Percentage composition of Cu(OH)_{2}


Example Calculate the percentage by mass of each element in Cu(OH)_{2}.


What is the mass of copper that is present in 400 grams of Cu(OH)_{2} ? Since 65.13% of the mass of Cu(OH)_{2} is due to copper the mass of copper in 400 grams of Cu(OH)_{2} can be calculated by the equation below. 400 g X 65.13/100 = 260.52 grams 

1) Calculate the percentage composition of aluminium sulphate Al_{2}(SO_{4})_{3} 2) Calculate the mass of aluminium in 400 grams of Al_{2}(SO_{4})_{3} 3) Calculate the mass of oxygen in 400 grams of Al_{2}(SO_{4})_{3} 4) Calculate the percentage composition of copper carbonate CuCO_{3} 5) Calculate the mass of copper in 50 grams of CuCO_{3} Click to hide solution 1) Calculate the percentage
composition of aluminium sulphate Al_{2}(SO_{4})_{3}
2) Calculate the mass of
aluminium in 400 grams of Al_{2}(SO_{4})_{3}
3) Calculate the mass of
oxygen in 400 grams of Al_{2}(SO_{4})_{3 }
5)
Calculate the mass of copper in 50 grams of CuCO_{3}
