$\text{caco}_3$ decomposes: $\text{caco}_3(\text{s}) \
ightarrow \text{cao}(\text{s}) + \text{co}_2(\text{g})$. use the equation to find the moles of $\text{cao}$ formed from $10.0\text{ g}$ of $\text{caco}_3$.

calculate the mass of $\text{cao}$ formed. $m_r$ of $\text{cao} = 56$.

Question

$\text{caco}_3$ decomposes: $\text{caco}_3(\text{s}) \
ightarrow \text{cao}(\text{s}) + \text{co}_2(\text{g})$. use the equation to find the moles of $\text{cao}$ formed from $10.0\text{ g}$ of $\text{caco}_3$.

calculate the mass of $\text{cao}$ formed. $m_r$ of $\text{cao} = 56$.

Accepted Answer

{ "quality": "clear", "question_count": 2, "skills_matched": [ "step_cot", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Molar Mass Calculation", "Stoichiometric Calculations" ], "new_concepts": [ "Thermal Decomposition" ], "current_concepts": [ "Molar Mass Calculation", "Stoichiometric Calculations", "Thermal Decomposition" ] } ## Calculate the moles of $\text{CaCO}_3$ $$ \begin{aligned} M(\text{CaCO}_3) &= 40.1 + 12.0 + 3 \times 16.0 = 100.1\text{ g/mol} \ n(\text{CaCO}_3) &= \frac{10.0\text{ g}}{100.1\text{ g/mol}} \approx 0.100\text{ mol} \end{aligned} $$ ## Determine the moles of $\text{CaO}$ formed $$ \begin{aligned} \text{Ratio} &: 1\text{ mol }\text{CaCO}_3 : 1\text{ mol }\text{CaO} \ n(\text{CaO}) &= n(\text{CaCO}_3) = 0.100\text{ mol} \end{aligned} $$ ## Calculate the mass of $\text{CaO}$ formed $$ \begin{aligned} M(\text{CaO}) &= 56\text{ g/mol} \ m(\text{CaO}) &= 0.100\text{ mol} \times 56\text{ g/mol} = 5.6\text{ g} \end{aligned} $$ ## Question 1 $0.100\text{ mol}$ ## Question 2 $5.6\text{ g}$ { "subject": "Natural Science", "question_type": "Multi-part", "knowledge_point": [ "Natural Science", "Chemistry", "Stoichiometry" ] }

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Question

Explanation:

Calculate the moles of \(\text{CaCO}_3\)

Determine the moles of \(\text{CaO}\) formed

Calculate the mass of \(\text{CaO}\) formed

Answer:

Question 1

Question 2