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how many grams of potassium permanganate are required to prepare 2 qt of 1750 solution of potassium
using enthalpies of formation calculate the quantity of heat produced when 325 g of butane is completely combusted in
three pure compounds are formed when 100 g samples of element x combine with respectively 0472 g 0315g and 0944 g of
a 611g sample of a cu-zn alloy reacts with hcl acid to produce hydrogen gas if the hydrogen gas has a volume of 126l at
emma is analyzing a sample which contains some zinc in it the sample is 198 g she reacts it with an excess of
determine the wavelength in nm of the photon required to ionize one atom of lithium ie1 520 kjmol with what region of
a solution is made by mixing 250 ml of 20 m sodium sulfate with 500 ml of 050 m sodium sulfate assuming that
the decomposition xy is second order in xy and has a rate of 702 e-3 m-1 s-1 at a certain temperaturea what is the
when 204 grams of the strong electrolyte sodium phosphate are dissolved in 143 grams of watera what is the molality of
imagine that you have a 650 l gas tank and a 400 l gas tank you need to fill one tank with oxygen and the other with
monel metal is a corrosion-resistant copper-nickel alloy used in the electronics industry a particular alloy with a
the following data were obtained from experiments to find the molecular formula of procaine a local anesthetic which
the 2 ml of 02 m solution of naoh was added in 10 ml of 004 m solution of h3po4 calculate the concentration of hpo42-
uranium hexaflouride is a solid at room temperature but boils at 56 c determine the density of uranium hexaflouride at
a heliox deep-sea diving mixture contains 20 rm g of oxygen to every 980 rm g of helium what is the partial pressure of
a balloon was filled to a volume of 250 rm l when the temperature was rm 300circc what would the volume become if the
one function of iron-sulfur clusters and heme cofactors is to participate in electron transfer reactions describe how
a 64-kg man standing on a scale in an elevator notes that as the elevator rises the scale reads 823 n what is the
use the following information to identify the diatomic molecule a and the compound b then answer the following
why is it easier to remove electron from the first two energy levels of mg but easier to remove third level electron of
1 draw all the monochlorinated derivatives of 2233-tetramethylbutane that are skeletal isomers of one another to make a
determine the wavelength in nm of the photon required to ionize one atom of cesium ie1 376 kjmol with what region of
presume that you are starting a research project to study a mammalian metalloenzyme that is 350 amino acids long
what is the balanced net ionic equation for the reaction of sodium oxalate with potassium permanganatena2 c2 o4 kmn 04