown gas? An effusion apparatus can be used to determine molecular weights. In one experiment the effusion of CHCl3 is detected to be 10.35 min and in a
When the rocket consists of an initial mass of around 6500 kg and ejects gas at a relative velocity of magnitude 1900 m/s, determine how much gas should it eject in the first second to encompass an
Determine the pH of the resulting solution if the 25 mL of .432Mmethylamine, CH3NH2 is added to 15 mL of .234M HCL?
A slit of width 0.20 mm is illuminated having monochromatic light of wavelength 550 nm, and a diffraction pattern is made on a screen 1.2 m from the slit. Determine the widths of the second and thir
48.12 g of a metal at 98.8 degrees Celsius are mixed in the same calorimeter with 50.0 mL of water at 22.0degrees Celsius. The final temperature of the mixture is 34.1degrees Celsius.
Determine the mass of zinc reacted at the 298K, 1.00atm, if 50.0mLhydrogen gas is evolved in reaction zinc with hydrochloric acid solution.
When the ball strikes you and bounces off your chest, so that afterwards it is moving horizontally at 8.00 in the opposite direction, find out your speed after the collision?
What is the half reaction for the deposition of silver if a constant electric current deposit 0.365g of silver metal in the 12960 seconds from a solution of silver nitrate which is having the