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1 starting with a 10 solution and making a series of 1100 dilutions how many dilutions must you make to prepare a 01
an electric eel delivers a current of 085a to a small pencil-thin prey 15cm longif the eels bio-battery was charged to
a battery delivers 254a to a resistor rated at 460 when it is connected to a 215 resistor it delivers 498a a determine
which emits more sox per unit amount of electricity produced a coal-fired plant with a 90 efficient so2 scrubber or an
the solubility iof sodium chloride in water is 359 g nacl100 g of water at 25 degrees celsius calculate the mass
a 120-v motor has mechanical power output of 250 hp it is 90 efficient in converting power that it takes in by
a luminous object is 340m from a wall you are to use a concave mirror to project an image of the object on the wall
a rectangular block of glass n 152 surrounded by a liquid with n 170 a ray of light is incident on the glass at point
you are standing at rest with respect to the earth holding a lance which you measure as 10 meters long and a knight
benzene has a heat of vaporization of 3072 kjmol and a normal boiling point of 801 degrees celsius at what temp would
nitrogen oxides undergo many interesting reactions in the environment and in industry given the following information
at 25c what is the hydroxide ion concentration oh- in an aqueous solution with a hydrogen ion concentration of h27 x 10
oxygen and 100 moles of carbohydrate c12h22o11 per day are supplied to a continuous flow reactor the species combust in
a mass of 05 kg is attached to the end of a massless spring of spring constant 075 nm it is released from rest from an
the equilibrium constant for a certain reaction decreases from 891 to 35 10-2 when the temperature increases from
what mass of sucrose should be combined with 454 g of water to make a solution with an osmotic pressure of 885 atm at
when a quarterback throws a quick pass he pushes on the ball with constant horizontal force for 010 sec while his hand
find the molality of the solution prepared by dissolving 0238 g camphor c10h16o in 155 g
a boy pulls a 50 kg sled 100 m along a horizontal surface at a constant speed the coefficient of kinetic friction is
exposure to high doses of microwaves can cause damage estimate how many photons with wavelength 12 cm must be absorbed
a railroad engine weighs three times as much as a freight car if the engine coasts at 9 km per hour into a freight car
1 to what volume should you dilute 400ml of a 465m ki solution so that 270ml of the diluted solution contains 395g of
a bug that has a mass mb 3 g walks from the center to the edge of a disk that is freely turning at 20 rpm the disk has
write a series of balanced equations for all the reactions of the catabolism of glucose into 2 molecules of
the half-life for a first-order reaction is known to be 680 seconds at a given temperature what is the rate constant at