Specific Heat Lab

This picture is of the metal on the hot plate boiling. Taken by Evan Bell

Purpose: The purpose of this lab was, using specific heat, fine an unknown metal.
Background:  Since we had to fine specific heat in this lab I had to find out what exactly it was. I learned that specific heat is the heat necessary of a substance to to raise the heat of water one degree Celsius.







Data:
Temperature:                                         
Temp. of the water--20.3c
Temp. of water and metal--20.5c
Water boil and metal temp.--99.3c 
Metal in Styrofoam cup--26.0c
Cold water--21.0c

Masses:
Mass of Beaker--116.85g
Beaker and water--257.73g
Beaker water and metal--285.7g
Beaker water and metal(boiling)--@71.89g
Styrofoam cup--2.00g
Styrofoam and water--96.55g

We found all of the temperatures by placing a thermometer into the beaker or Styrofoam cup and waiting for the temperature to leave out.  We found most of the masses by finding the wiegh on  a triple beam. To find the mass of the water we took the mass of the beaker without water and subtracted it from the beaker with water.

Analysis: 

Calculations: 
   Specific heat equation--Q = m*c*∆T
water change
99.3 - 21.0=78.3c

heat water gained:                         
Q=(94.4)(4.184)(5)                    
 Q=1974.848c                              
specific heat: for metal
   Q   = c
  m(c) 
1974.848=.897
2022.954 
What I learned:  
I learned from this lab was how precise the measuring has to be. Several time we had redo a measurement  because we only wrote down one decimal point. 
Conclusion:
In conclusion I determiner that our unknown metal was aluminum.  The specific heat for aluminum is .897 and that is what our data concluded to answer.

Formula Equation Lab

                                   This is the chemical reaction:Aluminum + Sodium Hydroxide = Aluminum Hydroxide + Sodium

 Al +NaHO2= AlHO + Na

To do this reaction first we had to make the Sodium Hydroxide aqueous.  We dissolved the sodium chloride into water the added the aluminum( in the form of tin foil) and the reaction immediately.  The aluminum began to dissolve and it turned the solution a dark grey color. This was the the aluminum coming off the foil and bonding with the hydroxide. Because this is a single replacement reaction the Aluminum takes the place of the Sodium and forcing it the Sodium out and becoming a Hydroxide.  

This is a Picture of the reaction. The Aluminum has started to bond with the Hydroxide and has started to turn the solution a grey color.
This picture was taken my Emily Hunsinger

Chemical Formula

So in chemistry we are learning how to balance chemical equations and it is a fairly easy concept.  The purpose of balancing a equation is because due to the Law Of Conservation of matter that says matter cannot be created or destroyed each side of the equation must have the same number of each element, or it is not a reaction.