Compare each of the mechanisms listed here with the mechanism for each of the two parts of the acid-catalyzed hydrolysis of an ester, indicating similarities and differences. 1. acid-catalyzed formation of a hydrate 2. acid-catalyzed conversion of an aldehyde to a hemiacetal 3. acid-catalyzed conversion of a hemiacetal to an acetal 4. acid-catalyzed hydrolysis of an amide Part APart complete Which of the mechanisms have portions that may be compared where a tetrahedral compound is formed from a carbonyl compound

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.