How many moles are in 25.2 g of c6h10s?

0.221 moles

Number of moles = Mass ÷ Molar mass

In this case;

Mass of C6H10S = 25.2 g

Molar mass of  C6H10S = 114.21 g/mol

Therefore;

Number of moles of C6H10S = 25.2 g ÷ 114.21 g/mol

                                               = 0.221 moles

Hence, the number of moles in 25.2 g of C6H10S is 0.221 moles

i believe it is-

d.) gravity pulled particles of dust and gas together to form planets.