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Calculate the molarity and molarity of a...

Calculate the molarity and molarity of a solution of ethanol in water if the molre fraction of ethanol is `0.05` and the density of solution is `0.997` g/"cc"

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To solve the problem of calculating the molarity and molality of a solution of ethanol in water given the mole fraction of ethanol (0.05) and the density of the solution (0.997 g/cc), we can follow these steps: ### Step 1: Calculate the number of moles of ethanol and water Given the mole fraction of ethanol (X_ethanol) is 0.05, we can find the mole fraction of water (X_water): \[ X_{water} = 1 - X_{ethanol} = 1 - 0.05 = 0.95 ...
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Knowledge Check

  • In a solution of ethanol in water, the mole fraction of ethanol is 0.05 and the density of solution is 1.94 g mL^(-1) . The molarity of the solution is ___ M

    A
    9.8
    B
    5
    C
    4.7
    D
    2.5

  • 92 g. of ethanol is dissolved in 108g. Of water. The mole fraction of water in the solution is

    A
    0.25
    B
    0.75
    C
    0.5
    D
    0.35

  • Calculates the molarity and normality of a solution containing 0.5 g of NaOH dissolved in 500 ml . solution-

    A
    ` 0.0025 M,0.025 N `
    B
    ` 0.025 M,0.025 N `
    C
    ` 0.25 M, 0.25 N `
    D
    ` 0.025 M,0.0025 N `

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    Calculate the molarity of sulphuric acid solution in which mole fraction water is 0.85.

    Consider a solution of ethanol in water in which the mole fraction of ethnol is 0.040 . If the density of H_(2)O is taken to be 1 g//mL the molarity of ethanol in solution is

    What is the molarity of HCl in a solution prepared by dissolving 5.5 g HCl in 200g ethanol if the density of solution is 0.79g/mL?

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