question 03\nhow many moles are in 4.3 x 10²²...
question 03\nhow many moles are in 4.3 x 10²² formula units of zncl₂?\n2.6x10⁴⁶ moles 0.071 moles 1.4 moles
Answer
# Explanation:
## Step1: Recall Avogadro's number
Avogadro's number ($N_A$) is $6.022\times 10^{23}$ formula - units/mol.
## Step2: Use the mole - formula unit conversion
The number of moles ($n$) is given by the formula $n=\frac{N}{N_A}$, where $N$ is the number of formula units. Here, $N = 4.3\times 10^{22}$ formula units. So, $n=\frac{4.3\times 10^{22}}{6.022\times 10^{23}}$.
## Step3: Calculate the number of moles
$n=\frac{4.3}{6.022}\times10^{22 - 23}\approx0.714\times10^{- 1}=0.071$ moles.
# Answer:
0.071 moles