Chemistry, 26.11.2019 03:31 aghamuzahirali5289
Aphosphate buffer solution (25.00 ml sample) used for a growth medium was titrated with 0.1000 m hydrochloric acid. the components of the buffer were sodium monohydrogenphosphate and sodium dihydrogenphosphate. the first endpoint occurred at a volume of 10.32 ml, and the second occurred after an additional 18.62 ml was added, for a total volume of 28.94 ml. what was the total concentration of phosphate (in any form) in the buffer?
Answers: 1
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Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?
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Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent
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Aphosphate buffer solution (25.00 ml sample) used for a growth medium was titrated with 0.1000 m hyd...
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