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calculate the molality of a solution that is prepared by mixing 255 ml of ch3oh d 0792 gml and 387 ml of ch3ch2ch2oh d
a 10-m-by-14-m house is built on a 12-cm-thick slab of concrete what is the rate of heat loss through the slab if the
the expressions for the p- q- and r-branches assume that the moment of inertia of the molecule is the same in the
a 215-g bullet is fired from a rifle it takes 215 10-3 s for the bullet to travel the length of the barrel and it exits
0700l of formic acid-formate buffer with a ph of 374 how many milliliters of the two stock solutions of 125m hcooh and
find the length of the space curve rt - tsqrt2 t36 12t -tsqrt2 from the interval 1 lt t lt 2 i understand the
while driving north at 25 ms during a rainstorm you notice that the rain makes an angle of 38 with the vertical while
what is the ph at the equivalence point of a weak base-strong acid titration if 2000 ml of naocl requires 2830 ml of
find the determination of 1 x -3x 2z y x -y z -2x -y 2 x y z y z x z x y 3 x x y z y 2x y - z z -3x
what is the ph of a solution made by mixing 3000 ml of 010 m acetic acid with 3000 ml of 010 m koh assume that the
a ball is thrown from a point 10 m above the ground the initial velocity is 198 ms at an angle of 340deg above the
write the possible polymeric structure formed between sebacoyl chloride and butane-14-diamine what is the appropriate
a ballplayer standing at homeplate hits a baseball that is caught by another player at the same height above the ground
three equal point charges each with charge 125 are placed at the vertices of an equilateral triangle whose sides are
what ph is needed to increase the solubility of mnoh2 to 25 x 10-3m ksp for mnoh2 16 x
grignard reagent made from magnesium and 1-chloro-2-methylpropane with lables charges on the c-mg
a small plane is flying directly west with an airspeed of 340 ms the plane flies into a region where the wind is
solve an equilibrium problem using an ice table to calculate the of each of the following solutionsa 16 m ch3nh2b 16 m
a kite is hovering over the ground at the end of a straight 45-m line the tension in the line has a magnitude of 14 n
a chemist burns a a saltine cracker in a calorimeter containing 20 kg of water the water temperature increases from
the standard enthalpy of atomization of an element is the energy required to convert one mole of an element in its most
a hot-air balloonist rising vertically with a constant velocity of magnitude v 500 ms releases a sandbag at an instant
acyl chloride can hydrolyze in water spontaneously to carboxylic acid in the interfacial polymerization water is used
a tablet containing 5000 mg of aspirin acetylsalicylic acid or hc9h7o4 was dissolved in enough water to make 100 ml of