what is the molar mass of $\text{h}_2\text{so}_4$?

(molar mass of $\text{h} = 1.0079\text{ g/mol}$; $\text{s} = 32.065\text{ g/mol}$; $\text{o} = 15.999\text{ g/mol}$)

- 98.08 g/mol
- 88.22 g/mol
- 86.79 g/mol
- 79.02 g/mol

Question

what is the molar mass of $\text{h}_2\text{so}_4$?

(molar mass of $\text{h} = 1.0079\text{ g/mol}$; $\text{s} = 32.065\text{ g/mol}$; $\text{o} = 15.999\text{ g/mol}$)

- 98.08 g/mol
- 88.22 g/mol
- 86.79 g/mol
- 79.02 g/mol

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [], "new_concepts": [ "Molar Mass Calculation" ], "current_concepts": [ "Molar Mass Calculation", "Stoichiometry" ] } ## Identify the number of atoms of each element in $\text{H}_2\text{SO}_4$ $$ \begin{aligned} N_{\text{H}} &= 2 \ N_{\text{S}} &= 1 \ N_{\text{O}} &= 4 \end{aligned} $$ ## Calculate the total molar mass $$ \begin{aligned} M &= 2 \times 1.0079\text{ g/mol} + 1 \times 32.065\text{ g/mol} + 4 \times 15.999\text{ g/mol} \ M &= 2.0158\text{ g/mol} + 32.065\text{ g/mol} + 63.996\text{ g/mol} \ M &= 98.0768\text{ g/mol} \approx 98.08\text{ g/mol} \end{aligned} $$

(A) 98.08 g/mol

(B) 88.22 g/mol

(C) 86.79 g/mol

(D) 79.02 g/mol

{ "subject": "Natural Science", "question_type": "Multiple Choice", "knowledge_point": [ "Natural Science", "Chemistry", "Molar Mass Calculation" ] }

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QUESTION IMAGE

Question

Explanation:

Identify the number of atoms of each element in \(\text{H}_2\text{SO}_4\)

Calculate the total molar mass

Answer: