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How much ethyl alcohol must be added to ...

How much ethyl alcohol must be added to 1 litre of water so that the solution will freeze at `- 14^@C` ? (Kf for water = `1.86^@C`/mol)

A

7.5 mol

B

8.5 mol

C

9.5 mol

D

10.5 mol

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Knowledge Check

  • How much ethyl alcohol C_2H_5OH , must be added to 1.00 L of water so that the solution will not freeze at -4^0F ?

    A
    211g
    B
    495 g
    C
    85 g
    D
    46 g

  • How much ethyl alcohol C_2H_5OH , must be added to 1.00 L of water so that the solution will not freeze at -4^0F ?

    A
    211g
    B
    495 g
    C
    85 g
    D
    46 g

  • The weight of ethyl alcohol which must be added to 1.0 L of water so that the solution will freeze at 14^@F is (K_f of water = 1.86 K kg mol^(-1) )

    A
    263.11 g
    B
    247.31 g
    C
    236.11 g
    D
    281.01 g
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