determine the formula weight of al₂(so₄)₃. provide an answer to two decimal places.

Question

Accepted Answer

# Explanation:
## Step1: Calculate the atomic weight of each element
- Aluminum ($Al$): $26.98$ amu, and there are $2$ $Al$ atoms. So $2\times26.98 = 53.96$ amu.
- Sulfur ($S$): $32.07$ amu, and there are $3$ $S$ atoms. So $3\times32.07=96.21$ amu.
- Oxygen ($O$): $16.00$ amu, and there are $12$ $O$ atoms ($3\times4$). So $12\times16.00 = 192.00$ amu.
## Step2: Sum up the weights
Add the weights of $Al$, $S$, and $O$ together: $53.96+96.21 + 192.00$.
$$
\begin{align*}
&53.96+96.21+192.00\
=&(53 + 96+192)+(0.96 + 0.21+0.00)\
=&341+1.17\
=&342.17
\end{align*}
$$

# Answer:
$342.17$ amu

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QUESTION IMAGE

Question

Explanation:

Step1: Calculate the atomic weight of each element

Step2: Sum up the weights

Answer: