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Consider a self-adjoint ('hermitian') operator Aˆ. The wavefunction of the system is ψ. Use the rules forcalculating with scalar products (Chapter 2 in the printed lecture notes, or your notes from my Lecture# 2) to show that the expectation value hAi = hψ|Aψˆ i is real. Do not assume that ψ is an eigenfunction of Aˆ.
During the synthesis of diphenylacetylene, why is it more difficult to remove KBr for the second time
what is the ph at the equivalence point when when 25.0 ml of 0.189moll hn3aq is titrated with 0.123 moll naohaq?assume
A titration of 200.0 mL of 1.00 M H2A was done with 1.10 M NaOH. For the diprotic acid H2A, Ka1 = 2.5 × 10-5, Ka2 = 3.1 × 10-9. Calculate the pH after 600.0 mL of 1.10 M NaOH have been added.
It is found that 4.68e-06 g of Nd2(CO3)3 dissolves per 100 mL of aqueous solution at 25 oC. Calculate the solubility-product constant for Nd2(CO3)3.
If a piece of Calcite (Calcium Carbonate) is put into the lake, would it tend to dissolve? Calcium carbonate solubility is 10^-8.35 M2, and the measured concentration of calcium ion is 0.1mM (millimolar)
Consider the reaction HgS + O2 → SO2 + Hg. If 200.0 grams of HgS reacted with 150.0 grams of O2, what is the limiting reagent.
What mass of ammonium chloride should be added to 2.65 L of a 0.165 M NH3 in order to obtain a buffer with a pH of 9.60
The crystal structure of lithium sulfide Li2S is pictured here. The edge length of the unit cell is 5.88*10^2pm. What is the density of Li2S in grams per cubic centimeter?
ammonia reacts with oxygen according tot he following equation4nh35o24no6h2o deltahrxn -906kjcalculate the heat in kj
complete the following reaction 207pbgamman and calculate the q value in mev. what is the maximum threshold wavelength
Draw Fisher projections for the following: (a) (R)-2-chloropentane; (b) (2R,3S)-2,3-dichlorobutane; (c) (S)-2-Bromo-2-pentanol;
What is the pH (to nearest 0.01 pH unit) of a solution prepared by mixing 87.0 mL of 0.0601 M NaOH and 71.0 mL of 0.0138 M Ba(OH)2
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