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potassium chloride has solubility 430 g 100 g water at 50ocnbspwill a mixture of potassium chloride 1100 g and water
to determine deltahfusionnbspof water you will essentially add ice to water allow the ice to melt and note the
the fluorides bf3 alf3 sif4 and pf5nbspare lewis acidsnbspthe all form very stable fluoroanions when treated with
the black tarnish that forms on pure silver is the sulfide ag2s formed by reaction with h2s in the atmosphere4 ag 2
write the balanced equation for the decomposition of nahco3 this time with the term energy on the appropriate side of
you had to heat the nahco3nbspstrongly in order for you to see it to decomposenbspthis is an example of
1 what is the potential energy and the associated hamiltonian for the h-atom draw the potential energy vr2 show that
consider a buffer made of 1 m hydrofluoric acid and 1 m potassium fluoride with a volume of 450ml 5 mmol of sodium
calculate the concentration of ammonia ion that is required to prevent the precipitation of mgoh2 in a solution with
a sample of ch3oh contains 335 x 1022 atoms how many moles of ch3oh are present in the
calculate the silver ion concentration ag of a solution prepared by dissolving 100 g of agno3 and 100g of kcn in
the average human body contains 500 l of blood with a fe2 concentration of 300times10-5 m if a person ingests 120 ml of
a saturated solution of leadii chloride pbcl2 was prepared by dissolving solid pbcl2 in water the concentration of pb2
determine the formal charge of each element in the followingformal charge charge that would result on an atom by taking
a sample of a hydrochloric acid solution 250nbspml required 286 mlnbspof a 0175 m solution ofnbspsodium hydroxide for
a buffer is prepared by adding 120 g of ammonium chloride nh4cl to 260 ml of 100mnbspnh3 solutionpart a what is the ph
a buffer contains 016 mol of propionic acid c2h5cooh and 013 mol of sodium propionate c2h5coona in 120 lpart anbspwhat
a lead-acid battery uses a redox reaction in which lead0 and leadiv are both converted to leadii this reaction is
part anbspwhat is the ph of a buffer prepared by adding 0809 mol of the weak acid ha to 0608 mol of naa in 200 l of
consider thenbspbalancednbspequation for the following reaction2h3po4aq al2co33s rarr 3co2g 3h2ol 2alpo4sif 509
consider thenbspunbalancednbspequation for the following reactiono2g c6h5coohaq rarr co2g h2oldetermine the amount of
calculate the mass ofnbspli formed by electrolysis of moltennbsplicl nbspby a current of 80times104nbspanbspflowing for
what would be the product formed if s-4-methyl-2-heptyne were reacted with sodium metal in liquid
what would be the products formed if 6r7r-3-ethyl-67-dimethyl-4-nonyne were reacted with aqueous sulfuric acid and