0.50 moles solute in 0.25 kilograms of solvent yields molality of?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Study for the Honors Chemistry Exam with flashcards and multiple choice questions. Enhance your understanding with detailed explanations and hints. Prepare to excel in your exam!

Multiple Choice

0.50 moles solute in 0.25 kilograms of solvent yields molality of?

Explanation:
Molality is moles of solute per kilogram of solvent. So with 0.50 moles of solute and 0.25 kg of solvent, the molality is 0.50 ÷ 0.25 = 2.0 mol/kg. The result is 2.0 molal (2.0 m). This quantity is temperature-independent because it uses mass rather than volume, which is why it’s particularly useful for analyzing colligative properties. If you increased the solvent mass while keeping the solute the same, the molality would decrease in proportion.

Molality is moles of solute per kilogram of solvent. So with 0.50 moles of solute and 0.25 kg of solvent, the molality is 0.50 ÷ 0.25 = 2.0 mol/kg. The result is 2.0 molal (2.0 m). This quantity is temperature-independent because it uses mass rather than volume, which is why it’s particularly useful for analyzing colligative properties. If you increased the solvent mass while keeping the solute the same, the molality would decrease in proportion.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy