Scelta multipla
Approximately how many atoms of carbon are present in a 120 gram sample of carbon (assume the sample is pure \(^{12}\)C)?
132
views
2. Atoms & Elements
Mole Concept
Scelta multipla
How many atoms are present in 1.50 moles of Hg?
A
6.02 × 10^{23} atoms
B
9.03 × 10^{23} atoms
C
3.01 × 10^{23} atoms
D
1.50 × 10^{24} atoms
Guida verificata passo dopo passo1
Identify the quantity given: 1.50 moles of Hg (mercury atoms).
Recall Avogadro's number, which is the number of atoms in one mole of any substance: \(6.02 \times 10^{23}\) atoms/mole.
Set up the calculation to find the total number of atoms by multiplying the number of moles by Avogadro's number: \(\text{Number of atoms} = 1.50 \text{ moles} \times 6.02 \times 10^{23} \text{ atoms/mole}\).
Perform the multiplication of the numerical coefficients (1.50 and 6.02) and add the exponents of 10 if necessary, keeping track of significant figures.
Express the final answer in scientific notation to represent the total number of atoms in 1.50 moles of Hg.
Video correlati
Pratica correlata
