Scelta multipla
How many moles of oxygen gas are present in a balloon containing 20.0 grams of pure oxygen gas (O_2)?
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2. Atoms & Elements
Mole Concept
Scelta multipla
How many atoms are present in one mole of any element?
A
6.022 × 10^{23}
B
3.01 × 10^{23}
C
1.00 × 10^{6}
D
1.00 × 10^{23}
Guida verificata passo dopo passo1
Understand that a mole is a fundamental unit in chemistry used to count particles, such as atoms, molecules, or ions.
Recall Avogadro's number, which defines the number of particles in one mole of a substance.
Avogadro's number is approximately \(6.022 \times 10^{23}\) particles per mole.
Therefore, one mole of any element contains \(6.022 \times 10^{23}\) atoms.
Compare the given options to Avogadro's number to identify the correct answer.
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