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in an electrolysis experiment 150 g of water are decomposed by means of an electrical current to form gaseous hydrogen
calculate the number of moles of gaseous nitrogen contained in a sample of 227 ml of gas saturated with water vapour at
a 10 microcoulomb charge is placed at the origin and a 20 microcoulomb charge is placed on the x-axis at x 40 cm if an
whats the volume of pure hydrogen present in a sample of 550 ml of gas saturated with water vapour at 27 degc if the
a flask has a mass of 7816g when empty and 59356g when filled with water when the same flask is filled with
two equal charges of magnitude 1 c are separated by a distance of 1 km what is the force acting between these two
a gaseous hydrocarbon sample is completely burned in air producing 180 liters of carbon dioxide at standard temperature
a wire of radius 15 mm carries a current of 28 a the potential difference between points on the wire 20 m apart is 47v
use your knowledge of chemical principles and kinetic-molecular theory to explain the following statementsa a lit
an inductor is connected to a 12khz oscillator that produces an rms voltage of 60v the peak current is 60mawhat is the
equal molar quantities of two gases o2 and h2o are confined in a closed vessel at constant temperaturea which gas if
you are standing at x90km lightning bolt 1 at x0km and lightning bolt 2 at x120km both flashes reach your eye at the
are enzymes in laundry detergents effective stain removers i need to write a paper on the above topic 1the paper
a rocket cruising past earth at 0800c shoots a bullet out the back door opposite the rockets motion at 0900c relative
a 100 gram sample containing calcium carbonate and an inert material was placed in excess hydrochloric acid a reaction
explain how the existence of isotopes is related to atomic masses not being whole
a wire is 3500 m long after applying a force to one end of the wire it is now 3504 m long calculate the tensile strain
an electric device which heats water by immersing a resistance wire in the water generaters 50 cal of heat per second
720 ml of a 150 m solution is diluted to a volume of 288 ml a 144 ml portion of that solution is diluted using 185 ml
consider the infinite midplane between two charges of equal magnitudes and oppoisite signs if the charges are and - q
a first order reaction a-gt product has a half-life of 198 min what is the rate of the reaction when a 0632
the boiling point of another member of this homologous series was found to be 309 what is the likely molecular formula
the solubilityof n2 gas in water at 204 atm is 48 mg of n2 gas100 g water calculate the solubility of n2 gas in water
an automobile tire is inflated with air originally at 100degc and normal atmospheric pressure during the process the
acetone c3h6o and ethyl acetate c4h8o2 are organic liquids often used as solvents at 30 degrees c the vapor pressure of