University:
Boston University
Course:
CAS CH 101 | General Chemistry 1
Academic year:

2023
Views:

399

Pages:

1
Author:

yvessurelzvx4

Chlorine isotopes 1 There are two naturally occurring isotopes of chlorine, Cl-35 and Cl-37. Which of the following statements is correct. A B C D E 2 The molar mass of Cl is 35.453. 35Cl has a natural abundance of 75.78%. Which of the following statements is always true? A B C D 3 The mass of atom of naturally occurring chlorine is 35.453 divided by Avogadro's number. The mass of atom of naturally occurring chlorine cannot be 35.453 divided by Avogadro's number. The mass of atom of naturally occurring chlorine is 35.453/0.7578 divided by Avogadro's number. None of the statements is true. The atomic mass of chlorine is listed as 35.453. 35Cl has a natural abundance of 75.78% and an atomic mass of 34.968852721. Is this sufficient information to determine the atomic mass of 37Cl? A B C 4 Cl-35 has 35 protons, 35 neutrons, and 35 electrons Cl-35 has 17 protons, 35 neutrons, and 17 electrons Cl-35 has 17 protons, 18 neutrons, and 35 electrons Cl-35 has 17 protons, 18 neutrons, and 17 electrons None of the above Yes No I am not sure The atomic mass of chlorine is listed as 35.453. 35Cl has a natural abundance of 75.78% and an atomic mass 35Cl = 34.968852721. Which of the following is a true about the atomic mass 37Cl? A B C D (0.7578 x 34.968852721) + (1 - 0.7578) x 37Cl = 35.453 (0.7578 x 34.968852721) - (0.7578 x 37Cl) = 35.453 Neither of these statements is correct Both of these statements is corrrct