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a weather balloon is inflated to a volume of 265 l at a pressure of 748 mmhg and a temperature of 323 c the balloon
1 analysis of a salt results in the following composition 347 g sodium 212 g nitrogen and 727 of oxygennbsp what is the
a concentration cell is constructed at 25 ordmcnbspbased on the znzn2nbspelectrode the concentration of zn2nbspis
ammonia perchlorate nh4cio4 is solid rocket fuel it reacts with itself to produce nitrogen gas n2 chlorine gas cl2
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determine whether aqueous solutions of the following salts are acidic basic or neutral aloh3 is a weak base hno3 is a
the ideal gas behavior is based on an ideal way of thinking were the molecules do not collide with other molecules what
suppose that a reaction has delta h 41 kj and delta s -27 jk at what temperature if any will it change between
from the volume of titrant added calculate the moles of vitamin c for each titration show asample calculation for trial
the gibbs free energy g is the thermodynamic potential that is minimized when a thermodynamic system reaches
what are the energy policies implemented by the us from 1970 knowing the current conditions of energy crisis global
can you please help me this these question in a well developed paragraph what is a mass spectrometer and how does it
after using the hoffman apparatus to collect samples of hydrogen gas and oxygen gas the test for each was performed
in which one of the following reactions is deltah rxn equal to deltah f of the product please show how you identified
a what is this peptides nameb what approx range of ph would provide the charges shown in the peptide abovec circle
compare the dipole moments of the following pairs of molecules and determine whether the first is greater than less
a buffered solution contains 0250 m ha ka is 10 x 10-6 and 045 m naa what is the ph after 027 mol of hcl is added to 1
a weak acid hcn is in solution with dissolved sodium cyanide nacn if naoh is added which chemical will react with the
a buffer solution is prepared by dissolving 035 mol of naf in 100 l of 053 m hf which of the following is true about
can you please help me this these questions in a well developed paragraph what are fermions and bosons what is the
experiment 1 find the calorimeter constanttake a constant temperature bath from the instruments shelf and place it on
1 what is the percent composition of zn3po42nbsp need to show work2 the name of a hydrate is calcium chloride
25 ml of an unknown baoh2 solution require 20 ml of a 150m hcl solution to neutralize it baoh2 aq 2hcl aq -gt 2h2o l
how many double bond equivalents are contained in a compound with a molecular formula of c9h10 give a
1 sketch the unoccupied mo of the h2 ion does this orbital have a nodenbsp if yes sketch and describe the surface2 how