physics

Suppose the amount of heat removed when 3.0kg of water freezes at 0 degree C were removed from ethyl alcohol and its freezing/melting point of -114 degree C. How many kilograms of ethyl alcohol would freeze?

PLEASE GIVE ME SOME HINTS!!!THANKS A LOT!!!!

  1. 👍 0
  2. 👎 0
  3. 👁 722
asked by Helen
  1. Look up the heat of fusion of ethanol.


    Heat in water freezing= masswater*Hfwater

    Heat in alchol freezing=massalcohol*Hfalc

    set the equal, and solve for mass of alcohol.

  2. Am i Correct The correct answer is 9.3 kg ?

    1. 👍 0
    2. 👎 0
    posted by Maryo
  3. (m_(water ) 〖Lf〗_water)/〖Lf〗_alcohol =m_alcohol
    (3.0×(33.5×〖10〗^4 ))/((10.8×〖10〗^4 ) )=m_alcohol=9.3kg

    Maryo you are right! :)

    1. 👍 0
    2. 👎 0
  4. i guess the correct answer is 9.3 kg. but i don't know how to get this answer?

    1. 👍 0
    2. 👎 0
    posted by Leonard

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    2.0kg of water at 0 degree celsius is to be changed into ice at this temperature. The same mass of water now at 100 degree celsius is to be changed into steam at this temperature. specific latent heat of fusion of water= 3.34

    asked by Anonymous on February 26, 2018
  2. Physics

    Suppose that the amount of heat removed when 2.9 kg of water freezes at 0.0 oC were removed from ethyl alcohol at its freezing/melting point of -114.4 oC. How many kilograms of ethyl alcohol would freeze? I don't know where to

    asked by Cindy on February 2, 2015
  3. College Chemistry

    Using the values for the heat of fusion, specific heat of water, or heat of vaporization, calculate the amount of heat energy in each of the following: * calories removed to condense 125g of steam at 100 degree C to cool the

    asked by Kell on September 16, 2010
  4. Physics

    A 0.260-kg piece of aluminum that has a temperature of -165 °C is added to 1.4 kg of water that has a temperature of 3.0 °C. At equilibrium the temperature is 0 °C. Ignoring the container and assuming that the heat exchanged

    asked by Sara on November 17, 2006
  5. physics

    In lab, Will burns a 0.6 g peanut beneath 48 g of water, which increases in temperature from 22 degree C to 55 degree C. The amount of heat absorbed by the water can be found with the equation Q =cm \Delta T, where Q is the amount

    asked by christy on March 31, 2012
  6. Chemistry

    What amount of energy is required to melt a 27.4 g piece of ice at 0oC? The heat of fusion of ice = 333 Jg-1 Heat required to melt the ice 9.12e3 = J What amount of energy must be removed from 123 g of water to cool it from 71.6oC

    asked by Jill on October 2, 2014
  7. Chemistry HEAT OF FUSION

    What amount of energy is required to melt a 26.9 g piece of ice at 0oC? The heat of fusion of ice = 333 Jg-1 Heat required to melt the ice = J What amount of energy must be removed from 120 g of water to cool it from 72.1oC to

    asked by tanner on October 6, 2011
  8. physics

    In lab, Will burns a 0.6 g peanut beneath 48 g of water, which increases in temperature from 22 degree C to 55 degree C. The amount of heat absorbed by the water can be found with the equation Q =cm \Delta T, where Q is the amount

    asked by christy on April 3, 2012
  9. Physics

    In an electric freezer, 400.0 g of water at 18.0 degree C is cooled, frozen, and the ice is chilled to -5.00 degree C. How much total heat was removed from the water

    asked by Aaron on August 24, 2017
  10. science

    When you freeze water, 80 calories of heat are released into the surroundings for every gram of water that freezes. This is known as the "latent heat of fusion" of water, which is 80 cal/g. Heat of fusion is a characteristic

    asked by Elizabeth on January 31, 2011

More Similar Questions