Part IV: Calculations 1. (12 points) Silicon has three common isotopes. The masses of the first two isotopes and
percent abundances are as follows: 27.9769 amu, 92.23%
28.9765 amu, 4.67%
If the atomic mass of silicon is 28.0855 amu, what is the percent abundance of the third
isotope? What is its atomic mass?

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.

i think its 100.

hope this !

it is b that is the answer.