Question

calculate the number of molecules of sulphur present in 128 gram of sulphur​

Answer 1

Answer:

For that let us first write the values given in the question-$mass = 128g$, the molecular mass of \[{S_8}\]=$8 \times 32g = 256g$. Therefore, the number of molecules of Sulphur (\[{S_8}\]) is $3.011 \times {10^{23}}

Answer 2

Answer:

0.5 moles

Explanation:

molar mass of S8=32*8

=256g

no.of moles= given mass/ molar mass

128/256

0.5 moles