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what is the ph of the buffer that results when 125 g of nah2po4 and 220 g na2hpo4 are mixed and diluted with water to
the solubility product constant for ceio33 is 32x10-10 what is the ce3 concentration in a solution prepared by mixing
hydrazoic acid has a chemical formula of hn3 it is a volatile and toxic acid with a ka value of 25 x 10-5although it
suppose at some temperature kc 620 x 108 for the reaction 2nog 2h2g lt--gt n2 g 2h2og 500 m nog and 500 m h2 g are
a 2083 g sample of a mixture containing sodium carbonate and sodium bromide was placed in a 2500ml volumetric flask and
please use the information given regarding molybdic acid molybdic acid is diprotic acid with the formula h2moo4 the
a buffer is prepared by mixing 204ml of 452m hcl and 500l of 400m sodium acetat a what is the ph b how many grams of
if one solution has an h3o concentration that is 10 times that of another solution what is the difference of their ph
what is the ph after 1250 ml of 010 m naoh has been added to 2500 ml of 010 m acetic
if a 10000 g sucrose solution has a boiling point of 1015 celsius degrees how many moles of sucrose are in the solution
if you thought you had discovered a new element how could you get the scientific world to accept your discovery what
one way to remove lead ion from water is to add a source of iodide ion so that lead iodide will precipitate out of
for the best system calculate the ratio of the masses of the buffer components required to make the buffer ph910
given this data for oxygen o2 sketch its phase diagram label solid liquid gas normal boiling point normal melting point
a although it might not be the best choice a student prepares a buffer using hn3 and nan3 solutions find the
dental amalgam a solid solution of silver and tin in mercury is used for filling tooth cavities two of the reduction
calculate kc for the equilibrium nog 12 o2g lt--gt no2g if kp 13 x 106 at 298
assume you dissolve 0235 g of the weak acid benzoic acid c6h5co2h in enough water to make 900 multiplied by 102 ml of
1 a 1276 g sample of a monprotic acid molar mass 110 x 102 was dissolved in 25 ml of water and titrated with 0633 m
a 500ml volume of 015m hbr is titrated with 025m koh calculate the ph after the addition of 190 ml of
carbon monoxide gas reacts with water vapor to produce carbon dioxide gas and hydrogen gas in an experiment 0500 mole
what is the major product when 33-dimethyl-2-butanol reacts with hbr in the presence of
the ksp of agbr is 54 acute 10-13 at 25 degc calculate the molar solubility of agbr in 0015 m nabraq at 25
calculate the solubility in grams per 100x102 ml of solution of magnesium hydroxide in a solution buffered at ph12 and