Alka Seltzer Dissolving at Different Temperatures Essay

2. Place a large“+” on the end of the gel diagram where the positive electrode would go. Place a large

Step 3: Use the thermometer to identify and record the temperature for room temperature, in your refrigerator, in your freezer, and then research the temperature of boiling water (do not take this temperature) and record them in Table 2.

Put 1 cup of cold water in one cup and 1 cup warm water in the other cup

o Set up apparatus as shown, making sure that the meter stick is placed vertical near the edge of the sand tub and. It should also be level with the sand.

The purpose of this experiment was to mix Alka-Seltzer with Hydrochloric acid in order to analyze Sodium Bicarbonate as an active ingredient in the Alka-Seltzer. The mixture will contain hydrochloric acid to only see the composition of Sodium Bicarbonate in the tablet once it reacts. The amount that reacted allowed us to determine how much of it is present in the tablet. The amount of sodium bicarbonate will be measure by using the ideal gas law PV=nRT. The experiment will be conducted in the lab, therefore we are going to use room temperature which ranges from 15 to 26 degrees celsius. At room temperature pressure ranges from 12.8 to 25.0 millimeters mercury according to its corresponding room temperature.In the ideal gas equation R is 0.08206latm/mol k which is a constant. Once we have those values we can calculates the number of moles that reacted in the mixture by solving for the missing value. With the number of moles we are able to find the mass in grams which is what will potentially tell us the composition of Sodium Bicarbonate in a tablet of Alka-Seltzer.

After the 5-minute period, take the Elodea and thermometer out of the beaker, pour the mixture into the beaker down the drain and rinse.

The leveling bulb must be leveled with the amount of water in the buret at all times. Timing should begin after 2 ml of oxygen has been produced and must be recorded at 2 ml intervals until 14 ml of oxygen has accumulated. After recording the time, the first part of the experiment is now complete.

5.Position gas collecting hose so it runs from reaction vessel through gas collecting box to opening of the graduated cylinder. The idea is that any gas coming through the tube will rise in the graduated cylinder and displace the water in it.

The problem in our society is that we have become more technologically advanced. Although we might have a problem in our society we also have in our sales on Alka Seltzer. Which the problem is Alka Seltzer Original sales went down 12% in fiscal year 2012. Alka Seltzer has put a proposal that they would like to increase the versatility of Alka Seltzer the ones who are career oriented consumers by promoting the Alka Seltzers to be used everyday. Alka Seltzer "is marketed for relief of minor aches, pain, inflammation, fever, headache, heartburn, stomachache, indigestion, hangovers, while neutralizing excess stomach acid". ( Alka Seltzer) . Alka Seltzer was launched in 1931.

Dispense .5 mL water into the already weighed conical vial, replace cap and face insert on its down side.

Set up apparatus as shown in figure 1 above, ensuring the beam is fixed at both ends

Place the semi-circular container full of water under the horizontal line. Flat side lined up with the horizontal line.

Submerge the graduated cylinder in the plastic tub so that it is completely filled with water. Hold the open end of the graduated cylinder and move it vertically upside-down where the open end of the graduated cylinder is still submerged in the plastic tub. Clamp the graduated cylinder the ring stand of the lab table to keep it in place. perforate a hole in the top of the rubber cork for the solution container. Cut a straw the length of about four inches. place the straw inside of the rubber cork hole. Set up your timer for two minutes.

For this experiment, we are going to determine the effect of temperature on solubility, to be done in a chemical by dissolving a solute in a definite amount of solution which is saturated. Specifically, the goal of this experiment is to prepare a saturated solution of Na2C2O4 in water at different temperatures, determine the effect of temperature in solubility, and to apply Le Chatelier's Principle. We can do all this by simply titrating a certain amount of standard KMnO4, and measuring how much KMnO4 was needed to help Na2C2O4 reach chemical equilibrium at certain temperatures. In doing this, we will have fulfilled all the goals of our experiment, as well as being able to determine the Solubility of Na2C2O3 at both 20 and

Squeeze the drip chamber to fill half full. Open the clamp on the piggyback tubing, allowing the solution to prime the tubing. Connect the piggyback unit to the primary tubing. Insert the needle into the injection port of the primary tubing. Secure the connection with tape. Hang the piggyback unit on the IV pole, ensuring that the piggyback unit is at least 6 inches higher than the primary container. Ensure patency of the primary IV. Begin the secondary piggyback infusion. Adjust the roller clamp on the piggyback tubing to regulate the flow rate of the piggyback solution. After label the piggyback infusion tubing with the time and date the medication was initiated.