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:

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.

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