The calorimeter is a large round silver cylinder with a smaller cylinder inside. It has 3 holes around the bottom edge of the larger chamber. The smaller chamber is held at the top by a metal rod the goes through both chambers. Below the small chamber, there is a cork with a needle sticking straight up from it (that is where you place the food to be tested). The small chamber has a thermometer in it which measures the temperature of the water if you were to use it. The top of the small chamber is covered by aluminum foil to preserve heat transfer. The thermometer is sticking out of the aluminum foil. The use of this device is easier than you’d think. First, measure and record the weight of the food sample using a triple beam balance. Then, fill the small chamber about halfway with water and measure the mass and initial temperature of the water. Next, impale the food sample on the needle. Next, light the food sample on fire, once it catches, immediately place the small chamber on top with the rod, above the flame. After the food sample has fully burned out, caref...
First, 100 mL of regular deionized water was measured using a 100 mL graduated cylinder. This water was then poured into the styrofoam cup that will be used to gather the hot water later. The water level was then marked using a pen on the inside of the cup. The water was then dumped out, and the cup was dried. Next, 100 mL of regular deionized water was measured using a 100 mL graduated cylinder, and the fish tank thermometer was placed in the water. Once the temperature was stabilizing in the graduated cylinder, the marked styrofoam cup was filled to the mark with hot water. Quickly, the temperature of the regular water was recorded immediately before it was poured into the styrofoam cup. The regular/hot water was mixed for a couple seconds, and the fish tank thermometer was then submerged into the water. After approximately 30 seconds, the temperature of the mixture leveled out, and was recorded. This was repeated three
Start with the hot water and first measure the temperature. Record it. 8. Then pour 40 ml into the beaker. You can measure how much water was used by looking at the meniscus.
The purpose of this lab was to calculate the specific heat of a metal cylinder
The procedure of the lab on day one was to get a ring stand and clamp, then put the substance in the test tube. Then put the test tube in the clamp and then get a Bunsen burner. After that put the Bunsen burner underneath the test tube to heat it. The procedure of the lab for day two was almost exactly the same, except the substances that were used were different. The
2. The crucible and cover were placed on the triangle, and they were heated until they turned red hot. Afterwards, they were removed from the fire with the tongs and placed on the wire gauze to cool for ten minutes. Then, the mass of the crucible and cover was measured and recorded in the data
The crucible and lid are heated at the beginning of the experiment before being weighed so that any moisture in the crucible is burned away.
At the beginning of the experiment the heat capacity of the calorimeter is measured. The heat capacity of the instrument is the amount of heat that it absorbs. As energy is released the value is negative and when it is absorbed
The thermometer’s original temperature before coming in contact with an outside object is represented by T. ∆T/∆t is the average temperature of the digital thermometer. represents the temperature of the heat flowing object. In this lab, the temperature of the air is represented by Tair=T. To= Thand is the temperature of the hand.
2. Put the test tube inside a beaker for support. Place the beaker on a balance pan. Set the readings on the balance to zero. Then measure 14.0g of KNO3 into the test tube.
Planning Firstly here is a list of equipment I used. Boiling tubes Weighing scales Knife Paper towels 100% solution 0% solution (distilled water) measuring beakers potato chips Cork borer. We planned to start our experiment by doing some preliminary work. We planned to set up our experiment in the following way.
By this I mean that we will set up the apparatus in a way that would give us a large temperature rise in a short amount of time, e.g. 2 or 3 minutes. Then the s Here is a diagram of how we set up the apparatus. To perform this experiment we needed. * Electric weighing scales * A measuring cylinder 5 spirit burners (1 for each fuel). * A copper calorimeter with a lid *
Quickly and carefully transfer the heated metal from the test tube to the water in the calorimeter.
In a 100ml beaker place 50mls of water, measure the temperature of the water and record this initial temperature onto a table. Set the timer and add one teaspoon of Ammonium Nitrate to the water, stir this continuously until the Ammonium Nitrate has dissolved.
The last part of experiment 5, was learning about specific gravity and temperature. Specific gravity does not have any units, it is unitless. When measuring for the temperature, we used a thermometer to calculate the Celsius of the water, 10% sodium chloride, and isopropyl alcohol. The specific gravity uses a hydrometer to measure the gravity of the liquids. Using the hydrometer, to figure out the measurements we have to look at it from top to bottom. The water for specific gravity was .998 while the temperature of it was 24