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a what must be the velocity of electrons if their associated wavelength is to equal the longest wavelength line in the
calculate the mass include units of the unknown sample to produce 250 ml of a solution at about ca2 0005 m assume that
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question 1 the gas-phase dipole moment of the hydroxyl radical bulloh is 166 d and the bond length for this species is
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a 375 ml sample of gas is initially at a pressure of 721 torr and a temperature of 32degc if this gas is compressed
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hydrchloric acid is usually purchased in a concentrated form that is 370 hcl by mass and has a density of 120gml how
consider the mechanistic step in the conversion of 1-butanol to 1-bromobutane in which bromide ion displaces water
an aqueous solution containing 0050 m mg2 and 0050 m cu2 ions and are asked to try to separate them what
if you mix 10 ml of a 01 m hcl solution with 8 ml of a 02 m naoh solution what will be the resulting ph if a weak acid
consider the unbalanced redox reaction cr2 o72- aq cusrarrcr3 aq cu2 balance the equation in acidic solution and
a flask of water is connected to a powerful vacuum pump when the pump is turn on the water begin to boil after a few
you have been asked to analyze some mineral water for magnesium by standard addition using atomic absorption aas you
3concentrated acetic acid is a class ii combustible liquid what is the molecular weight of acetic acid that will form
define amphoteric behavior and give an example of it other than the one given in your lab manual why is it good to
using a periodic table arrange the following substances according to their expected lattice energies listing them
1 consider a process involving 1 mole of an ideal gas that takes place by the following pathway at a constant
consider the following cell pth2g 1880 atmh aq mag aq 100 mags if the measured cell potential is 10500 v at 25 degc
if you pass 100ml of a 500ml solution of coen2cl2cl that has been reduced with zn through a cation exchange column
the unit celll of copper cu is a face-centered cube that has an edge lenth of 362 a note 1a110-10 m determine the
how many minutes is required for sunlight to travel from the sun to earth assume the sun is 93000000 miles from earth