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।

ChemistryIf the observed molar mass of a solute is greater than its actual molar mass, which phenomenon does this generally indicate?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Easy ChemistryDuring molar-mass determination by the elevation-in-boiling-point method, for which solute is the observed molar mass likely to be greater than its true molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium ChemistryWhich colligative property is considered most suitable for determining the molar mass of high-molar-mass substances such as proteins?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Easy ChemistryA solution contains 0.25 g of solute in 250 mL of solution. At 300 K, its osmotic pressure is 0.246 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 17Medium ChemistryA solution contains 2 g of solute in 200 g of solvent. If Kf = 4.0 K kg mol⁻¹ and ΔTf = 0.50 K, what is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium ChemistryIf the molar mass of a solute obtained by the osmotic pressure method is unusually large, which experimental cause should be checked first?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium ChemistryWhich colligative property is most suitable for determining the molar mass of proteins having very high molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium ChemistryIf a \(0.1\,\mathrm{mol\,kg^{-1}}\) solution has a boiling-point elevation of \(0.104\,\mathrm{K}\), and \(K_b=0.52\,\mathrm{K\,kg\,mol^{-1}}\), what is the van't Hoff factor \(i\)?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium ChemistryWhich property is required to determine the molar mass of a solute by the freezing-point-depression method?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Easy ChemistryWhen \(1.2\,\mathrm{g}\) of a substance is dissolved in \(60\,\mathrm{g}\) of solvent, \(\Delta T_f=0.40\,\mathrm{K}\). If \(K_f=2.0\,\mathrm{K\,kg\,mol^{-1}}\), what is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium ChemistryWhile determining the molar mass of an unknown solute by the osmotic-pressure method, which type of solution is most suitable?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium ChemistryWhich colligative property is most suitable for determining the molar mass of a high-molar-mass solute such as a polymer?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium ChemistryWhen \(2\,\mathrm{g}\) of a non-dissociating solute is dissolved in \(100\,\mathrm{g}\) of solvent, \(\Delta T_b=0.52\,\mathrm{K}\). If \(K_b=0.52\,\mathrm{K\,kg\,mol^{-1}}\), what is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium ChemistryIf the solvent mass in a freezing-point-depression experiment is incorrectly recorded as \(120\,\mathrm{g}\) instead of \(100\,\mathrm{g}\), while all other values are correct, how will the calculated molar mass compare with the actual value?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryIf \(K_b\) is correct but \(\Delta T_b\) is measured 20% higher than its actual value during molar-mass determination, how will the calculated molar mass compare with the actual molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard 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 17Hard ChemistryWhen 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 17Medium ChemistryIn 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 17Medium ChemistryIn 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 17Medium ChemistryIn 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 18Hard