Pergunta

Convert 14.55 g of H_(2)O to moles. 0.808 moles 0.598 moles 0.687 moles 0.866 moles Convert 1.75 moles of NaCl to grams. 89.7 grams 102.3 grams 105.2 grams 98.5 grams
Solução

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GabrielProfissional · Tutor por 6 anos
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To convert grams of \( \mathrm{H}_{2} \mathrm{O} \) to moles, we use the molar mass of water. The molar mass of \( \mathrm{H}_{2} \mathrm{O} \) is approximately 18.015 g/mol.<br /><br />\[ \text{Moles of } \mathrm{H}_{2} \mathrm{O} = \frac{14.55 \, \text{g}}{18.015 \, \text{g/mol}} \approx 0.808 \, \text{moles} \]<br /><br />So, the correct answer is:<br />0.808 moles<br /><br />To convert moles of NaCl to grams, we use the molar mass of NaCl. The molar mass of NaCl is approximately 58.44 g/mol.<br /><br />\[ \text{Mass of NaCl} = 1.75 \, \text{moles} \times 58.44 \, \text{g/mol} \approx 102.3 \, \text{grams} \]<br /><br />So, the correct answer is:<br />102.3 grams
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