Answered: how many Br2 molecules are present in a…

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Chemistry

how many Br2 molecules are present in a 1.0-mL sample of pure liquid bromine?

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter4: Chemical Reactions

Section: Chapter Questions

Problem 4.102P: 4-102 Aspartame, an artificial sweetener used as a sugar substitute in some foods and beverages, has...

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Concept explainers

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.

Question

If liquid bromine has density = 3.12 g/mL, how many Br₂ molecules are present in a 1.0-mL sample of pure liquid bromine?

(A) 3.8 x 10²¹

(B) 7.5 x 10²¹

(D) 2.4 x 10²²

Expert Solution

Step 1

Number of moles = mass/molar mass

1 mol contains 6.022 × 10²³molecules

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