January 2018 NY Regents Chemistry Exam
33 The table below gives the atomic mass and the abundance of the two naturally occurring isotopes of boron.
Which numerical setup can be used to determine the atomic mass of the element boron?
Solution: To calculate the average atomic mass of an element, we take the atomic mass of each isotope and multiply by percent abundance in the decimal form ( divide by 100).
Answer: 1
Prepare for the Chemistry Regents Exam: HERE
Contact us for Regents Chemistry Tutoring: HERE