ipl-logo

Advantages And Disadvantages Of Hand Warmers

974 Words4 Pages

During the cooler seasons, Virginia gets very cold and thus, the people living in Virginia also get cold. The colder temperatures, not only in Virginia, are the reason for the existence of hand warmers. The experiment conducted was perused for the sole reason of saving money on these said hand warmers. If having more sodium acetate in the hand warmer lasts longer with the highest temperatures than having less sodium acetate, then one would simply buys the bigger hand warmer. After making sodium acetate, the liquid was placed into pouches, which would go on to be tested for their temperatures over a certain period of time. The pouches would be activated and placed into cups of water and the temperatures of the water would be recorded at intervals. …show more content…

The reusable hand warmer is a pouch filled with a sodium acetate solution that uses exothermic crystallization to warm up. Exothermic crystallization means that, when activated, the hand warmer will radiate heat by the process of crystallization. To activate the process, the pouch has an inverted metal disk floating around within the solution and when pressed or “clicked”, the process initiates (Brain, …show more content…

The formula for sodium acetate is NaC2H3O2, it is quite soluble in water, soluble in ether and slightly soluble in ethyl alcohol. While the chemical compound melts at 622.8℉, it does not have a boiling point for it will decompose. A hydrate is a chemical compound that forms when one or more water molecules are added to the molecules of another substance. Since sodium acetate is a trihydrate (NaC2H3O2·3H2O), it has three molecules of water for every molecule of sodium acetate and because of this, anhydrous sodium acetate quickly transitions into a trihydrate. This is due to sodium acetate being quite hygroscopic, meaning it readily absorbs moisture from the air. Sodium acetate is made by reacting either sodium hydroxide - NaOH / Caustic Soda - or sodium carbonate - Na2CO3 / Soda Ash (which can be replaced with sodium bicarbonate/ NaHCO3/ Baking Soda) - with acetic acid - HC2H3O2 / Vinegar. When it does form, sodium acetate establishes as a trihydrate but can be turned anhydrous by boiling and evaporating the reacting solution (Schlager,

Show More
Related

Procion Red Dye Lab Report

1454 Words | 6 Pages

A hot plate was placed under the ring stand. 50 mL of 3.0 M NaOH in a 250 mL beaker and a stir bar was placed in the beaker. The beaker with NaOH was placed on the hot plate and 3.75 grams of NaAlO2*5H2O was placed in the beaker. The temperature probe was placed in the beaker with the solution, not touching the bottom of the beaker. The solution was heated and stirred till the solution dissolved.

Read More

Cough Drop In Water Temperature Lab Report

165 Words | 1 Pages

Temperature: In this experiment, we will examine how the temperature affects the decomposition rate of a cough drop in water. There will be 3 different temperatures (cold, warm and hot) and all of the three experiment will be performed at the same time. Equipment: 3x Hot plates 3x Magnetic stirrers 3x 150 mL beakers 3x Cough drops 3x

Read More

Hand Warm Lab Report

289 Words | 2 Pages

After seeing this data the two most effective look chemical at resisting energy was CaCl2 and LiCl. So we looked at the price of both of this chemical CaCl2 cost 6.55$ per 500g and LiCl cost 32.75$ per 500g because CaCl2 was substantially cheaper we decide to chose it to use in own hand warmer. We calculated that it would take 22g of CaCl2 to create a 20oC increase in temperature of 100ml of water. Some sources of error in this lab, would be heat escape from not be able to replace the lid of the calorement went adding chemical into it, inaccuracies in the balance, and not waiting of the proper time to recode the

Read More

Alka Seltzer Research Paper

79 Words | 1 Pages

Alka-Seltzer is a medical drug that works as a pain reliever and an antacid. The pain reliever used is aspirin and the antacid used is baking soda. When sodium bicarbonate dissolves in water it splits apart into sodium and bicarbonate ions. The bicarbonates reacts with hydrogen ions from citric acid to form carbon dioxide gas and water. This is how the bubbles are made.

Read More

How Fast Does Alka Seltzer Make Gas

621 Words | 3 Pages

To accurately determine this, each trial will have recorded dependent and independent variables, constants and a control. The hypothesis being researched, indicates higher temperatures allow for a rapid rate of dissolution. In this particular case with someone needing Alka Seltzer, they will feel better faster if they use hot water to dissolve the medicine before

Read More

Alka-Seltzer Experiment

853 Words | 4 Pages

In the second portion of this experiment we will keep the temperature constant and divide the ½ tablet of Alka- Seltzer into 2 pieces ,3 pieces and an unbroken ½ tablet. It is my belief that Alka-Seltzer

Read More

Chemical Equation For The Presence Of Sodium Bicarbonate

795 Words | 4 Pages

If I had a household product labeled sodium bicarbonate, I would add an acidic substance and expect bubble to be created. As we know acid reacts with bubbles when combined with sodium bicarbonate. 2. Write the chemical equation for the reaction in well A6. B BoldI ItalicsU Underline Bulleted list Numbered list Superscript Subscript3 Words NaOh + AgNO3>>>>NaNO3 + AgOH 3.

Read More

The Effect Of Temperature On The Bounce Of A Tennis Ball

316 Words | 2 Pages

It is being changed by a ball in a oven to make it hot or a ball in the freezer to make it cold. Temperature can be measured by

Read More

Cellular Respiration In Yeast Lab Report

780 Words | 4 Pages

Place the the beaker onto a hot plate that is on a low heat setting (about setting 3). Every 5 minutes for 20 minutes, measure the circumference of the balloon and record it in Data Table A. You can measure the circumference of the balloon by looping a piece of string around it then using a ruler to measure the string’s length. Record the data in the data

Read More

Calorimetry Lab Report

747 Words | 3 Pages

Materials 1 calibrated thermometer, 1 scale that reads mass, 2 Styrofoam cups, 1 small lead sinker, boiling water in a beaker, 1 pair of kitchen tongs, 1 small cooking pot, stove top, distilled water, and 1 pair of safety goggles (I did not use a cork stopper). III. Procedure First, the beaker

Read More

Effect Of Temperature On Amylase

1167 Words | 5 Pages

Research question What is the effect of temperature Amylase activity? Word count-1453 Background research Enzymes are biological catalysts that speed up a chemical reactions. They do this by decreasing the activation energy(the energy needed to start the reaction) of a chemical reaction. The enzyme present in our saliva is called Amylase. Amylase increases the rate of reaction by decreasing the activation energy needed to hydrolyse the starch molecules.

Read More

Water Hydration Lab Report

603 Words | 3 Pages

Introduction: In this lab, of water in a hydrate, or a substance whose crystalline structure is bound to water molecules by weak bonds, is determined by heating up a small sample of it. By heating, the water of hydration, or bound water, is removed, leaving only what is called an anhydrous compound. Based on the percent water in the hydrate, it can be classified as one of three types: BaCl2O ⋅ 2H20, with a percent water of about 14.57%, CuSO4

Read More

The Importance Of Heat Therapy

1039 Words | 5 Pages

Most of the time, the choice of which method to use is a function of what individuals feel will provide the best results. If the affected body part does not experience an increase in temperature and the swelling is minimal, a person can continue to use heat therapy regularly to reduce the inflammation and pain in that part of the body. Patients who have rheumatoid arthritis or osteoarthritis are usually more predisposed to heat treatment as ice packs or cold create highly unfavorable sensations and may even worsen their symptoms. As for the cold treatment, it works best for areas where there is constant inflammation of the body part or bleeding.

Read More

Distillation Lab Report

1300 Words | 6 Pages

II. METHODOLOGY In order to perform this experiment, the students will need a distillation set-up with a connector receiver, an iron ring and stand, a Bunsen burner, a wire gauze, a 250mL round bottom flask, a graduated cylinder, a thermometer, one or two boiling chips, an alcoholic beverage, masking tape, an ice bath, a stirring rod, and, optionally, food coloring. It is imporatnt to avoid playing with the apparatus and equipment so as to avoid breakage and injuries, especially since fire is being dealt with in this experiment.

Read More

Sodium Thiosulfate And Hydrochloric Acid Lab Report

3578 Words | 15 Pages

Aim: To find out the relationship between the greater concentration of sodium thiosulfate when mixed with hydrochloric acid and the time it takes for the reaction (the time it takes for the solution to turn cloudy) to take place and to show the effect on the rate of reaction when the concentration of one of the reactants change. Introduction: The theory of this experiment is that sodium thiosulfate and hydrochloric acid reach together to produce sulfur as one of its products. Sulfur is a yellow precipitate so, the solution will turn to yellow color while the reaction is occurring and it will continue until it will slowly turn completely opaque. The reaction of the experiment happens with this formula: “Na2 S2 O3 + HCL =

Read More

More about Advantages And Disadvantages Of Hand Warmers

Related Topics

Open Document