If there are 8.24 x 1022 molecules of NaCl in a salt shaker, what is the mass of the salt? First find the number of moles, then convert to grams.

To find the mass of the salt, we need to first calculate the number of moles of NaCl.

Step 1: Convert the given number of molecules to moles. To do this, we need to know Avogadro's number, which is approximately 6.022 x 10^23 molecules per mole.

Given: 8.24 x 10^22 molecules of NaCl

To find the number of moles, we divide the given number of molecules by Avogadro's number: Number of moles = (8.24 x 10^22 molecules) / (6.022 x 10^23 molecules/mol)

Step 2: Calculate the mass of NaCl in grams. To convert moles to grams, we need to know the molar mass of NaCl, which is approximately 58.44 g/mol.

Given: Number of moles of NaCl

To find the mass, we multiply the number of moles by the molar mass: Mass of NaCl = Number of moles x Molar mass

Therefore, to find the mass of the salt, we can follow these steps:

1. Calculate the number of moles of NaCl using the given number of molecules and Avogadro's number.
2. Multiply the number of moles by the molar mass of NaCl to find the mass in grams.