CHEMISTRY 108

YORK COLLEGE/CUNY Chemistry 108 Exam 2 Part I: Multiple Choice (60 pts) 1. What is the molecular mass of Br2? A) 79.90 amu B) 79.90 g C) 159.8 amu D) 159.8 g E) 2.65 x 10-22 amu 2. Which one of the following does not represent 1.000 mol of the indicated substance? A) 6.022 × 1023 C atoms B) 26.00 g Fe C) 12.01 g C D) 65.39 g Zn E) 6.022 × 1023 Fe atoms 3. Boron obtained from borax deposits in Death Valley consists of two isotopes. They are boron-10 and boron-11 with atomic masse...

YORK COLLEGE/CUNY Chemistry 108 Exam 2 Part I: Multiple Choice (60 pts) 1. What is the molecular mass of Br2? A) 79.90 amu B) 79.90 g C) 159.8 amu D) 159.8 g E) 2.65 x 10-22 amu 2. Which one of the following does not represent 1.000 mol of the indicated substance? A) 6.022 × 1023 C atoms B) 26.00 g Fe C) 12.01 g C D) 65.39 g Zn E) 6.022 × 1023 Fe atoms 3. Boron obtained from borax deposits in Death Valley consists of two isotopes. They are boron-10 and boron-11 with atomic masse...

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