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2 years ago

12.25ml of significant digits

Chemistry

1 answer:

Troyanec [42]2 years ago

4 0

Answer:

4 significant figures

Explanation:

____

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Explanation:

1. Word equation:

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2. Balanced molecular equation:

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3. Mole ratio

Write the ratio of the coefficients of the substances that are object of the problem:

$2molHgO/1molO_2$

4. Calculate the number of moles of O₂(g)

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$\dfrac{2molHgO}{1molO_2}\times 0.1576molO_2=0.315molHgO$

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mass = # moles × molar mass

molar mass of HgO: 216.591g/mol

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