Chemistry

A 459.1-g sample of an element at 187°C is dropped into an ice–water mixture; 102.5 g of ice melts and an ice–water mixture remains. Calculate the specific heat of the element. ΔHfusion = 6.02 kJ/mol (for liquid water at 0°C).

  1. 👍 0
  2. 👎 0
  3. 👁 263
  1. heat lost by metal is
    mass metal x specific heat x (Tfinal-Tinitial). Tf = 0; Ti = 187

    heat gained by ice is
    mass ice x heat fusion. I used 333.5 J/g for heat fusion

    Put those together.

    (mass metal x specific heat metal x (Tf-Ti) - (mass ice x heat fusion ice) = 0

    Solve for specific heat metal. Something like 0.4 or so I think. That's an estimate.

    1. 👍 0
    2. 👎 0
  2. I added those together but put a - sign. Arrrgh!. The following corrects that.
    (mass metal x specific heat metal x (Tf-Ti) + (mass ice x heat fusion ice) = 0

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    Dry saturated steam at 100 degree C is passed into 250 gm of a mixture of ice and water contained in a calorimeter of thermal capacity 45J/K.When all the ice has just melted,the mass of the content has increased by 10 gm due to

    asked by AFOLABI .O. on March 15, 2012
  2. Physics

    Dry saturated steam at 100'C is passed into 250gm of a mixture of ice and water contained in a calorimeter of thermal capacity 45J/K.When all the ice has just melted,the mass of the content of the calorimeter has increased by 10gm

    asked by O.E Olaleye on March 11, 2012
  3. Physics

    25) A 75-g ice cube at 0 C is placed in 825g of water at 25 C. a) What is the final temperature of the mixture? b) If the final temperature is 0 C, then how much ice remains? c) change the ice's mass to 300g, and repeat the

    asked by Y0gi on November 30, 2010
  4. Chemistry

    A 5.00-g sample of aluminum pellets (specific heat capacity = 0.89 J/°C · g) and a 10.00-g sample of iron pellets (specific heat capacity = 0.45 J/°C · g) are heated to 100.0°C. The mixture of hot iron and aluminum is then

    asked by Bill on November 13, 2011
  5. Physics

    The question is: "A block of ice at 0oC is dropped from a height that causes it to completely melt upon impact. Assume that there is no air resistance and that all the energy goes into melting the ice. Show that the height

    asked by Ceres on September 23, 2009
  1. Physics

    Suppose 100 g of water at 20°C is poured over a 70-g cube of ice with a temperature of -8°C. If all the ice melts, what is the final temperature of the water? If all of the ice does not melt, how much ice remains when the

    asked by James on July 19, 2012
  2. Chemistry

    A sample of hydrogen gas (H2) is produced in a laboratory by displacement of water. A 645 mL sample of hydrogen is collected at 25 degrees Celsius and a total pressure of 758 torr. Collecting gas by water displacement causes the

    asked by Roger on May 20, 2016
  3. physics

    Given: latent heat of fusion of water 3.33x10^5 J/kg. A 147 g cube of ice at 0 degress C is dropped into 1.3 kg of water that was originally at 79 degrees C. What is the final temperature of the water after the ice melts.

    asked by Ericka on December 8, 2009
  4. Chemistry

    A 50.0- piece of ice at 0.0 is added to a sample of water at 8.0. All of the ice melts and the temperature of the water decreases to 0.0. How many kilograms of water were in the sample?

    asked by Cassie on May 25, 2011
  5. physics

    500g of water at 40 deg C and 200g of a mixture of ice and water are combined. The final temperature is 10 deg C. How much of the original 200g mixture was ice?

    asked by shan on February 23, 2008
  6. 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.

    asked by Reese on April 4, 2019

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