What is the composition, in atom percent, of an alloy that consists of a) 5.5 wt% Pb and b) 94.5 wt% of Sn? Assume that the atomic weight for lead and tin are 207.2 and 118.71 g/mol, respectively.

Answer : The percent composition of Pb and Sn in atom is, 3.21 % and 96.8 % respectively.

Explanation :

First we have to calculate the number of atoms in 5.5 wt% Pb and 94.5 wt% of Sn.

As, 207.2 g of lead contains atoms

So, 5.5 g of lead contains atoms

and,

As, 118.71 g of lead contains atoms

So, 94.5 g of lead contains atoms

Now we have to calculate the percent composition of Pb and Sn in atom.

and,

Thus, the percent composition of Pb and Sn in atom is, 3.21 % and 96.8 % respectively.

i look it up online and i'll tell you

the child will have heterozygous dominant chromosomes as characters of his father are dominant over the characters of his mother.

the child is heterozygous