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Chapter 2: Q111CP (page 40)

The mole is defined in terms of the carbon-12 atom. Use the definition to find (a) the mass in grams equal to 1 atomic mass unit; (b) the ratio of the gram to the atomic mass unit.

Short Answer

Expert verified

(a) The mass in gram that is equal to 1 amu is 1.661 x 10-24 g12c

(b) The ratio of the gram to amu is 1.661 x 10-24 g / amu

Step by step solution

01

a. Step 1: Finding the mass in grams equal to 1 atomic mass unit

It is known that:

mC12=12鈥�amu1鈥�amu=112.(mC12)鈥�鈥�鈥�鈥�鈥�鈥�鈥�鈥�鈥�鈥�鈥�鈥�鈥�鈥�=112.12鈥�g6.022.1023鈥�鈥�鈥�鈥�鈥�鈥�鈥�鈥�鈥�鈥�鈥�鈥�鈥�鈥�=1.661脳10-24g.

02

b.Step 2: Finding the ratio of the gram to the atomic mass unit

The ratio of the gram to atomic mass unit is 1.661 x 10-24 g/amu

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