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2 years ago

14

Aluminum reacts with a certain nonmetallic element to form a compound with the general formula AlX. Element X is a diatomic gas

at room temperature. Element X must be __________. Group of answer choices oxygen fluorine chlorine nitrogen sulfur

1 answer:

Sergio039 [100]2 years ago

5 0

Answer:

It's nitrogen

Explanation:

cuz it has valence 3 and a diatomic gas at room temperature

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Answer: 25.8 g of $Cl_2$ will be produced from the decomposition of 73.4 g of $AuCl_3$

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To calculate the moles :

$\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}$

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According to stoichiometry :

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Thus 0.242 moles of will produce= $\frac{3}{2}\times 0.242=0.363mol$ of $Cl_2$

Mass of $Cl_2$ = $moles\times {\text {Molar mass}}=0.363mol\times 71g/mol=25.8g$

Thus 25.8 g of $Cl_2$ will be produced from the decomposition of 73.4 g of $AuCl_3$

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2 years ago