Question

If the number of proper subsets of a set is 63 , find the

number of elements in the set ​

Answer 1

Answer:

2ⁿ - 1 = 63. => 2ⁿ = 64. => 2ⁿ = 2⁶ ... the number of elements in the set is 6.

Step-by-step explanation:

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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.

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