159 g of alanine correspond to 1.78 moles.
We have a mass (m) of 159 g of alanine (C₃H₇NO₂), whose molar mass (M) is 89.1 g/mol. We can find the number of moles (n) using the following expression.
[tex]n = \frac{m}{M} = \frac{159 g}{89.1 g/mol} = 1.78 mol[/tex]
159 g of alanine correspond to 1.78 moles.
You can learn more about molar mass here: https://brainly.com/question/22997914
