What is the molar mass of
c4h9, 114.17 g/mol

4 x 12 +9 x 1= 56

Explanation:

I do not know what the 114.17 g/mol comes from

According to my notes, nucleophilicity order is directly proportional to basicity order in an aprotic medium, and is inversely proportional to basicity order in protic medium. And H2O is a stronger base than H2S, so it should be the strong nucleophile, but the answer is given as H2S is the stronger nucleophile.

hope this helped, good luck <3