Textbook Question
Germanium has five naturally occurring isotopes: 70^Ge, 20.5%, 69.924; 72^Ge, 27.4%, 71.922; 73^Ge, 7.8%, 72.923; 74^Ge, 36.5%, 73.921; and 76^Ge, 7.8%, 75.921. What is the atomic weight of germanium?
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Ch.2 - Atoms, Molecules & Ions
Chapter 2, Problem 126
If the atomic weight of an element is x, what is the mass in grams of 6.02 x 10^23 atoms of the element? How does your answer compare numerically with the atomic weight of element x?
Verified step by step guidance1
Step 1: Understand that 6.02 x 10^23 atoms is Avogadro's number, which represents one mole of atoms.
Step 2: Recognize that the atomic weight of an element in atomic mass units (amu) is numerically equal to the mass of one mole of that element in grams.
Step 3: Since the atomic weight of the element is given as x, the mass of one mole (6.02 x 10^23 atoms) of the element is x grams.
Step 4: Conclude that the mass in grams of 6.02 x 10^23 atoms of the element is x grams.
Step 5: Note that the mass in grams of 6.02 x 10^23 atoms is numerically equal to the atomic weight of the element, which is x.
Related Practice
Textbook Question
What is the mass in grams of each of the following samples?
(a) 1.505 mol of Ti
(b) 0.337 mol of Na
(c) 2.583 mol of U
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Textbook Question
How many moles are in each of the following samples?
(a) 11.51 g of Ti
(b) 29.127 g of Na
(c) 1.477 kg of U
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Textbook Question
If the atomic weight of an element is x, what is the mass in grams of 3.17 * 1020 atoms of the element?
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Textbook Question
If 6.02 * 1023 atoms of element Y have a mass of 83.80 g, what is the identity of Y?
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2
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Open Question
If 4.61 * 10^21 atoms of element Z have a mass of 0.815 g, what is the identity of Z?