Asample of sodium carbonate unknown is dissolved in 50.0 ml of water. after performing experiment 3, the student determines that the second equivalence point occurs at 32.86 ml of 0.1115 m hcl. what is the theoretical ph of the solution after 35.00 ml of hcl have been added? report your answer to two significant figures.

answerleaving cheese out to get moldy;

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.