Question

How many moles are contained in each if the following? Report appropriate number of significant figures

a. 30.7g of CH₄

b.12.0g of H₂O

Answer 1

solutions CA no. of moles in 30.7g of Chy. molar mass of CH y = 16.04 g/mol no. of moles - Griven mass molar man So, no. of moles of City = 30.7 g 16.oug/mol no. of moles of city = log14 moll ct no. of moles in 12.0g of H₂o. molar mass of H₂O= 18.01 g/mol so, from equation is no. of moles of H₂O = 12.0g 18.01g/mol no. of moles of H2O = 0.666 molt