Calculate the expected relative intensity of the M+1 and M+2 peaks for quercetin where only one of the hydroxyl groups are silylated. You may use nominal masses. Show all your calculations
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- A solution was prepared using 0.0010 g of an unknown steroid (of molecular weight around 255) in 100 mL of ethanol.Some of this solution was placed in a 1-cm cell, and the UV spectrum was measured. This solution was found to havelmax = 235 nm, with A = 0.74.(a) Compute the value of the molar absorptivity at 235 nm.(b) Which of the following compounds might give this spectrum?Butanal and methylpropanal give slightly different mass spectra. Both give a molecular ion peak at m/z = 72, but butanal gives four other peaks whereas methylpropanal only gives three. State the species responsible for the four other peaks in the mass spectrum of butanal and write equations to show their formation from the molecular ion.Imine compounds usually show stretching bands in the IR in the range of 1690-1649cm-1 and aromatic amines show a C-N stretch at 1340-1265cm-1. A related compound, N-benzylideneaniline, does not show tautomerism and has a C-N stretch at 1678cm-1 while H2SB-1(2-(2-hydroxybenzylideneamino)phenol ) shows a C-N stretch of 1590 cm-1. Given this information, does H2SB-1 show some C-N single bond character.
- What compound is consistent with the NMR spectrum below? d6-DMSO solution F0.60 0.55 -0.50 -0.45 -0.40 -0.35 -0.30 -0.25 -0.20 -015 -0.10 -0.05 -0.00 0.05 6.5 5.5 5.0 4.5 4.0 6.0 f1 (ppm) 7.5 7.0 HOI HO. но но (A) (B) (C) (D) Forhow to analyse the peaks and graphs for different tecniques such as HPLC, IR, NMR, Mass spectrometry in paracetamol please explainPlease help me analyze this 1H and 13C Acetylferrocene NMR data. I am not sure how to read the peaks and what information they give.
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