Home
Class 11
CHEMISTRY
In a polymer sample, 30% molecules have ...

In a polymer sample, 30% molecules have molecular mass 20000, 40% have molecular mass 30000 and the rest 30% have 60000. Calculate their number average and mass average molecular masses.

Text Solution

AI Generated Solution

To calculate the number average molecular mass (Mn) and the mass average molecular mass (Mw) of the polymer sample, we can follow these steps: ### Step 1: Identify the molecular masses and their percentages - Molecular mass 1 (M1) = 20,000 g/mol, Percentage (P1) = 30% - Molecular mass 2 (M2) = 30,000 g/mol, Percentage (P2) = 40% - Molecular mass 3 (M3) = 60,000 g/mol, Percentage (P3) = 30% ### Step 2: Calculate the number average molecular mass (Mn) ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • POLYMERS

    OP TANDON|Exercise PROBLEMS FOR PRACTISE|6 Videos

  • POLYMERS

    OP TANDON|Exercise LEVEL A|1 Videos

  • OXIDATION AND REDUCTION (REDOX REACTIONS)

    OP TANDON|Exercise SECTION V|3 Videos

  • PROBLEMS BASED UPON STRUCTURES AND REACTIONS OF ORGANIC COMPOUNDS

    OP TANDON|Exercise Some Solved Problems|21 Videos

Similar Questions

Explore conceptually related problems

In a polymer sample 30% molecules have a molecular mass 20,000 , 40% have molecular mass 30,000 and rest have 60,000 .The number average molecular mass is x times10^(4) then x is

In a polymer sample 30\% moleculess have molecular mass 20,000, 40\% molecular have molecular mass 30,000 and rest have molecular mass 60,000. calculate the mass average and number average molecular weights.

Knowledge Check

  • In a polymer sample, 30% of molecules have a molecualr mass of 20,000, 40% have 30,000 and the rest 60,000. What is the weight average molecular mass of the polymer?

    A
    403000
    B
    306000
    C
    43333
    D
    50400

  • In a polymer sample 30% of molecules have a molecular mass 20,000 , 40 % have 30,000 and the rest 60,000 . What is the weight average molecular mass of the polymer

    A
    40300
    B
    30600
    C
    43333
    D
    50400

  • A sample of polymer contains 30% molecules with molecular mass 20,000, 40% with molecular mass 30,000 and 30% with 60,000. What is the number average molecular mass of the polymer?

    A
    36000
    B
    48000
    C
    50000
    D
    25000

    • Similar Questions

    Explore conceptually related problems

    A sample of polymer contains 30% molecules with a molecular mass 20,000 , 40% with molecular mass 30,000 and 30 % with 60,000 ." .What is the number average molecular mass of the polymer?

    Calculate the average molecular mass of a polymer sample in which 30% molecules have a molecular mass 20,000, 40% have 30,000, and rest have 60,000. Strategy: Work out number average molecular mass (overline(M_(n))) as well as weight average molecular mass (bar(M_(w)))

    Calaulate the average molecules mass of a polymer sample in which 30% molecules have a molecular mass of 20,000,40% have 30,000 ,and the rest 30% have 60,000

    A polymeric sample in which 30% molecules have a molecules mass 20,000 ,40%, have 30,000 and the rest 30% have 60,000 .The (Mbar(n)) and(Mbar(w)) of this sample was:

    Lipids have a molecular mass of :

    Home
    Profile