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5 molar solution of H2SO4 is diluted from 1 litre to 10 litres, the normality of the solution will be ...
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find the molarity of solution of 500 ml containing 29.2 g of HCl ...
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Minimum Volume of SO2 gas at STP which reduces 100 ml of 0.1 N K2Cr2O7 The reaction is K2Cr2O7+H2SO4+3SO2 → K2SO4+Cr2(SO4)3+4H2O ...
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How much of NaOH is reqd. to neutralize 1500 cm3 of 0.1 N HCl? ...
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Zn strip of mass 26 g is thrown in CuSO4 solution, find the mass of Cu formed ...
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how much g of HCl is reqd. to completely react with 13 g of Zn? ...
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To neutralize 100 ml 0.1 M H2SO4, NaOH reqd. is ...
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In a simple cubic cell, an atom is at the corner contributes to the unit cell ...
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In a face centred cubic cell, an atom at the face contributes to the unit cell ...
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The most unsymmetrical crystal system is: ...
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a≠b≠c, α≠β≠γ≠90° represents ...
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for trigonal the axial ratios & angles are ...
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Monoclinic can have the unit cells ...
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a=b=c, then crystal is ...
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given α=β=γ=90°, then the crystal is ...
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A solid with high electrical and thermal conductivity is ...
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solid CO2 is an example of ...
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Which of the following should have the highest melting point? ...
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Which of the following is a metallic crystalline solid? ...
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ZnS is an example of ...
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Which of the following is a non-crystalline solid? ...
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Amorphous solids are ...
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A hypothetical reaction, A→2B, proceeds through the following steps A→C ; ΔH=q1 C→D ; ΔH=q2 (1/2)D→B ; ΔH=q3 The heat of reaction is : ...
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The enthalpies of formation of N2O & NO are 82 & 90 kJ/mole respectively. The enthalpy of the reaction 2N2O(g)+O2(g)→4NO(g) is equal to ...
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The enthalpy of dissolution of BaCl2(s) and BaCl2.2H2O(s) are -30 kJ/mol and 10 kJ/mol respectively. The enthalpy of hydration for BaCl2(s)+2H2O→BaCl2.2H2O(s) is ...
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The amount of energy released when 20 ml of 0.5 M NaOH are mixed with 100 ml of 0.1 M HCl is z kJ. The heat of neutralization in kJ/mol is ...
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Given C(s)+O2(g)→CO2 ; ΔH=-395 kJ S(s)+O2(g)→SO2 ; ΔH=-295 kJ CS2(l)+3O2(g)→CO2+SO2 ; ΔH=-1110 kJ The heat of formation of CS2(l) is ...
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The heat of formation of CO & CO2 are -26.4 kcal & -94.6 kcal respectively. Heat of combustion of carbon monoxide will be ...
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When ammonium chloride is dissolved in water, the solution becomes cold. The change is ...
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the correct relationship between ΔH & ΔE for an ideal gas at const. temp. is ...
asked2009-04-15 21:12:45