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explain how many grams of dry nh4cl require to be added to 210l of a 0700m solution of ammonia nh3 to make a buffer
the coulomb force between two small identical metallic balls carrying charges q1 and q2 respectively is found to be an
a cylinder has a volume of 23 cm3 and a charge density of 24 ccm3 and is enclosed in a spherical surface with a radius
the voltage supplied by a wall socket varies with time reversing its polarity with a constant frequency as shown in the
a solution is made by dissolving 0687 mol of nonelectrolyte solute in 797 g of benzene compute the freezing point and
if the magnitude of an electric field in air is as great as 300times106 nc the air becomes ionized and begins to
part aa non conducting thin spherical shell of radius 636 cm has a uniform surface charge density of 823 ncm2 what is
atmospheric co2 level seem to have risen by around 20 over the past 40 years from 315ppm to 375ppm a specified that the
a jogger accelerates from rest to 399 ms in 391 s a car accelerates from 176 to 342 ms also in 391 s a discover the
perform a steady-state examination on the 3-step reaction mechanism below presume that both ozone and atomic oxygen are
a 100-m vertical tube with its bottom closed and top open to the air is partly filled by mercury what is the absolute
a copper wire 891 cm long and 105 mm in diameter have a mass of 607 g1 discover the number of electrons in the wire
the density of an element is 2540 gcm3 the element crystallizes in a face centered cubic lattice as well as has a
an express train passes during a station which is 210 m long it enters with an initial velocity of 205 ms and
tantalum 1809479 gmol has a body centered cubic crystal structure with an edge length of 33058 pm as well as a density
depict the structural formula for compounds 1 to 5 a certain alcohol c4h10o 1 gives a reaction with chromic acid 2 the
a vertical speaker which can be viewed as a 300-cm gap is playing a 120-khz tone from the center of the stage 100 m
a 350nc point charge is placed at the centre of a hollow metal sphere that has an inner radius 490cm and an outer
you have 875ml of a 043 m acetic acid solution explain what volume v of 110 m naoh solution must you add in order to
the positron is a particle with the same masses as an electron however charges e a positron in a bubble chamber moves
a student in a quantitative analysis laboratory is to find out the concentration of a sodium hydroxide solution the
a solve for the number of grams of ca2 ion in a solution prepared by adding 1 gram of calcium oxalate powder to 100ml
a non conducting thin spherical shell of radius 636 cm has a uniform surface charge density of 823 ncm2 what is the
explain why you might expect that the dehydration of 1-butanol as well as 2-butanol would produce a similar composition