One teaspoon of salt and one teaspoon of baking soda were put in two separate transparent glasses of water and then the time of dissolving of each substance were calculated. The results showed that the baking soda dissolves better in water than the salt. My hypothesis proved to be correct. To improve this study I would use a type of salt
3. Delirium Tremens This most serious ethanol withdrawal syndrome typically begins 3–5 days after cessation of drinking and lasts for up to 72 hours. It is characterized by confusion, agitation, fever, sweating, tachycardia, hypertension, and hallucinations. Death may result from concomitant infection, pancreatitis, cardiovascular collapse, or trauma. Treatment consists of diazepam, 10–20 mg intravenously, repeated every 5 minutes as needed until the patient is calm, and correction of fluid and electrolyte abnormalities and hypoglycemia.
Soon, the dark red changes into black and then eventually lighter and lighter becomes colorless. The colorless solution is an indication that the reaction is complete. After adding 2mL of water, a “cloudy” precipitate forms but it wasn’t clear enough. Therefore, another 5mL of deionizer water wash added. After swirling for 1 minute more precipitate was formed.
Using a test tube holder, heat the R tube over the Bunsen burner, moving the tube in a circular motion until all the water has evaporated. The P tube will be carefully heated next, for about 10 minutes, until all the water has evaporated, and there is a white substance in the tube. After the water has evaporated, continue heating the tube over the burner for a minute longer, being careful to watch out for purple gas and yellow spots. The P tube
ADH aids the reabsorption of You correctly answered: a. water. 03/31/14 page 1 Experiment Results Predict Question: Predict Question: What will happen to the urine volume and concentration as the solute gradient in the interstitial space is increased? Your answer : c. The urine volume and concentration will increase. Stop & Think Questions: Why is the solute concentration (mOsm) in the proximal tubule the same as in the blood? You correctly answered: d. Because water and many plasma solutes filter into Bowman's capsule.
First I made a water bath by filling the 100 mL beaker with cool tap water. I then placed crushed ice in the 100 mL beaker so the water level was just below the top of the beaker. I sprinkled a little salt in the ice water and mixed it well. I then filled the test tube half full with distilled water and set the test tube in the 24 well plate. I inserted the digital thermometer into the test tube and took reading every 30 seconds until the readings remained constant.
If we used a stick resistant material for this step, the whole 1g would be accounted for. Also, when we poured the contents of the test tube into the 100mL beaker, not all of the solution exited. We should have tried harder to take out the entire content of the test
Caffeine & Alcohol Effect on the Water Flea Heart Rate Abstract In this study, water fleas (Daphnia magna), a semi-transparent freshwater crustacean, are used to study the effects of caffeine and alcohol on heart rate. There was a control group used along with the alcohol and caffeine to ensure the results were more accurate. The prediction was the introduction of alcohol and each increased concentration of alcohol, would decrease heart rate and the introduction and subsequent increased concentrations of caffeine would increase heart rate. The results of this experiment proved the prediction to be correct with the alcohol, but the results from the caffeine were hardly noticeable. Methods & Materials
Care must be taken when squeezing the pipet bulb on the filter pipet. Too much pressure might cause the filter to leak or fall off. Add about 2 mL of fresh tert-butyl methyl ether to the solid in the RB flask, warm briefly, let the solids settle for a minute, and pipet the liquid to the centrifuge tube as before. Again allow the solids to settle briefly in the centrifuge tube, then filter the liquid through the pressure filtration apparatus, into the same 25 mL Erlenmeyer flask. Doing a rinse such as this helps to ensure that any trimyristin that was left behind in the RB flask and centrifuge tube is not lost, thereby helping to ensure that
The sodium in the drink helps maintain body fluids unlike other fluids such as water and caffeinated beverages that can promote water loss through increased urination. f. Provides carbohydrates to working muscles iv. Carbohydrates are in two forms: sucrose and glucose-fructose 1. Allows to work harder and longer and feel better g. Encourages you to drink more v. Sodium and glucose in Gatorade stimulate fluid consumption in the body which encourages your body to drink until it is rehydrated 3. When a sport drink is needed h. An individual will burn 200-500 calories during a standard workout that is 30 minutes long.