Chemistry Answers

Calculate the pressure in a 212 Liter tank containing 23.3 kg of argon gas at 25°C? ( atomic weight Ar - 40 )

 Suppose the distance between two successive reflections in the optical fiber is 400μm. What is the diameter of the core of this fiber if the light is incident at 82^o at the core?

For each of these pairs of half-reactions, write a balanced equation for the overall cell reaction and calculate the standard cell potential, E^0cell.

A. Half-reactions: Cd^2+(aq) + 2e^- —> Cd(s) Cr^2+(aq) + 2e^- —> Cr(s)

Cell reaction:

E^0cell

B. Half-reactions: Fe^2+(aq) + 2e^- —> Fe(s) Br2(g) + 2e^- —> 2Br^-(aq)

Cell reaction:

E^0cell

Molar conductivity of 0.005M Kcl is 144Scm^2mol. Calculate its electrolytic conductivity in SI units (Sm^-1).

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Write the scheme for obtaining thymidine-3’monophosphate from nucleoside .give the name of the reagent .name all types of bonds

Why phenol is much stronger acid than 2,6 di tert butyl phenol ? Explain

A sample of the transition metal scandium contains 7.42 x 10²¹ atoms. How many moles does the sample contain?

Check the normalization of P, and P, for the harmonic oscillator and show they are orthogonal. Two-ax²/2(C) and U-e-ax²/2(r v)]

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