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what is the molarity of cl- ions in a solution prepared by dissolving 50 g nacl molar mass5844 in 15 l of 0025 m
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an electric oscillator is made with a 28 micro f capacitor and a 72 mh inductor the capacitor is initially charged up
what is the half-life of a compound if 87 percent of a given sample of the compound decomposes in 72 min assume
a massless spring hangs from the ceiling with a small object attached to its lower end the object is initially held at
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to what volume should you dilute 540 ml of a 460 m ki solution so that 235 ml of the diluted solution contains 385 g
a flat observation screen is placed at a distance of 45 m from a pair of slits the separation on the screen between the
how much dry solute would you take to prepare each of the following solutions from the dry solute and the solvent-for
the wavelength of the laser beam used in a compact disc player is 649 nm suppose that a diffraction grating produces
for a particular scientific experiment it is important to be completely isolated from any magnetic field including the
how does the chemical structure of the dye relate to the rf factor 2 is tlc an effective way to separate and identify
an ac generator with a variable frequency is connected across a 45 cm piece of the coaxial cable outer radius of 45mm
a sample of steam with a mass of 0552 g and at a temperature of 100 c condenses into an insulated container holding 435
an early method of measuring the speed of light makes use of a rotating slotted wheel a beam of light passes through
what are the strategic importance of neodymium uses such as magnets coloring of glass and infrared radiation
if the maximum amount of product possible is formed in the following reactions what mass of the specified product would
how do you determine the intermolecular forces in molecules based off of the polarity of a given
water flows through a fire hose of diameter 709 cm at a rate of 12 x10-2 m3s the fire hose ends in a nozzle of inner
a 112 kg block of metal measuring 4 cm x 2 cm x 3 cm is suspended by a spring scale and submerged in water what is the
part 11 if the rate of increase of the world population is 2 what is the doubling time of the population2 what variable
given the following boiling point data which one of the liquids would you expect to have the highest vapor pressure at
need to have a chart of the atoms and elements so i can tell which is which on the assignment also need to draw a
the allowed energies of a simple atom are 00 ev 40 ev and 60 ev what wavelengths appear in the atoms absorption
what reaction occurs with water calculate the ph of a 010 m solution of nahso4 if solid na2co3 is added to the solution