Chemistry

A 63 gram block of an unknown metal at 88 degrees C was dropped into an insulated flask containing approx. 30 g of ice and 30 g of water at 0 degrees C. After the system had reached a steady temp. it was determined that 12.1 g of ice had melted. What is the specific heat of the metal?

Ok so I know that this problem involves the specific heat equation: q= mass x constant x change in temp. And I know that the heat of fusion of ice is 333 J/g. But I'm not sure of how to rearrange this equation or where to plug in the numbers.

If all the ice did not melt, there was no change in temperature.

Heat change= massicemelted*Heatfusionice



I guess I still don't really understand...

Bob Pursley is saying that a mixture of ice and water at zero degrees C will stay at that temperature until all of the ice is melted. If you had ice left after the experiment was performed, the final T of the ice/water mixture must still be zero degrees C. Thus the unknown metal melted ice (at 334 J/g) but it didn't raise the T of the mixture. (Therefore, you don't have a delta T)

Ok I see. But he said that heat change = the mass of the ice melted x the heat of fusion. Once I come up with this number, what would the next step be?

Do I have to rearrange the specific heat equation?

Ahh n/m ok I got it. :)

What answer did you obtain?

  1. 👍 0
  2. 👎 0
  3. 👁 128

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    A 108g piece of unknown metal is heated to 100 degrees C in boiling water. The heated sample of metal is then dropped into 50ml of H20, which is initially at 23.0 degrees C. After a few minutes the temp. of water raises to 37.5

    asked by Lesley on May 14, 2011
  2. Chemistry

    An unknown metal, heated to an unknown temperature until a liquid is dropped into a calorimeter that has 250 ml of water. The water heats up from 22 degrees Celcius to 29 degrees Celcius, at which point the temperature of the

    asked by Ivy on December 4, 2010
  3. Physics

    Find the specific heat of an unknown metal given this data: Mass of the metal = 120 g Temp of the metal = 220 degrees Mass of the water = 30 g Initial Temp of the water = 20 degrees Final Temp of the water = 85.6 degrees Specific

    asked by Anonymous on January 6, 2017
  4. Chemistry

    HELP PLEASE. I have no idea how to set this up. I tried using the q=mc(change in temp) equation but its not working out. A 59.8 g block of an unknown metal at 87.5 degrees Celsius was dropped into an insulated vesssel containing

    asked by Taylor on September 30, 2014
  5. Chemistry

    HELP!!! An unknown metal having a mass of 14.00g is dropped into 11.00mL of water at 20.0 degrees Celcius. The starting temperature of the chunk of metal is 100.0C. The final temperature of the water and metal is 32.5C. What is

    asked by Marie on April 6, 2011
  6. college Chemistry

    1. If 25 grams of Iron (III) hydroxide is dissolved in a 500mL volumetric flask, what is the Molarity of the solution? 2. An unknown metal has a volume of 5.25 mL and a density 2.71 g/mL. What is the weight of the metal in grams?

    asked by Ivy on December 4, 2010
  7. Chemistry-Dr.Bob

    An unknown piece of metal weighing 100. g is heated to 90.0 degrees Celcius. It is dropped into 250 g of water at 20.0 degrees Celcius. When equilibrium is reached, the temperature of both the water and piece of metal is 29.0

    asked by Sanaya on January 9, 2016
  8. Chemistry

    Block A of an unknown metal has a volume of 125cm^3 . Block B of a different metal has a volume of 145cm^3. If block A has a greater mass than block B, what can be said if the relative densities of two metal?

    asked by Quan on January 18, 2013
  9. Physics

    A 0.500kg block of metal with an initial temperature of 30 degrees C is dropped into a container holding 1.12kg of water at 20.0 degrees C. If the final temperature of the block-water system is 20.4 degrees C, what is the specific

    asked by Tammy on May 5, 2019
  10. western michigan university

    A 30 gram metal at 100 degrees Celsius was dropped into 132 grams of water at 25 degrees Celsius and the final temperature for the metal in water system was 29 degrees Celsius. Calculate the specific heat capacity of the metal if

    asked by lorena on December 6, 2012

More Similar Questions