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How many grams of glucose will be required to have solution having 10%w/w concentration?
If a solution is described by 10% glucose in water by mass, it means that 10 g of glucose is dissolved in 90 g of water resulting in a 100...
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How many grams of glucose will be required to have solution having 10%w/w concentration?
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Hydrolysis of sucrose gives, Sucrose + H2O → Glucose + Fructose Equilibrium constant Kc for the reaction is 2 × 1013 at 300 K. Calculate ΔG0 at 300 K.
ΔG0 = – RT lnKc ΔG0 = – 8.314 × 300 × ln( 2×1013 ) ΔG0 = – 7.64 ×104 J/mol.
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John placed 10 moles of sulphur molecules (S8) and 5 moles of glucose (C6H12O6) in the two different pans of a physical balance.
Molecular mass of sulphur molecules (S8) = 32 × 8 = 256 gm Molecular mass of glucose (C6H12O6) =(6 × 12) +( 1 × 12) +( 6 × 16) = 72 + 12 +...
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Calculate percentage composition of glucose (C6H12O6). (Atomic mass: C = 12, H = 1, O = 16)
Molecular mass of glucose (C6H12O6) = 6 × 12 + 1 × 12 + 6 × 16 = 72 + 12 + 96 = 180 g %of carbon(C) in glucose =...
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Write the molecular formulae for the following compounds (a) Copper (II) bromide (b) Aluminium (III) nitrate (c) Calcium (II) phosphate
(a) CuBr2 (b) Al(NO3)3 (c) Ca3(PO4)2 (d) Fe2 S3 (e) HgCl2 (f) Mg(CH3 COO)2
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At 300 K, 36 g of glucose present in a litre of its solutio
Mass of glucose, w =36 g Osmotic pressure, π = 4.98 bar Temperature, T = 300 K Volume of solution, V = 1L The formula of osmotic pressure= Π = CRT n/vRT Plug the value and solve for R we get R =...
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Write the chemical equations of the following reactions : (a) Glucose is heated with conc. H2SO4
[Hint : (a) (b) NaNO3 + H2SO4 =>NaHSO4 + HNO3]
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Enumerate the reactions of D-glucose which cannot be explained by its open chain structure.
(1) Aldehydes give 2, 4-DNP test, Schiff’s test, and react with NaHSO4 to form the hydrogen sulphite addition product. However, glucose does not undergo these reactions. (2) The pentaacetate of glucose...
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Glucose or sucrose are soluble in water but cyclohexane or benzene (simple six
A glucose molecule contains five −OH groups while a sucrose molecule contains eight −OH groups. Thus, glucose and sucrose undergo extensive H-bonding with water. Hence, these are soluble in water. But...
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