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Shiro
Questions and answers by
Shiro
Questions (9)
The regression line from a plot of absorbance vs. concentration yields: π΄ = 2.31[πΆ] + 0.002. If the absorbance of an
5 answers
asked by
Shiro
1,645 views
The equation for a normal calibration curve for the detection of iron(II) is determined experimentally to be π΄ = 12.93
1 answer
256 views
The equation for a normal calibration curve for the detection of iron(II) is determined experimentally to be π΄ = 12.93
4 answers
1,139 views
If a sample of hexane with benzene had an absorbance of 0.153 at 256 nm in a cuvette with 1.000-cm path length, find the
6 answers
1,673 views
A chromate πΆππ4 β2 solution has an absorbance of 1.534 when the cell length is 1.5 cm. If the molar absorptivity of
3 answers
842 views
A solution prepared by dissolving 25.8 mg of benzene (78.11 g/mol) in hexane (86.16 g/mol) and diluting to 250 mL had an
5 answers
5,305 views
One student calibrated a 50-mL burette by using the mass of water delivered. The student used an analytical balance which was
1 answer
421 views
Can anyone help me?
Ksp of CuCO3 = 3.5x10^ -4 Ksp of Ca(OH)2 = 8.9x10^ -5 Ksp of Ag2CrO4 = 10.0x10^-11. Given by these, Which has
3 answers
478 views
The glucose concentration of adults from Municipal X is normally distributed with mean of 75 mg/dL and standard deviation of 18
4 answers
916 views
Answers (9)
how about the second one?
Thankyouu i get the answer,
Thankyouuu.
i didn't get the answer, i don't know how to get absorptivity constant in the following given. I just research it, the formula is π΄ = β log π something like that?
thank you dr bob, i get the answer.
Would that answer be correct?
Language Lance!
Thanks for hand holding me too
After you get the ratio. From the 0.01 moles-moles of Na2HPO4= moles of NaH2PO4 => (0.01 - Na2HPO4)/(Na2HPO4) = (ratio of pka2 from hasselbalch) unit will be mol, convert to g
