Question

The molecular weight of table salt, NaCl, is 58.5 g/mol. A tablespoon of salt weighs 6.37 grams. Calculate the number of moles of salt in one tablespoon.

A: 6.37 g NaCl
B: 1 mol NaCl
C: 58.5 g NaCl

Answer 1

The number of moles of salt in one tablespoon of NaCl is approximately 0.109 mol.

Step-by-step explanation:

The molecular weight of NaCl is 58.5 g/mol. To calculate the number of moles of salt in one tablespoon, we need to use the molar mass of NaCl. Since one tablespoon weighs 6.37 grams, we can calculate the number of moles using the formula:

moles = mass / molar mass

moles = 6.37 g / 58.5 g/mol

moles = 0.109 mol NaCl