CHM203 Organic chemistry Ii TMA 3

Question 1 give reason to why ethanoate ion are called conjugate base of ethanoic acid?

Answer is because ethanoate can accept proton to become ethanoic acid

Question 2 what is a steric effect?

Answer it effects arising from spatial interactions between the groups

Question 3 arrange this group in the order of increasing basicity

Question 4 when an electron donating atom x is introduced into the adjacent carbon atom of ethanoic acid what will become of the strength of that acid

Answer it the electron density will increase

question 5 the pka value for some prostate acid E=25 F=19, G= – 6, and h = 27, which of this acid is the strongest?

Answer is G

question 6 methylammonium ion is a conjugate base of methylamine true or false?

answer is true

Question 7 hydroxyl ion is a conjugate base of water true or false?

Answer is true

Question 8 define acid in prostate and lowry perspective?

Answer is an acid is a proton donor

Question 9 which of these statement is not true about the strength of a conjugate base?

Answer is stronger the acid the highest pka value

Question 10 define acid according to arrhenius 1884?

Answer it an acid is a substance which ionize in aqueous solution to produce hydrogen ion.

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