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BartSMP [9]
2 years ago
8

Which of the following is accurate about the octet rule? -please explain your reasoning for answer

Chemistry
1 answer:
EleoNora [17]2 years ago
8 0

Answer:

Most of the time, nonmetals will form four covalent bonds in order to achieve a stable octet.

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baherus [9]

Answer: 1. 9.08\times 10^{-6} moles

2. 90 mg

Explanation:

O_3(g)+2NaI(aq)+H_2O(l) \rightarrow O_2(g)+I_2(s)+2NaOH(aq)

According to stoichiometry:

1 mole of ozone is removed by 2 moles of sodium iodide.

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2. \text{Number of moles of ozone}=\frac{0.01331g}{48g/mol}=0.0003moles

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1 mole of ozone is removed by 2 moles of sodium iodide.

Thus 0.0003 moles of ozone is removed by =\frac{2}{1}\times 0.0003=0.0006 moles of sodium iodide.

Mass of sodium iodide= moles\times {\text {molar mass}}=0.0006\times 150g/mol=0.09g=90mg    (1g=1000mg)

Thus 90 mg of sodium iodide are needed to remove 13.31 mg of O_3.

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