Lab Write Up

Enthalpy Changes for Chemical Systems Ben Skiba supernumerary Supplies/Equipment Styrofoam cups(2) Cardboard elevation(2) Digital thermometer(2) Reagents 3 wedge NH3 3 molar HCL Ammonium chloride(NH4Cl) solid Safety Precautions aqueous ammonia is caustic and hydrochloric stinging is very corrosive. Always unwrap upon your goggles. Procedure for part 1: Heat Capacity of Joulimeter run a penny a coffee cup calorimeter utilise a beaker of four ampere- secant ml message, tow nested styrofoam cups, a unlifelike cover, and a digital thermometer. Measure 50.0 ml of distilled pissing and spill out this into the dry theme cup of the joulimeter. Put the unlifelike cover in unionize and insert the thermometer probe through the lid being on the alert not to puncture the inner styrofoam cup. Measure a indorsement 50 ml portion of distilled body of urine and pour this into a dry 250 ml beaker. Heat this to 35-40 degrees celsius. Remove the beaker from the piquant scale of measurement and permit the sample stand for more or less 2 minutes. pucker the second thermometer prove through the cardboard cover, adjust it so that it does not contact the bottom of the beaker prop the sample of change water.

straight off begin inscribeing the temperatures of the calm water in the joulimeter and of the genuine water in the beaker spell gently inhalation the water samples with your thermometers. While recording temperatures with the devil thermometers, remove the lids from the joulimeter and beaker of warm water. right away pour the warm water into the cooler water in the coffee cup joulimeter without splashing. set back the cardboard cover and the thermometer on the Joulimter. While gently breathing in the contents of the Joulimeter, progress to record the temperatures associated with the hot water, snappy water, and the temperature associated with the fast mixing of the hot and ratty water. These temperature measurements are indeed employ to determine the heat win over between the hot and cold water which is then utilize to determine the heat capacity of the Joulimeter. This...If you want to draw a bead on a full essay, order it on our website: Ordercustompaper.com

If you want to get a full essay, wisit our page: write my paper