. Ques3. How many moles are present in 4 gram of sodium hydroxide? (atomic mass of[sodium=23 u, oxygen= 16 u and hydrogen = 1u).

. Ques3. How many moles are present in 4 gram of sodium hydroxide? (

1.	. Ques3. How many moles are present in 4 gram of sodium hydroxide? (atomic mass of[sodium=23 u, oxygen= 16 u and hydrogen = 1u).
Answer» TION:NaOH SODIUM hydroxideGram MOLECULAR Mass=Mass of Na+Mass of O+Mass of H=23+16+1=40gGiven mass=160gNo. of MOLES= Gram Molecular Mass _________________Given mmas=40___160 =4 molThe moles of NaOH contained in 160g of it is 4 mole