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write an equation for the overall reaction in this experiment synthesis of salicylic acid from winter green oil and
awhich two hydrogen atoms of salicylic acid are most likely to be acidic which hydrogen atoms of methyl salicylate
in peptides and proteins peptides simply being smaller proteins the amine nitrogens of amino acids are linked to the
suppose that the microwave radiation has a wavelength of 124 cm how many photons are required to heat 275 ml of coffee
the rate constant for a particular second-order reaction is 047 m-1 s-1 if the initial concentration of reactant is 025
the activity of a radioactive sample is the number of nuclear disintegrations per second which is equal to the first
a bioengineer preparing cells for a cloning experiment bathes a small piece of rat epithelial tissue in a tris buffer
a volume of 400 ml of aqueous potassium hydroxide was titrated against a standard solution of sulfuric acid what was
derive an expression for the time dependence of the degree of polymerization for a stepwise polymerization in which the
calculate the ph of 100 l of the buffer 100 m ch3coona100 m ch3cooh before and after the addition of a 0080 mol naoh b
in each case indicate whether the addition of an electron to the ion would increase or decrease the bond order of the
one of the important reactions in living cells from which the organism draws energy is the reaction of adenosine
a 02678g sample of an unknown acid requires 2721ml of 01164 m naoh for neutralization to a phenolphthalein endpoint
if you had a ph of 70 in the body how much ammonia from the kidney would you need to add to get to a ph of 738 assume
what are the major species present in the aqueous solutions of each of the
write the balanced redox reaction for the formation of copper i oxide from molecular oxygen and solid coppera balanced
a wood sample is obtained from a tree that originally grew in 1804 ad if the initial rate of decay in 1804 ad can be
3-nitrophthalhydrazide and luminol that are consistent with reduction of the nitro function to an amino group in
in an experiment that was measuring absorbance at 590nm i placed a barley water extract and starch in a spectrometer
if you are given a 025 g piece of sodium metal to react with water how many moles of hcl would it take to neutralize
1 using equation 1 1wavelength r1n12 - 1n22 calculate n2 for these three lines4026nm n2 4471nm n2 5875 nm n22 draw a
how much heat is required to change 250 g of liquid ethanol that is at a temperature of 1587 k to a gas at 3515
the total calories for 2 tablespoons of crunchy peanut butter that contains 6 of carbohydrate 16 of fat and 7 of
a gas vessel is attached to an open-ended manometer filled with a nonvolatile liquid of a density 0993 gml the
a molecular orbital in a diatomic molecule that has a nodal plane containing the internuclear axis and no nodal plane