Calculate The number of molecules of sulphar in 16g of solid sulphar?

Answer 1

To calculate the number of molecules of sulfur in 16g of solid sulfur, you first need to determine the molar mass of sulfur. The molar mass of sulfur is approximately 32g/mol.

Next, you need to convert the given mass of sulfur into moles using the formula:

Number of moles = mass (g) / molar mass (g/mol)

Number of moles = 16g / 32g/mol
Number of moles = 0.5 moles

Finally, you need to use Avogadro's number (6.022 x 10^23) to convert the number of moles of sulfur into the number of molecules:

Number of molecules = Number of moles x Avogadro's number
Number of molecules = 0.5 moles x 6.022 x 10^23 molecules/mol
Number of molecules = 3.011 x 10^23 molecules

Therefore, there are approximately 3.011 x 10^23 molecules of sulfur in 16g of solid sulfur.