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a chemist wants to resolve a particular amine but she has only meso-tartaric acid on handshe scans the lab inventory
suppose that an enzyme uses a catalytic mechanism in which a functional group on the enzyme has to accept a proton from
selective oxidation of hydrocarbons is a known method to produce alcohols however the alcohols react with the oxygen to
how much heat is required to raise the temperature of a 574 g sample of ironspecific heat is 0450 jg c from 250 to 798
a mass of 475 g of h2os at 272 k is dropped into 225g of h2ol at 298 k in an insulated container at 1 bar of pressure
calculate the concentration of the hidroxide ion in a solution where h3o is 032m asume the solution is at 25c and the
a volume of 400 ml of iron ii sulfate is oxidized to iron iii by 200 ml of 0100 m potassium dichromate solution what is
an impure sample of potassium hydrogen phthalate khp had a mass of 0884 g it was dissolved in water and titrated with
a vitamin c tablet was dissolved in 500 ml of distilled water and then titrated with 00100 m kio3 1657 ml of kio3
the calmagite indicator used can have two different colors red or blue from a chemical view what is different about the
if you are titrating 2500 ml of a 100 mgml caco3 solution how many ml of 0010 m edta solution will be required to reach
a student weighs out exactly 0250 g caco3 formula weight 10009 gmole and then dissolves this in exactly 250 ml of water
what is the molar mass of a gas that occupies a volume of 1500 l at a pressure of 356 mm hg a temperature of 225 c and
an electrical heater is used to supply 1450 j of energy to a 150 g sample of water originally at 3000 k determine the
a fossil was analyzed and determined to have a carbon-14 level that is 460 that of living organisms how old is the
some type of wood can be characterized as c1h15o17 with a lower heating value of 19500 kjkg find its adiabatic flame
the watt is the derived si unit of power the measure of energy per unit time 1w 1 j-s a semiconductor laser in a cd
a 20ml volume of previously boiled deionized water is added to the conical flask to prepare the sample for titration
odors in wastewater are caused chiefly by the products of the anaerobic reduction of organic nitrogen and
zinc metal reacts with hydrochloric acid to produce zinc ii chloride and hydrogen gas how many liters of hydrogen gas
a what is the ph of a kachac buffer if the salt concentration is 60 higher than that of the acidb equal volumes of two
using heisenbergs uncertainty principle calculate the uncertainty in the position of the followingb a proton moving at
draw out the lewis structures for h2co3 hco3- and co32- then determine the maximum number of equivalent resonance
complete combustion of 20 metric ton of coal to gaseous carbon releases 66 x 1010 j of heat convert this energy to the
helium is the lightest noble gas component of air and xenon is the heaviest use r8314jmol x k and m in kgmla find the