Question

If A = { a , b, c }, then write the power set P(A)​

Answer 1

Step-by-step explanation:

A = {1,2,3}

B : set of all subsets of A

List out all the subsets of A - {1},{2},{3},{1,2},{2,3},{1,3},{1,2,3},{empty set}

Number of elements in A (n) = 3 so 2^3 = 8

So, B = {{1},{2},{3},{1,2},{2,3},{1,3},{1,2,3},{empty set}} and the number of elements are 8.

Answer 2

Answer:

Average atomic mass = 100

Sum of the product of masses and natural abundances

The average atomic mass of argon = 100

35.96755(0.337)+37.96275(0.063)+39.9624(99.60)

= 39.94 g/mol.

I hope this will be help you.