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find the ph during the titration of 2000 ml of 01350 m benzoic acid c6h5cooh ka 63 multiplied by 10-5 with 01350 m
two positive point charges q1 12c and q2 48c are a distance 025 m apart find all the points where the total electric
what is the buffer-component ratio pr - hpr of a propanoate buffer that has a ph of 557 ka of hpr 13 multiplied by
an unknown substance has a mass of 0125 kg and an initial temperature of975degc the substance is then dropped into a
what are the h3o and the ph of a propanoate buffer that consists of 048 m ch3ch2coona and 034 m ch3ch2cooh ka of
consider a solution formed by mixing 300 ml of 0100 m h2so4 245 ml of 0100 m hocl 250 ml of 0200 m naoh 250 ml of 0100
superman attemps to drink water through a very long straw with his great strength he achieves maximum possible suction
the density of water is 1000 kgm3 while that of ice is 9167 kgm3 if a block of ice is placed in water what volume
a biochemist needs 750 ml of an acetic acid-sodium acetate buffer with ph 450 solid sodium acetate nac2h3o2 and
a circuit consists of one dc power supply providing 20 v and four resistors r1 10 ohm r2 20 ohm r3 r4 40 ohm r1 r2
calculate the ph at the equivalence point in titrating 0110 m solutions of each of the following with 70times10-2 m
sixty-seven million years ago a large asteroid impacted earth it is widely accepted in the field of paleontology that
assume that 290 ml of a 010 m solution of a weak base b that accepts one proton is titrated with a 010 m solution of
in words give step-by-step directions for drawing the mechanism for the reaction of 13-butadiene with hbrgive explicit
the inlet of the pipe shown has a cross sectional area of 2020cm2 and the outlet has a cross sectional area of 750cm2
a spherical water drop 26 m in diameter is suspended in calm air due to a downward-directed atmospheric electric field
initially a mixture contains 0601 mol each of n2 and o2 in an 765-l vessel find the composition of the mixture when
a 260-l vessel contained 00160 mol of phosphorus trichloride 00115 mol of phosphorus pentachloride and 00903 mol of
sodium stearate c17h35coona is a major component of bar soap the ka of the stearic acid is 13 multiplied by 10-5 what
a winch capable of pulling 250 lb must pull a 2800 lb load up a ramp of height 55 ft find the length of the shortest
a sports car accelerates from a standing start to 65 mih in 461 seconds what is the cars acceleration in fts2 how far
a person in a car is driving down a straight road the instantaneous acceleration is decreasing with time but is
you see the boy next door trying to push a crate down the sidewalk he can barely keep it moving and his feet
in the contact process sulfuric acid is manufactured by first oxidizing so2 to so3 which is then reacted with water the