Question

Calculate the number of moles in the following:

a) 4.6 g of sodium b) 1 mole of CO2c) 9 g of water.​

Answer 1

Answer:

a

mole(n)= weight(given)/Molecular weight

moles of Sodium(Na)=4.6/23=0.2

b

CO2= 1 mole already given

c

moles of water=9/(H2O=1*2+16)=0.2