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Dominik [7]
3 years ago
15

Using the periodic table, complete the following. Element: hydrogen symbol: H₂ Molecular weight: g Mass of one mole: g/mol

Chemistry
2 answers:
NNADVOKAT [17]3 years ago
7 0

I think the mass is 88.54g/mol.

Alex Ar [27]3 years ago
6 0

Answer:

(Rounded to the thousandth)

Molecular Weight - 2.016 g

Mass of one mole - 1.008 g

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3 years ago
When methane ( CH4 ) burns, it reacts with oxygen gas to produce carbon dioxide and water. The unbalanced equation for this reac
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<h2>Answer:</h2>1.33*10^{-2}grams

<h2>Explanations</h2>

The complete balanced equation for the given reaction is expressed as;

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\begin{gathered} moles\text{ of H}_2O=\frac{2}{1}\times0.000368 \\ moles\text{ of H}_2O=0.000736moles \end{gathered}

Determine the mass of water produced

\begin{gathered} Mass\text{ of H}_2O=moles\times molar\text{ mass} \\ Mass\text{ of H}_2O=0.000736\times18.02 \\ Mass\text{ of H}_2O=0.0133grams=1.33\times10^{-2}grams \end{gathered}

Therefore the mass of water produced from the complete combustion of 5.90×10−3 g of methane is 1.33 * 10^-2grams

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