Н Н Which compound below fits the following proton NMR data? O-CH3 CH3 A singlet S 3.98 (3H) quartet S 2.14 (2H) triplet 8 1.22 (3H) - C-CH CH3-CH₂-O-C-CH3 В О CH3-O-CH2-C-СН3 с -о-сна CH3-CH₂-C-O-CH3 D

A

If a human consumes about 1.9 L of water a day, how many kilograms of Epsomite ((MgSO4)(7H2O)) would be needed to be dehydrated to support a crew of 5 for a 1 week mission on Mars? Assume the density of water 1.0 g/mL.

CH3-C-OH CH3.C-NH2 2. Classify the following compounds as primary, secondary and tertiary amines (15) CH2-CH3 CH3 CH3-CH-NH CH3-C-CH3 ČH3 NH2 3. Draw the structure of the following compounds: (20) a. 2.Amino-3-pentanone b. 3.Amino-2-pentanol

The Miller Urey experiment showed that amino acids could form in prebiotic conditions. Which of the following chemical species might have been observed as a result? Select all that apply. Carbon-rich molecule containing a thioester Carbon-rich molecule containing a disulfide Carbon-rich molecule with an attached iron metal ion Carbon-rich molecule containing a diphosphate group Carbon-rich molecule containing an alcohol Carbon-rich molecule with an attached magnesium metal ion Carbon-rich molecule containing a ketone

Create two  reactions of valine and phenylalanine combined  forming a dipeptide