g) HO₂+Cr(OH)4 CrO42 + OH¹- h) Br¹ + SO42 Brz + SO2 (H+) i) FeO + H2O2 Fe³+ + H₂O (basic solution) (acidic solution)

Uridine monophosphate (UMP) undergoes a deuterium exchange in deuterated water as shownbelow. Propose a mechanism for this exchange. (

3). reactions of the following alkyl iodide. Danny uses potassium tert-butoxide to promote the reaction while Claire uses water and high temperatures. One of their reactions has provided a single elimination isomer while the other has provided a mixture of elimination isomers. Organic chemistry students Danny and Claire are both performing elimination Me H20, heat Danny's Reaction Claire's Reaction H. Me a) Which student's reaction (Danny or Claire) has provided a single elimination isomer? b) Draw all the elimination isomers obtained from both students' reactions. c) Which of the dienes drawn (by you) in question 3b is the most stable? Circle that diene above.

Identify the structures shown as glycerophospholipids or sphingolipids.

Fill up the two missing values inside the two circles knowing that the total reaction volume is 2mL. 1) Dilution fraction 2) Water Don't include units in your answer. Membrane Brillant blueR 1g/L Dilution Sample suspension fraction (μL) (μL) 1) Control ? 0 50 2) 1/200 ? 10 50 3) 1/100 0.01 20 50 4) 1/50 ? 40 50 5) 1/20 100 50 Phosphate pH11, 0.2M (ml) 1 1 1 1 1 Water (mL) 0.95 ? ? ?

The units for the unimolecular reversible rate constant for the forward reaction are ○ M sec-1 sec M-1 sec-1 sec-1

Which of the following is the cyclic form of an L saccharide? 1) II) CH2OH OH H CH2OH H H H ОН OH H ОН ОН OH H ОН II) IV) H OH ОН CH2OH CH2OH CH2OH H H. H ОН H H H OH ОН ОН OH

Consider the depeptide below: (look at images) Use first image to answer second image questions.

An incomplete structure of a porphyrin ring is shown below. The structure is missing three pi bonds and does not show the non-zero formal charges on two atoms. Complete the structure of the porphyrin ring with the missing pi bonds and formal charges. 0 0 +t DC 12⁰ H C N O S F P Cl Br I

Write the condensed formula for this