Skip to content

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

RELATED QUESTIONS

Molar Mass Determination

Class 12 Chemistry के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ChemistryAn AB solute has a van’t Hoff factor i = 1.25 and an observed molar mass of 96 g mol⁻¹. What are its true molar mass and degree of dissociation?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryIf 0.3 g of a solute in 150 mL of solution gives an osmotic pressure of 0.123 atm at 300 K, and i = 1, what is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryA solute of concentration 0.02 M has an osmotic pressure of 0.984 atm at 300 K. If R = 0.082 L atm mol⁻¹ K⁻¹, what is the van’t Hoff factor (i), and what does it indicate about the solute’s behaviour?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryA solute forms trimers to the extent of 60%. If its true molar mass is 180 g mol⁻¹, what will be its observed molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryAn AB₂ solute has a true molar mass of 180 g mol⁻¹ and is 70% dissociated. What is its approximate observed molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryA solute has a van’t Hoff factor i = 2.25 and an observed molar mass of 64 g mol⁻¹. What is its true molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryWhen 4 g of a non-volatile solute is dissolved in 36 g of water, the relative lowering of vapour pressure is 0.08. What is the approximate molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryWhen 4.5 g of a solute is dissolved in 300 g of water, the depression in freezing point is 0.837 K. If i = 1.5, what is the true molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryIf K_b = 0.52 K kg mol⁻¹, the solute mass is 3 g, the solvent mass is 250 g, the molar mass of the solute is 60 g mol⁻¹, and the van’t Hoff factor i = 2, what is the elevation in boiling point, ΔT_b?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium ChemistryIf K_f = 1.86 K kg mol⁻¹, the solute mass is 4 g, the solvent mass is 200 g, the molar mass of the solute is 100 g mol⁻¹, and the van’t Hoff factor i = 1.5, what is the depression in freezing point, ΔT_f?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium ChemistryA 300 mL solution is prepared using 1.8 g of solute. At 300 K, its osmotic pressure is 0.492 atm. If i = 1.2, what is the true molar mass? Use R = 0.082 L atm K⁻¹ mol⁻¹.Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryWhen 1.5 g of a solute is dissolved in 100 g of water, the depression in freezing point is 0.186 K. If i = 0.75, what is the true molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryIf the true molar mass of a solute is 240 g mol⁻¹ and the colligative method gives an observed molar mass of 160 g mol⁻¹, what are i and the probable behaviour of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryWhen 2 g of a solute is dissolved in 0.4 kg of solvent, the effective molality is 0.10 m. If i = 0.5, what is the true molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryIf a 0.3 m solution has i = 0.6, what molality would appear from a colligative property if the van’t Hoff factor correction were ignored?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium ChemistryWhen 5 g of a solute is dissolved in 500 g of solvent, the elevation in boiling point is 0.078 K. If Kb = 0.52 K kg mol⁻¹ and i = 1.5, what is the true molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryWhen 3 g of a solute is dissolved in 250 g of water, the depression in freezing point is 0.465 K. If the van’t Hoff factor is 1.5, what is the true molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryA solution contains 2.4 g of solute in 400 mL of solution. Its osmotic pressure at 300 K is 0.492 atm. If i = 0.8, what is the true molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryIn the vapour-pressure method, p⁰ = 120 mmHg and p = 114 mmHg. If 3 g of solute is dissolved in 54 g of water, what is the approximate molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryWhen 1.8 g of a solute is dissolved in 150 g of water, the depression in freezing point is 0.279 K. If i = 0.75, what is the true molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard