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Chapter 2: Problem 17

Calculate the mass ratio of a bromine atom to an atom of (a) neon (b) calcium (c) helium

Short Answer

Expert verified
Answer: (a) The mass ratio of a bromine atom to an atom of neon is 3.96, (b) the mass ratio of a bromine atom to an atom of calcium is 1.99, and (c) the mass ratio of a bromine atom to an atom of helium is 19.98.

Step by step solution

01

Find the atomic masses of bromine, neon, calcium, and helium

You can find the atomic masses of these elements in the periodic table. You will find that: - Bromine (Br) has an atomic mass of approximately 79.9 - Neon (Ne) has an atomic mass of approximately 20.2 - Calcium (Ca) has an atomic mass of approximately 40.1 - Helium (He) has an atomic mass of approximately 4.0
02

Calculate the mass ratio of bromine to neon

To find the mass ratio of bromine to neon, divide the atomic mass of bromine by the atomic mass of neon: Mass ratio = (Mass of Br)/(Mass of Ne) = (79.9)/(20.2) = 3.96
03

Calculate the mass ratio of bromine to calcium

To find the mass ratio of bromine to calcium, divide the atomic mass of bromine by the atomic mass of calcium: Mass ratio = (Mass of Br)/(Mass of Ca) = (79.9)/(40.1) = 1.99
04

Calculate the mass ratio of bromine to helium

To find the mass ratio of bromine to helium, divide the atomic mass of bromine by the atomic mass of helium: Mass ratio = (Mass of Br)/(Mass of He) = (79.9)/(4.0) = 19.98 In conclusion, (a) The mass ratio of a bromine atom to an atom of neon is 3.96 (b) The mass ratio of a bromine atom to an atom of calcium is 1.99 (c) The mass ratio of a bromine atom to an atom of helium is 19.98

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