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by means of a rope whose mass is negligible two blocks are suspended over a pulley as the drawing shows with m1 117 kg
under certain conditions mixing furan with maleic anhydride in diethyl ether yields a crystalline solid wth a melting
you could determine ka for benzoic acid by measuring the ph of a 0010 m solution of benzoic acid why is graphical
a variable capacitor in a circuit with a 120v 60-hz source initially has a capacitance of 25uf the capacitance is then
calculate the number of coulombs required to produce 653 g of hg from an aqueous solution of
a transmission line that has a resistance of 05 ohm per km of length is used to transmit 200 mw across 300 miles if the
why can you not prepare a solution of ph8 by diluting sufficiently a 001m solution of hcl with
you have two bar magnets in front of you for the one on the right the primary coil the farthest part is positive and
a 300-f capacitor is fully charged by a 120-v battery the two ends of this fully charged capacitor are then connected
consider the titration of 1000 ml of 0100 m h2nnh2 kb 30 x 10-6 by 0200 m hno3 calculate the ph of the resulting
a block is placed at the bottom of the incline and given an initial velocity v0 directed along the incline the
the correct sequence steps that will result in the synthesis of 12-dichloropropane using acetylene and any alkyl
1-methylcyclohexene and 3-metheylcyclohexene were mentioned as possible products were mentioned as possible products of
two 8ohm resistors are connected in parallel as are two 4 ohm resistors these two combinations are then connected in
if 200 ml of glacial acetic acid pure is diluted to 120 l with water what is the of the resulting solution the density
a 50 cm long solenoid has 100 turns of wire and carries a current of 95 a it has a ferromagnetic core completely
if the valence shell is considered to be n4 how many valence electrons are in a stable ion of a period 4
the vapor pressure of a volatile liquid can be determined by slowly bubbling a known volume of gas through it at a
the following question refers to a solution that contains 148m hydrofluoric acid hf ka 72 x 10-4 and 300m hydrocyanic
a radiator has an emassivity of 90 and its exposed area is 123 m2 the temperature of the radiator is 100 degrees c and
a certain kind of glass has nblue 1560 for blue light and nred 1510 for red light if a beam of white light containing
methanol and sodium sulfate are by-products of synthesis of salicylic acid during which step of the synthesis would
a car with fuzzy dice hanging from the rear view mirror by a single string drives along at a constant 250 msa if the
describe and explain the possible effect on your results of the following experimental errors or variations a you added
consider a spider walking from the top of a stationary beach ball let that angular position 0o the spider finds it