Chemistry (College) quiz
107 questions across 1 difficulty level. Every attempt draws a fresh random set, so you can play as often as you like.
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Hard
107 questions
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Sample questions
- What is the maximum value of the z-component of the spin angular momentum of 43Ca? [I = 7⁄2]
- Calculate spin density on the central carbon atom of malonic acid radical (•CH(COOH)2) if the hyperfine value for the α-hydrogen atom is 21.9 G.
- The 99Ru chemical shift of [Ru(H2O)6]2+ is 16,050 ppm relative to [Ru(CN)6]2- at 0 ppm. The electronic excitation energies of [Ru(H2O)6]2+, [Ru(CN)6]2- and [Ru(NH3)6]2+ are 18,900, 40,000 and 25,600 cm-1 respectively. Assuming that the chemical shift differences are dominated by paramagnetic currents, determine the chemical shift of [Ru(NH3)6]2+.
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