Question

Assignment Score: 65.7% Resources Give Up? Mint Check Answer Question 31 of 35 > 150 An irregular lump of an unknown metal has a measured density of 5.27 /mL. The metal is heated to a mor e and placed in a graduated cylinder filled with 25.0 mL of water at 25.0 "C. After the system has reached thermal the volume in the cylinder is read al 34.3 ml, and the temperature is recorded as 37.3 °C. What is the societat unimown metal sample? Assume no heat is lost to the surroundings.

Answer 1

The initial volume of water = 25ml

final volume of water      = 34.3ml

The volume of metal = final volume of water -The initial volume of water

                              = 34.3-25   = 9.3ml

The density of metal = 5.27g/ml

mass of metal   = volume of metal * density

                         = 9.3*5.27   = 49.011g

mass of water = volume of water * density

                       = 25*1 = 25g

Heat lose of metal        =   Heat gain of water

mc$\Delta$T                       =    mc$\Delta$T

49.011*c*(153-37.3)      =   25*4.184*(37.3-25)

c   = 0.23J/g-0C

The specific heat of unknown metal = 0.23J/g-0C>>>>answer