chemistry

How much energy is released when 2.55kg of diethyl ether freezes?

  1. 👍 0
  2. 👎 0
  3. 👁 428
asked by janny
  1. You need the latent heat of fusion. You may have been given it with the question.

    http://en.wikipedia.org/wiki/Diethyl_ether_(data_page)

    has 7.19 kJ mol-1

    so calculate the number of moles of diethyl ether relative molecular mass = 74.14

    then multiply the number of moles by the latent heat of fusion.

    1. 👍 0
    2. 👎 0
    posted by Dr Russ
  2. 533.0666 kj

    1. 👍 0
    2. 👎 0
    posted by dave
  3. How much energy is released when 1.9 kg of diethyl ether freezes? In kj

    1. 👍 0
    2. 👎 0
    posted by Jena

Respond to this Question

First Name

Your Response

Similar Questions

  1. organic

    what is the best synthesis of 2-heptanol CH3CH2CH2MgBr(2 moles)+formaldehyde in diethyl ether followed by H3O+ CH3CH2CH2MgBr+butanal in diethyl ether followed by H3O+ CH3CH2CH2CH2MgBr+acetone in diethyl ether followed by H3O+

    asked by Jake on November 20, 2008
  2. organic

    what is the best synthesis of 4-heptanol (CH3CH2CH2)2CHOH CH3CH2CH2MgBr (2 moles)+formaldehyde (CH2=O) in diethyl ether followed by H3O+ (CH3CH2CH2)2ChMgBr+formaldehyde (CH2=O) in diethyl ether followed by H3O+

    asked by Jake on November 20, 2008
  3. Chemistry(Please help)

    The common laboratory solvent diethyl ether (ether) is often used to purify substances dissolved in it. The vapor pressure of diethyl ether , CH3CH2OCH2CH3, is 463.57 mm Hg at 25oC. In a laboratory experiment, students synthesized

    asked by Hannah on February 19, 2012
  4. Chemistry

    Diethyl ether is a volatile organic compound. the vapor pressure of diethyl ether is 401 mm Hg at 18 degrees celsius and the change in H vapor = 26.0 kJ/mol. Calculate the vappor pressure of diethyl ether at 25 degrees C.

    asked by Ania on November 6, 2012
  5. Chemistry

    The boiling point of diethyl ether CH3CH2OCH2CH3 is 34.500C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in diethyl ether is cholesterol . How many grams of cholesterol, C27H46O (386.6 g/mol), must be dissolved in

    asked by Charlotte on October 5, 2014
  6. chemistry

    The boiling point of diethyl ether CH3CH2OCH2CH3 is 34.500C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in diethyl ether is cholesterol . How many grams of cholesterol, C27H46O (386.6 g/mol), must be dissolved in

    asked by allie on January 31, 2010
  7. chemistry

    The boiling point of diethyl ether, CH3CH2OCH2CH3, is 34.500 °C at 1 atmosphere. Kb(diethyl ether) = 2.02 °C/m In a laboratory experiment, students synthesized a new compound and found that when 13.85 grams of the compound were

    asked by JC on May 14, 2015
  8. Chemistry

    A flask contains 25.0 mL of diethyl ether weighth 18.74 µg (micrograms). What is the density of the diethyl ether and grams per liter? I'm not sure how to set this problem up correctly.

    asked by Sara on May 1, 2015
  9. organic chemistry

    suppose solute A has a partition coefficient of 4.0 between diethyl ether and water. Demonstrate that if 100mL of solution of 5.0g of A in water were extracted with two 25mL portion of diethyl ether, a smaller amount of A would

    asked by Krystal on February 24, 2011
  10. Chemistry

    A flask contains 25.0 mL of diethyl ether weighth 18.74 µg (micrograms). What is the density of the diethyl ether and grams per liter?

    asked by Sara on May 1, 2015

More Similar Questions