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qid 3674 · chemistry
Question: What are the mole fractions of solute and solvent in a solution prepared by dissolving 98 g H_2SO_4 (M.W. 98) in 162 g H_20 (M.W. 18)?
- Mole fraction of H_2SO_4 = 0.1, Mole fraction of H_2O = 0.9
- Mole fraction of H_2SO_4 = 0.05, Mole fraction of H_2O = 0.95
- Mole fraction of H_2SO_4 = 0.8, Mole fraction of H_2O = 0.2
- Mole fraction of H_2SO_4 = 0.5, Mole fraction of H_2O = 0.5
- Mole fraction of H_2SO_4 = 0.6, Mole fraction of H_2O = 0.4
- Mole fraction of H_2SO_4 = 0.7, Mole fraction of H_2O = 0.3
- Mole fraction of H_2SO_4 = 0.9, Mole fraction of H_2O = 0.1
- Mole fraction of H_2SO_4 = 0.3, Mole fraction of H_2O = 0.7
- Mole fraction of H_2SO_4 = 0.4, Mole fraction of H_2O = 0.6
- Mole fraction of H_2SO_4 = 0.2, Mole fraction of H_2O = 0.8
Our answer: A. Mole fraction of H_2SO_4 = 0.1, Mole fraction of H_2O = 0.9 Source quote machine-checked (exact quote)
How it was answered
Multi-step solver (maze), replayed by code
Current source
OpenStax Chemistry 2e, Section 11.4 Colligative Properties
https://openstax.org/books/chemistry-2e/pages/11-4-colligative-properties
“The mole fraction, X, of a component is the ratio of its molar amount to the total number of moles of all solution components:”
Source quote machine-checked (exact quote)
Earlier version (superseded)
https://openstax.org/books/chemistry-2e/pages/11-4-colligative-properties
Source weak (http_get_200_text_and_question_terms)
Earlier version (superseded)
No public source has been found for this card yet (3 places checked internally).
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