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the mass percent of iron in an iron ore can be determined by converting fe to fe2 in acid solution and then titrating
a 500 ml solution of 12 m hcl at 241 c is mixed with 500 ml of 13 m naoh also at 241 c in a coffee-cup calorimeter
a constant current of 1190 a is passed through an electrolytic cell having an impure copper anode a pure copper cathode
ammonia is produced industrially from the reaction of nitrogen and hydrogen write the balanced chemical equation for
1 what causes acid rain why is acid rain more damaging in some lakes than others2 what is the ph of 100 l of rainwater
i solution i is 0088 m in compound z and has an absorbance of 0203 in a 1 cm cell at 520 nm the solvent alone has an
which of the following compounds is quite insoluble in water but would liberate a gas when treated with aqueous acetic
what mass of silver iodide can be made by the reaction of 100 g of silver nitrate agno3 with 100 g of sodium iodide nai
a 0411g sample of powdered copper mixed with an inert soluble additive was fully consumed by 234ml of 0602m nitric acid
a white solid is known to consist of one or more of the following compounds agno3 na2co3 cacl2 and pbno32 a sample of
what is the sum of all coefficients in the complete and balanced net equation for the reaction occurring when chlorine
how many microliters of 1000 m naoh solution must be added to 2500 ml of a 01000 m solution of lactic acid to produce a
synthesize 2-butanol from an aldehyde and a grignard reagentshow two possible routes to the
what is the percent yield of elemental sulfur if 754 grams of sulfur are obtained from the reaction of 616 grams of so2
a gaseous system undergoes a change in temperature and volume what is the entropy change for a particle in this system
the instruction booklet for your pressure cooker indicates that its highest setting is 134 you know that standard
what is the concentration of hydronium ion from ph and the concentration of hydroxide ion from
determine the concentration of the indicated liquid unknowns given the mass of a solid standard and the buret data for
you add an excess of caoh2 to water maintained at a particular temperature stir until the solution is saturated filter
propose the argument that for any liquid at atmospheric pressure that is a liquid that boils above room temperature
when an electron in hydrogen moves from n8 to n2 light with a wavelength of how many
when a space shuttle re-enters the atmosphere its temperature rises and it can heat the surrounding air to 1260 degrees
what is the frequency of radiation that has a wavelength of 12 um about the size of a bacteriumwhat is the wavelength
1 draw the fisher projection formulas for the following and then convert them to three dimensionala l-threoseb
a what is the mass in grams of 412 moles of caco3 how many moles are in 750g of