1. Questions

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. 👍
  2. 👎
  3. 👁
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.

    1. 👍
    2. 👎
    👤
    bobpursley

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

    1. 👍
    2. 👎
    Maryo

  4. (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. 👍
    2. 👎
    Anonymous

  5. i guess the correct answer is 9.3 kg. but i don't know how to get this answer?

    1. 👍
    2. 👎
    Leonard

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chem

    What is the amount of energy of calories to heat 8.5g of water from 15 C to 36 C? I think you take 8.5g x 21 degree C, but then I am stuck. Thank you

  2. physics

    A 68 g ice cube at −23◦C is dropped into a container of water at 0◦ C. How much water freezes onto the ice? The specific heat of ice is 0.5 cal/g ·◦ C and its heat of fusion of is 80 cal/g. Answer in units of g.

  3. Science

    When 1 gram of liquid water at 0 degrees Celsius freezes to form ice, how many total calories of heat are lost by the water and how do you know? a. 1 b. 0.5 c. 80 d. 540

  4. physics

    An insulated beaker contains 300g of water initially at 30 degree celsius. water at 100 degree celsius is added until the temperature of mixture reaches 50 degree celsius . the specific heat capacity of water is 4.2J/(kg degree

  1. physics

    steam at 100 degree C is passed into a container of negligible heat capacity containing 20 g of ice and 100 g of water at 0 degree C, until the ice is completely melted. Determine the total mass of water in the container. (

  2. Chemistry

    How many grams of ethanol must be added to 500.0 g of water to make a solution that freezes at 0.00 degrees fahrenheit? The molal freezing point depression constant for water is 1.86 degree celsius over moles.

  3. Chemistry

    For a 8.88 gram sample of ice at -43.6°C , what is the minimum amount of heat (in kJ) needed to convert the sample to liquid water at 0.00°C? Physical data for water: specific heat (ice) = 2.10 J/g°C specific heat (water) =

  4. 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

  1. Chemistry

    which of the following quantities is not required to calculate the amount of heat energy required to heat water from 25^OC to 55^OC? A-the mass of water sample. B-the initial temp. C-the heat of vaporization for water. D-the final

  2. chemistry

    Use the heat of fusion of water, 79.7 cal/g. to answer the following question. How much energy in calories is released when 30.0g of water freezes?

  3. Chemistry

    A quantity of ice at 0.0 degrees C was added to 33.6 of water at 21.0 degree C to give water at 0.0 degrees C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(g * degrees C) q =

  4. Chemistry

    Suppose that 100.0 g of ice a 0 degreesC are added to 300.0 g of water at 25.0 degrees . Is this sufficient ice to lower the temperature of water to 5.00 degrees C and still have ice remaining? Calculate the energy (heat) which

You can view more similar questions or ask a new question.