I need the calculations for this lab and the discussion like 3/4 of a page pleas
ID: 910270 • Letter: I
Question
I need the calculations for this lab and the discussion like 3/4 of a page please. It's due tmr and I've no idea how to do it. I was absent when the lab was demonstrated. And if possible concussion as well like I'm 4 sentences. Please include any kind possible error in the discussion. ThanksWeb version: http://www.ulm.edu/chemistry/courses/manuals/chem1009/session_09.pdf
Calorimetry, Heat of Reaction Specifie heat is an intensive property of a single phase (solid, liquid or gas) sample that describes how the temperature of the sample changes as it either absorbs or loses heat energy Specific heat is generally a function of temperature, but, to a good approximation, it can be treated as being constant for a single phase over a moderate temperature range. The table below lists the specific heats at25 C of liquid water and selected metal solids. The Zeroth Law of Thermodynamics states: "If two samples of matter, initially at different temperatures (TH and TC, respectively), are placed in thermal contact, heat will be lost by the hotter sample (TH) and gained by the cooler one (TC). This exchange of heat will take place until both samples achieve the same final temperature, TF, so that TH> TF> TC." The First Law of Thermodynamies states: "During heat exchange (or, as we shall see, during a chemical reaction), heat is neither created nor destroyed." Thus, heat lost equals heat gained, if the heat exchange can be sufficiently insulated from the surroundings so that not very much heat escapes to the surroundings. A vessel that provides adequate heat insulation from its surroundings, and in which temperature changes are measured in order to determine specific heats (or heats of chemical reactions) is called a calorimeter. A perfect calorimeter absorbs no heat from the solution that it contains, nor loses any heat to the surroundings. No calorimeter is perfect, however. A typical calorimeter used in freshman chemistry labs is made of two nested Styrofoam cups, and looks like the one shown belovw top 100 mL solution 200 nL beaker 2 toam cups If we place mmetal grams of a hot metal, at a Celsius temperature TH, into a nearly perfect calorimeter, along with mwater grams of water, at a lower Celsius temperature TC, then the metal and the water will thermally equilibrate at a final intermediate Celsius temperature, TF Since the heat lost by the metal is equal to the beat gained by the water within the calorimeter, the following equation holds (m is in the units g,T is in the units and sp ht is in the units J/g Eim metal)* (Tu-Tr) x (op ht metal) [(mwater) * (TF-TC) * (sp ht water)
Explanation / Answer
ANSWER:
Dear candidate the data you have sent shows that upto calculation of enthalpy by calorimetry. Since the data is very huge and vague as well we will show you how to calculate H in simple.
H = mass of sample X (Tf - Ti) X specific heat.
Tf = final temperature attained in calorimeter.
Ti = initial temperature
Specific heat is given in literature.