A compound containing Ti and V give 0.172 A at 400nm and 0.116 A at 460nm...
A compound containing Ti and V give 0.172 A at 400nm and 0.116 A at 460nm (1 cm cell was used). What are [Ti] and [V]?
At 400nm: Molar absorptivity of Ti= 644 (L/molxcm) Molar absorptivity of V= 145(L/mol x cm)
At 460nm: Molar absorptivity of Ti= 321 (L/molxcm) Molar absorptivity of V= 232 (L/molxcm)
Use A1= E1bcTi + E1bcV
A2= E2bcTi + E2bcV
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A compound containing Ti and V give 0.172 A at 400nm and 0.116 A
at 460nm...
I need help with 5 & 7 please (a) 15.8% (d) 23.8% (b) 0.492 (e) 0.085...
I need help with 5 & 7 please
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Please I need Answers for ALL THESE QUESTIONS with
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Please show work!
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Please I need Answers for ALL THESE QUESTIONS with
explanation
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Please show work!
A solution containing a mixture of the compounds X and Y had an absorbance of 1.06 at 443 nm and an absorbance of 0.909 at 520 nm when measured with a 1.00 cm cell. The molar absorptivities (C) of X and Y at each wavelength are shown in the table. Wavelength (2. nm) Molar Absorptivity (M 'cm ) 3507 443 520 14860 3616 5818 What are the concentrations of X and Y in this mixture? Transmittance (%)...
An unknown amount of a compound with a molecular mass of 294.46 g/mol is dissolved in a 10 mL volumetric flask. A 1.00 mL aliquot of this solution is transferred to a 25 mL volumetric flask, and enough water is added to dilute to the mark. The absorbance of this diluted solution at 343 nm is 0.456 in a 1.000 cm cuvette. The molar absorptivity for this compound at 343 nm is €343 = 5721 M-?cm-1. What is the concentration...
A 3.80-g sample of an unknown compound containing only C, H, and O combusts in an oxygen rich environment. When the products have cooled to 20.0 degree C at 1 bar, there are 4.96 L of CO_2 and 2.45 mL of H_2O. The density of water at 20.0 degree C is 0.998 g/mL. What is the empirical formula of the unknown compound? If the molar mass is 168.2 g/mol, what is the molecular formula of the compound?
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