a) Define atomic mass? b) The percentage of the three elements calcium, carbon and oxygen in a sample ofcalcium carbonate is: Calcium=40% ; Carbon= 12% ; Oxygen=48% If the law of constant proportion is true, what weights of these elements will be presentin 4 g of another sample of calcium carbonate [ atomic mass of Ca=40 U, C=12 U, O=16 U]
Answers
Answered by
0
Answer:
a)The atomic mass is the mass of an atom. Although the SI unit of mass is the kilogram, atomic mass is often expressed in the non-SI unit atomic mass unit or unified mass or dalton, where 1 amu or 1 u or 1 Da is defined as 1⁄12 of the mass of a single carbon-12 atom, at rest
b)The percentage compositions of the elements of calcium carbonate are given as: Ca = 40%; C = 12%; O = 48%.
Explanation:
have a nice day
hope it helps
Similar questions