Problem: An unknown element E is found to have two isotopes. The atomic mass of E is 57.15 amu. The mass of the first isotope E - 56 is 56.482 amu, and its natural abundance is 69.19%. Calculate the mass of the second isotope of E? a. 68.38 amu b. 54.98 amu c. 58.65 amu d. 57.82 amu e. 56.82 amu

FREE Expert Solution
82% (438 ratings)
Problem Details

An unknown element E is found to have two isotopes. The atomic mass of E is 57.15 amu. The mass of the first isotope E - 56 is 56.482 amu, and its natural abundance is 69.19%. Calculate the mass of the second isotope of E?

a. 68.38 amu

b. 54.98 amu

c. 58.65 amu

d. 57.82 amu

e. 56.82 amu

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Atomic Mass concept. You can view video lessons to learn Atomic Mass. Or if you need more Atomic Mass practice, you can also practice Atomic Mass practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofAn unknown element E is found to have two isotopes. The atom...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Dasha took 4 minutes and 20 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Polanco's class at UF.