I will have this experiment on next lab and want to be preparedfor it but don't know how to calculate
some things like molarity, initial and final temperature, changein temperature, heat of neutralization per mole and so on :(( .. Iwill be grateful for explaining to me how to solve each problemstep by step, so will be able to do it on my own later. Thankyou!!!!
page 60: and without piecing the bottom, record the temperatureof the HCL solution. Rinse the termometer and then record thetemperature of the NaOH solution in the Erlenmeyer glask. The twotemperatures must be within 2C before starting the experiment.Record the temperatures and take the acerage as the initialtemperature. Using a clean 50ml graduated cylinder, pour 25ml ofNaOH solution into the Styrofoam cup calorimeter... so on soon.....Record the the maximum temperature that was observed asfinal temperature. Determine the change in temperature,(triangle)T. Assuming that the density of the solution was 1,00g/ml and the final colume of the solution was 50,0ml, determine themass of the solution. Given that the specific heat of water is 4.18J/g C, calculate the (triangle)H for theneutralization reaction.Finally calculate the (triangle)T for the neutralization reactionper mole for H+ and OH- ions reacting.
Repeat the procedure for trail 2 and after trial 2 calculate theaverage (triangle)H for the neutralization reaction per mole ofH+ and OH- ions reacting.
The heat of neutralization will be determined in the reaction of HCl and NaOH. Obtain 54.0 mL of water in a 100 mL graduated cylinder and pour it into a 125 mL Erlenmeyer flask. Add 6.0 mL of 6.0 M HCl to the flask using a 10 mL graduated cylinder and swirl it until it is thoroughly mixed. Make sure to label the flask. Add 54 mL of water to a second labeled 125 mL Erlenmeyer flask. To this flask add 6.0 mL of 6.0 M NaOH using a 10 mL graduated cylinder. Again swirl the flask until the solution is thoroughly mixed. Calculate the molarity of the new HCl and NaOH solutions. Assemble a simple Styrofoam cup calorimeter using 2 Styrofoam cups. Place the nested cups into a 400 mL beaker for support. Add 25 mL of the freshly prepared HCl solution to the Styrofoam cup calorimeter. Carefully place the thermometer in the Styrofoam cup calorimeter
