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13 Dec 2019

Could you plz help me in the calculation for the UV.vis experiment for compound which its M.W is 605.7002 g/mol with Me2Cl2 as solvent ( 10 ml volumetric flask ) will be used.
Plz use 10-4 as concatenation
Details of calculations plz to understand that
Thanks

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Reid Wolff
Reid WolffLv2
17 Dec 2019

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Related questions

ubdate : here is the precduer becase the photo not clear..

A mixture of Nitrophenyl Carbazole (5 mmole) SnCl2 (30.4 mmole) in EtOH 15 ml was heated at 70 for 4 hr, After the reaction mixture was cold to RT 1 M of NAOH was added until the mixture become alkaline..extracted with ethyl acatate and dryied over MgSo4 and evaporated.

Could plz recalculate step 2 only if I will start with 0.65 g of Nitrotriphenyl Carbazole. Plz show me (amounts-equivalent-mmole or mole whatever for all chemicals used) Thanks & I always rat ..


Plz plz help this 4 questions!!!

You dissolve a compound with a molecular mass of 271.98 g/mol in a 10-mL volumetric flask. You remove a 1.00-mL aliquot, place it in a 25-mL volumetric flask and dilute it to the mark. The absorbance of this diluted solution at 329 nm was 0.485 in a 1.000-cm cuvet. The molar absorptivity for this compound at 329 nm is ε329 = 6133 M–1 cm–1.

(a) What is the concentration of the compound in the cuvet?

(b) What is the concentration of the compound in the 10-mL flask?

(c) How many milligrams of compound were used to make the 10-mL solution?

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