Need help with the following lab questions please.  Please be sure...

Need help with the following lab questions please.  Please be sure to answer all parts of each question. 

2. Using the heat capacity value that you determined in part II of the lab (attached) , what is the most probably identity of the metal that you examined? Please explain your reasoning in complete sentences.

3. Based on your answer in question 2, determine the percent error of your calculated specific heat capacity value of your unknown metal using the specific heat capacities of known metals below.

Percent Error = experimental value – actual value x 100

                                          actual value

Metal Specific	Heat Capacity
Nickel	0.440
Tin	0.210
Silver	0.237
Magnesium	0.140
Calcium	0.650
Mercury	0.140

Metal you examined:

• Experimental specific heat capacity:
• Metal identity:
• Known specific heat capacity value:
• Percent error (Show ALL work):

Part II Data and Observations:
Initial temperature of hot metal: 100 °C
Volume of water in calorimeter: 24 ml
Initial temperature of water in
calorimeter:
25 °C
Unknown Letter (A, B, or C): A
Mass of metal: 25.605
Final Temperature in calorimeter: 29.1 °C
Part II Calculations:
1. Calculate the energy change (q) of the surroundings (water). We can assume that the specific
heat capacity of water is 4.18 J/ (g · °C), and the density of water is 1.00 g/mL.
q = m × c × Δt (Use values for water)
m = 24 ml
c=4.18
Δt = 29.1 – 25 = 4.1
24 * 4.18 *4.1 = 411.31 joules
2. Calculate the specific heat of the metal.
q surroundings = - q system
q = m × c × Δt
c = q
metal
/ (mass
metal
* temp change of metal)
c=Q/m*temp change
Q=411 joules
m=25.61g
Δt =100-29.1=70.1
c=411/(25.61 *70.1)
c=411/1697
c=0.242 J kg -1o C