Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

An aqueous solution has molality 5. What is the approximate mole fraction of solute?

Answer and explanation

Correct answer: 0.083

A 5 molal aqueous solution contains 5 mol of solute in 1 kg of water. Taking the molar mass of water as 18 g mol−1, 1 kg water contains 1000 ÷ 18 ≈ 55.5 mol water. Total moles are therefore 5 + 55.5 = 60.5 mol. The solute mole fraction is 5 ÷ 60.5 ≈ 0.083. Thus option B is correct; molality itself is not a mole fraction.

Related tags

MolalityMole FractionAqueous SolutionMole ConceptMole Concept And Molar MassSome Basic Concepts Of ChemistryChemistryClass 11 Mcq

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.