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in a 010 m solution of a weak diprotic acid h2a the species present in highest concentration besides water would
given a 0010 m solution of a diprotic acid h2a with ka1 29 x 10-5 and ka2 53 x 10-6 the species present in the lowest
a 0010 m aqueous solution of a weak acid ha has a ph of 400 what is the percent dissociation of ha in the
calculate the ph of a solution formed by mixing 500 ml of 0015 m hbr with 200 ml of 0200 m
a if a propanoic acidpropanoate buffer is 020m in propanoic acid and has a ph of 463 what is the molar concentration of
a 2000 ml sample of 0200 m hbr solution is titrated with 0200 m naoh solution calculate the ph of the solution after
calculate the ph of a buffer formed by mixing 85 ml of 013 m lactic acid hl with 95 ml of 015 m nal sodium
the ph of a solution oh hn3 was found to be 47 find the original concentration of the hydroazoic acid
in each part two solutions are mixed together if a reaction occurs write the balanced chemical equation and the net
a 05212 g sample of an unknown monoprotic acid was titrated with 996 x 10-2 m naoh the equivalence point of the
if 550 ml of ethanol initially at 80c is mixed with 550 ml of water density 10gml initially at 286c in an insulated
an ice cube of mass 90g is added to a cup of coffee whose temperature is 95c and which contains 130g of liquid assume
if 450 ml of ethanol density0789 gml initially at 90 c is mixed with 450 ml of water density10 gml initially at 286 c
in a solution of pure water autoionization occurs producing conjugate acid-base pairs in solution2h2o h3o oh-why then
a student placed 160 g of glucose c6h212o6 in a volumetric flask added enough water to dissolve the glucose by swirling
a given 775 g of butanoic acid and excess ethanol how many grams of ethyl butyrate would be synthesized assuming a
ag3po4s3nach3cooaq what volume of a 00240 m solution of na3po4 is required to react completely w821 ml of a 00887 m
500-gram sample of impure zinc reacts with exactly 129 ml of hydrochloric acid which has a density of 118 gml and
given the equation 4 fes 3 o2g 2 fe2o3s what is the theoretical yield of fe2o3 from the reaction of 486 g fe with
the heat capacity of copper is 0382 jg c a 226 g sample of copper at 93 c is placed in 50 g of water at 239 c what is
a 0831-g sample of so3 is placed in a 100-l container and heated to 1100 k the so3 decomposes to so2 and o2 2so3g
selenic acid is a strong diprotic acid and dissociates according to the following equationsh2seo4aq lt----gt haq
it is found that 64 x 10-4 g of ag3aso4 dissolves per 500 ml of aqueous solution at a given temperature calculate the
a solution is made from 25 ml of 200x10-2 m agno3 and 10 ml of 600x10-2 m na3aso4 the ksp of ag3aso4 is 10x10-22ag3aso4
what is the ph of a solution that is 020 m hc2h3o2 and 040 m nac2h3o2 ka for acetic acid 18 x 10-5