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1-propanolp1209 at 25 degree c and 2-propanolp2452 torr at 25 degree c form ideal solutions in all proportionslet x1
calculate the ph of a solution made by adding 110 g of sodium formate nahcoo to 400 ml of 065 m formic acid hcooh hint
cyclopropane c3h6 reacts to form propene c3h6 in the gas phase the reaction is first order in cylclopropane and has a
maria throws jackson a life preserver attached to a rope jacksons mass is 235 kga if maria pulls jackson upward with an
it takes 42 min for the concentration of a reactant in the first order reaction to drop from 45 m to 32 m at 25 degrees
how many time constants must elapse before a capacitor in a series rc circuit is charged to 660 of its equilibrium
three capacitors of 20 90 and 150 f are joined together in parallel what is their equivalent
a reaction mixture consists of 050 atm nitrogen 075 atm hydrogen and 20 atm ammonia go for the reaction is -3332 kjmol
the following information may be useful in solving this problem e 16 x 10-29 c the mass of a chloride ion is
intravenous or iv solutions used in medicine must exert the same osmotic pressure as blood to prevent a net flow of
in peas a recessive trait causes the curling of leaves a crossinvolving a plant with yellow pods and curling leaves
when 242g of a nonelectrolyte solute is dissolved in 855 ml of water at 21 degree c the resulting solution exerts an
a if an inductor carrying a 200 a current stores an energy of 0250 mj what is its inductancemhb how much energy does
1 mole of nitrogen is confined within a cylinder at 100 atm temperature is increased from 0 degrees to 823 degrees
a sample containing beryllium atomic mass 9 u aluminum 27 u and an unknown element is placed in a mass spectrometer the
the space shuttle typically travels in a circular orbit at an altitude of 500 km above the earths surface the earth
lysozyme is frequently found in such extracellular bodily fluids assaliva and tears it serves as a function in a first
a a solid sphere of a metal with a mass of 07371kg has a diameter of 500mm calculate the density of metalb calculate
explain the difference in the 3d structure and amino acid distribution between soluble cytosolic proteins and
two equal point charges of magnitude 40 c are situated along the x-axis at x1 -20 m and x2 -20 m what is the electric
what is the molar mass when a 125855g sample of an unknown compound is dissolved in 320000g of water the resulting
how many moles of urea must be dissolved in 716 grams of water to give a 24 m
a mass-spring system oscillates with an amplitude of 500 cm if the spring constant is 266 nm and the mass is 457
how many electrons should we expect to see associated with the lowest energy peak in the photoelectron spectrum of the