a calorimeter absorbs 36,200 j of energy from the snack shown in the data below. how much energy does the snack provide per gram (j/g) according to the experiment?

\begin{tabular}{|c|c|}
\hline
\multicolumn{2}{|c|}{snack data} \\
\hline
initial mass (g) & 3.15 \\
\hline
final mass (g) & 1.85 \\
\hline
\end{tabular}

Question

a calorimeter absorbs 36,200 j of energy from the snack shown in the data below. how much energy does the snack provide per gram (j/g) according to the experiment?

\begin{tabular}{|c|c|}
\hline
\multicolumn{2}{|c|}{snack data} \\
\hline
initial mass (g) & 3.15 \\
\hline
final mass (g) & 1.85 \\
\hline
\end{tabular}

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "explain_then_answer", "tutor", "mastery_adaptive_brevity" ], "needs_drawing": false, "concepts_used": [ "Calorimetry Calculations" ], "new_concepts": [ "Energy Density Calculation" ], "current_concepts": [ "Calorimetry Calculations", "Energy Density Calculation" ] } ## Calculate mass of snack burned Using the *Calorimetry Calculations* knowledge point $$ \begin{aligned} m_{\text{burned}} &= m_{\text{initial}} - m_{\text{final}} \ m_{\text{burned}} &= 3.15\text{ g} - 1.85\text{ g} \ m_{\text{burned}} &= 1.30\text{ g} \end{aligned} $$ ## Calculate energy released per gram Determine energy density from absorbed heat. $$ \begin{aligned} \text{Energy per gram} &= \frac{q}{m_{\text{burned}}} \ \text{Energy per gram} &= \frac{36,200\text{ J}}{1.30\text{ g}} \ \text{Energy per gram} &\approx 27,846.15\text{ J/g} \end{aligned} $$ ## Round to significant figures Apply standard rounding rules. $$ \begin{aligned} \text{Significant figures} &= 3 \ \text{Rounded value} &= 27,800\text{ J/g} \end{aligned} $$ $27,800\text{ J/g}$ { "subject": "Natural Science", "question_type": "Free Response", "knowledge_point": [ "Natural Science", "Chemistry", "Calorimetry Calculations" ] }

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Question

Explanation:

Calculate mass of snack burned

Calculate energy released per gram

Round to significant figures

Answer: