A 0.12kg of impure sugar is dissolved in water and solution is mad eupto `8xx10^(-4)m^(3)`. A length of 20cm of this solution causes a rotation of `15^(@)`. If the specific rotation of sugar is `60xx10^(@) deg//decimetre kg `m^(-3)`, what is the purity of sugar?
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An impure sample of calcium carbon contains 80% pure of impure sample reacted with excess of hydrochloric acid. Calculate the volume of carbon dioxide
100g of impure of calcium carbonate contain=80g pure of calcium carbonate 25g impure calcium carbonate sample contain `=(80)/(100)xx25` =20g of pure calcium carbonate The desired equation is `underset(100g)underset(1"mol")(CaCO_(3))+2HCl to CaCl_(2)+underset("at...
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3.6g mixture of sodium chloride and potassium chloride is dissolved in water. The solution is treated with excess of silver nitrate solution, 7.74g of
The balanced equation between in `NaCl and AgNO_(3)` `underset(58.8g)underset(1"mol")(NaCL)+AgNO_(3) to underset(143.5g)underset(1"mol")(AgCl_(3))+NaNO_(3)` Let x g of NaCl be present in the mixture. 58.5g NaCl produce= 143.5g AgCl x g NaCl will...
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A uniform rope of length 12m and mass 12kg hangs vertically from a rigid support. A block of mass 2kg is attached to free end of the rope. A traverse
`v=fllambda` `(lambda_(1))/(lambda_(2))=(v_(1))/(v_(2_sqrt(T_(1))/sqrt(T_(2))` `(0.05)/(lambda_(2))=sqrt((2xxg)/((2+6)g))=sqrt((1)/(4)=(1)/(2)` `lambda_(2)=0.1`
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Calculate the specific rotation of sugar solution from the following data: length of the polaimeter tueb=0.21 concentration of sugar solution =`80kgm^
Correct Answer - `0.01rad m^(-1)kg^(-1)m^(3)`
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Calculate the amount of sugar dissolved in `10^(-3)m^(3)` of water so as to produce ratation of plane of polarisation of `12^(@)`. Given the specific
Correct Answer - 0.01kg
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A 22cm long tube containing 88cc of sugar produces an optical rotation of `9.9^(@)` when placed in a polarimeter. If the amount of sugar in the soluti
Correct Answer - `66^(@)//"decimetre g" cm^(-3)`
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A solution of camphor in alcohol in a tube 20cm long is found to effect a rotation of the plane of viberation of light passing is of `33^(@)`. What mu
Correct Answer - `0.3055xx gcm^(-3)`
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A polarimeter tube of length 0.21m contains sugar solution of specific rotation 0.01 rad `m^(-1)kg^(-1)m^(3)` concentration. If the produced is `36^(@
Correct Answer - `299 kgm^(-3),18^(@)`
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10g sample of bleaching powder was dissolved into water to make the solution one litre. To this solution 35 mL of 1.0 M Mohr salt solution was added c
Correct Answer - 0.071
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(a) The length of Rameshs notebook is 9 cm 5 mm. What will be its length in cm? (b) The length of a young gram plant is 65 mm. Express its length in c
Correct Answer - (a) 9.5 सेमी: `" "`(b) 6.5 सेमी:
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