1. calculate the number of moles in 3.79×10²³ molecules carbon dioxide.\n0.630 mol\n0.630×10²³…
1. calculate the number of moles in 3.79×10²³ molecules carbon dioxide.\n0.630 mol\n0.630×10²³ mol\n0.630×10²⁴ mol\n22.8 mol\nclear all
Answer
Explanation:
Step1: Recall Avogadro's number
Avogadro's number $N_A = 6.022\times 10^{23}\text{ molecules/mol}$.
Step2: Use the mole - molecule conversion formula
The number of moles $n=\frac{N}{N_A}$, where $N = 3.79\times 10^{23}$ molecules. So $n=\frac{3.79\times 10^{23}}{6.022\times 10^{23}}$.
Step3: Calculate the value of n
$n=\frac{3.79}{6.022}\approx0.630$ mol.
Answer:
0.630 mol