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twenty dietary iron tablets with a total mass of 22131 g were ground and mixed thoroughly then 2998 g of the powder was
a 240 h coil with a resistance of 395times102 ohm is in series with a 486times103 ohm resistor this circuit is
explain why evaporation is a cooling processplease relate average kinetic energy to temperature in your
draw the skeletal structure and write the name of the major organic product obtained in the following reactionsa
a person with a near-point distance of 32 cm is able to get a usable magnification of 12 with a particular magnifying
the elemental mass percent composition of ascorbic acid vitamin c is 4092 c 458 h and 1551 o determine the empirical
a vehicle with wheels whose diameter is 36 inches is traveling at a rate of 30 feet per second determine the number of
a solution is prepared by dissolving 150 g of nh3 in 250 g of water the density of the resulting solution is 0974 gml
a wire loop of radius 050 m lies so that an external magnetic field of magnitude 030 t is perpendicular to the loop the
how many moles of n2o contain the same number of nitrogen atoms as 460g of
a sphere of radius r starts from rest and rolls without slipping along a curved surface dropping through a vertical
consider two different solutions of the same uv-absorbing compound upon uv-analysis solution b gave an absorbance of 15
suppose in the drawing that i1 i2 424 a and that the separation between the wires is 00215 m by applying an external
when 335 ml of 0580 m h2so4 is added to 335 ml of 116 m koh in a coffee-cup calorimeter at 2350degc the temperature
butane c4h10 has a heat of vaporization of 2244 kjmol and a normal boiling point of -04 degrees celsius a 250 ml flask
a mass of 20g is attached to a spring and undergoes simple harmonic motion with a period of t07 s the total energy of
solution a has a ph of 1 and solution b has a ph of 12 if you mix 5 l of solution a and 10 l of solution b and mix them
a charge q 580 x 10-6 is located at the center of a regular tetrahedron a four sided surfaceamp160 finda the total
an organic pesticide mw 1837 is 843 cl a 0627 g sample containing the pesticide plus inert material containing no
an amateur astronomer decides to build a telescope from a discarded pair of eyeglasses one of the lenses has a
a 160 kg mass is attached to a light cord that is wrapped around a pulley of radius 680 cm which turns with negligible
you standardize your naoh solution by titrating a known quantity of sulfamic acid h2nso3h standard it requires 4377 ml
a farsighted woman breaks her current eyeglasses and is using an old pair whose refractive power is 1990 diopters since
you prepare an naoh solution with a concentration of approximately 0200 m in order to standardize the solution you will
a 2000 ml solution of nitric acid hno3 required 257 ml of 01313 m naoh to reach a bromthymol blue end point what is the