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

RELATED QUESTIONS

Solutions

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

ChemistryA solute has observed molar mass \(80\,\mathrm{g\,mol^{-1}}\) and van't Hoff factor \(1.5\). What is its normal molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17HardChemistryWhen 5 g of an unknown solute is dissolved in 500 g of water, the freezing-point depression is 0.186 K. For water, K_f = 1.86 K kg mol⁻¹. What is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17MediumChemistryIn a boiling-point-elevation experiment, 3.0 g of a solute is dissolved in 75 g of solvent. If K_b = 0.75 K kg mol⁻¹ and ΔT_b = 0.30 K, what is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17MediumChemistryIn the freezing-point-depression method, 1.5 g of a solute is dissolved in 50 g of solvent. If K_f = 2.0 K kg mol^{-1} and ΔT_f = 0.60 K, what is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17MediumChemistryIn the osmotic-pressure method, 2.0 g of a solute is dissolved to make 250 mL of solution. At 300 K, the osmotic pressure is 0.984 atm. If R = 0.082 L atm K⁻¹ mol⁻¹, what is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18HardChemistryWhich mistake can greatly change the answer in a molar-mass determination problem involving molality?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18MediumChemistryA solution contains 2.5 g of solute dissolved in 500 g of solvent. If the molar mass of the solute is 50 g mol⁻¹, what is the molality of the solution?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18MediumChemistryIf a 0.30 m solution contains 3 g of solute dissolved in 100 g of solvent, what is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18MediumChemistryIf the freezing point of a solution is 272.44 K and that of the pure solvent is 273.00 K, what is ΔT_f?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18EasyChemistryIf the boiling point of a solution is 373.26 K and that of the pure solvent is 373.00 K, what is ΔT_b?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18EasyChemistryFor determining the molar mass of a solute in dilute solutions, the osmotic-pressure method is especially suitable for which type of substances?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18MediumChemistryIf vapour-pressure lowering calculation gives 0.2 mol of solute and the solute mass is 18 g, what is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18MediumChemistryIf the relative lowering of vapour pressure is 0.02 and the number of moles of solvent is 9.8, approximately how many moles of solute are present in the dilute solution?Class 12Chapter 01: Solutions4: Vapour PressureLevel 18MediumChemistryA solution contains 2 g of solute in 100 g of solvent. If the molar mass of the solute is 100 g mol⁻¹, what is the molality?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 18EasyChemistryA 0.02 mol sample of a substance has a mass of 3.6 g. What is the molar mass of the substance?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18EasyChemistryIf 0.01 mol of a substance is present in 100 mL of solution, what is its molarity?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 18EasyChemistryA solution contains 1.8 g of solute dissolved in 200 g of water. If its molality is 0.05 m, what is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18MediumChemistryA 0.6 g sample of a substance produces an osmotic pressure of 0.246 atm in 0.2 L of solution at 300 K. If R = 0.082 L atm K⁻¹ mol⁻¹, what is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18MediumChemistryIn the osmotic-pressure method, 1.5 g of solute is present in 500 mL of solution. If T = 300 K, π = 0.738 atm, and R = 0.082 L atm K⁻¹ mol⁻¹, what is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17MediumChemistryIf the actual molar mass of a solute is 60 g mol⁻¹ but the experimental value is 120 g mol⁻¹, which conclusion is suitable?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium