Question

How many grams are in 2.6 moles of ethanol (C2H5OH)?

Answer 1

Molar mass of ethanol

• 2(12)+5(1)+16+1
• 24+5+17
• 29+17
• 46g/mol

Mass:-

• No of moles×Molar mass
• 2.6(46)
• 119.6g

Answer 2

Molar mass of ethanol (C2H5OH)

=2(12)+6(1)+16.1

=46.1 g/mol

How many grams I.e.,

mass = no. of moles × molar mass

= 2.6×46.1

= 119.86g