Show You Know It: Mole Relationships
How many moles of alanine, C3H7NO2, are there in 159g of alanine? Alanine's molar mass is 89.1g/mol
022 x 1023 for Avogadro's number
Number
• Molar Mass
Mes

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.

159 g of alanine correspond to 1.78 moles.

You can learn more about molar mass here: link

1.78 is the correct answer.

Explanation:

if the concentration of products is decreased, the equilibrium will shift toward the products). add an inert gas (one that is not involved in the reaction) to the constant-volume reaction mixture: this will increase the total pressure of the system, but will have no effect on the equilibrium condition.

explanation: