Volume of water needed to mix with 10 mL N HCl to get 0.1 N HCl is
A 5.2 molal aqueous solution of methyl alcohol, CH3OH is supplied. What is the mole fraction of methyl alcohol in the solution? |
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A solution containing 10 g per dm3 of urea (molecular mass = 60) is isotonic with a 5% solution of a non–volatile solute. The molecular mass of this non–volatile solute is |
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The vapour pressure of pure water at 20°C is 17.5 mm Hg. If 18 g of glucose (C6H12O6) is added to 178.2 g of water at 20°C,the vapour pressure of resulting solution will be |
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0.004 M Na2SO4 is isotonic with 0.01 M Glucose. Degree of dissociation of Na2SO4 is |
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If α is the degree of dissociation of Na2SO4,the Van't Hoff factor (i) used for calculating the molecular mass is |
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In an oxidation reduction reaction, dichromate (Cr2O–2 |
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In the redox reaction, 2KMnO4 + 3H2SO4 + 5H2C2O4 → K2SO4 + 2MnSO4 + 8H2O + 10CO2 The volume of 0.1 M KMnO4 required to Oxidize 25 mL of 0.25 M H2C2O4solution is |
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138 grams of ethyl alcohol is mixed with 72 grams of water. The ratio of mole fraction of alcohol to water is |
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'x' grams of water is mixed in 69 grams of ethanol. Mole fraction of ethanol in the resultant solution is 0.6. What is the value of 'x' in grams? |
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In an oxidation reduction reaction, MnO4 ion is converted to Mn2+. What is the number of equivalents of KMnO4 (mol. wt = 158) present in 250 ml of 0.04 M KMnO4 solution? |
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