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04768 g of oxalic acid dihydrate h2c2o4 bull 2h2o was weighed out and titrated with sodium hydroxide naoh according to
250 moles of a monatomic ideal gas expand adiabatically from an initial temperature of 300k and an initial volume of
what kind of alcohol is formed when ethyl formate reacts with a grignard reagent and what structural feature
a bacterial culture isolated from sewage produced 355ml of methane ch4 at 31degrees celcius and 753 mmhg whats the
a person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 325 db
a person consumes a meal containing 17 kcal what is the power this meal produces if it is to be burned off due to
what is the ph of a solution prepared by diluting 2500 ml of 0020 m baoh2 with enough water to produce a total volume
a system consists of 40 kg of water at 85 degrees celsius 35 j of work is done on the system by stirring with a paddle
what spectral features including mass spectra ir spectra proton spectra and carbon spectra allow you to differeniate
a simple pendulum is constructed from a mass of 2 kg and a massless string of length 35 m the pendulum is pulled 55 cm
the anomalous zeeman effect is studied in an advanced student laboratory a spectral lamp is filled with the vapor of an
calculate the pressure exerted on the ground by a 57 kg person standing on one foot assume that the bottom of the
equal mass samples of three liquids a b and c are obtained the initial temperatures are 14 c 24 c and 40 c for liquids
what is the minimum diameter mirror on a telescope that would allow you to see details as small as 485 km on the moon
a puck slides on a surface for 56 m before it stops if it was moving at a velocity of 15 ms and has a mass of 12 kg
explain why the major product of bromination of vanillin was 5 bromovanillin and not 2 bromovanillin or 6
a tennis player hits a 145 kg tennis ball with a racket of mass 25 kg if he hits the ball with a velocity of 75 ms and
what is the nucleus with which an alpha particle can react to produce lanthanum-133 plus four
a string fixed at both ends is 898 m long and has a mass of 0125 kg it is subjected to a tension of 920 n and set
what is the percent by mass concentration of a solution of 500 g sugar in enough water to make 350 g
all chemical reactions spontaneous and non spontaneous require an energy push in the form of energy of activation why
1 a sodium surface is illuminated with 300 nm wavelength light if the stopping potential is found to be 168 v
lightbulbs with the power ratings giving in the figure are connected in a circuit as showna what current does the
the choice of precipitating reagent is important briefly explain what the consequences would be if excess 6m naoh
an eagle with 18m wingspan flaps its wings 21 times per minute each stroke extending from 42u2218above the horizontal