Hydrobromic acid

research question for the Alka Seltzer Lab is, “What is the effect of different surface areas of an Alka Seltzer tablets reaction time?’. Inside of an Alka Seltzer tablet there are two key ingredients; which are citric acid and baking soda. When a tablet is dropped into a liquid, the acid and baking soda show a physical reaction of fizzing and eventually dissolving. Materials needed for this lab was goggles, aprons, beakers, water of the same temperature, mortar pestle, and three alka seltzer tablets

Slime is a unique play material composed of a cross-linked polymer. It is classified as a liquid and is typically made by combining polyvinyl alcohol solutions with borate ions in a large mixing container. It often has an unpleasant odor, a green color, and is cold and slimy to the touch. In scientific terms, slime is classified as a non-Newtonian fluid. These are thick liquids that have a variable viscosity. Viscosity is a measurement of the resistance to flow when a shearing force is applied

When introduced to the Coupling Ratio topic there has been controversy for three decades. The initial number of the study was a 2 from Mitchell’s direction of studies, which evolved to the modern day 4 of today. Before the 4 was proven in this study, the 3 was accepted for a number of years because of the realistics. This changed in 1990, when a laboratory gave clear results upon the actual ratio being a 4. Whereas, in previous studies the accountability was low due to avoiding the following possible

Within the first part of this lab with creating a 0.500 M solution, it is important and necessary to use deionized water. This is because any other source of water, like tap water, has electrolytes such as fluoride and calcium which will affect the solution because it will not be pure sodium and chlorine ions within the solution. When creating the solution of NaCl, the deionized water must be added to NaCl. This is because if the NaCl was added to the 1.0 L of deionized water, then there is the possibility

means nothing would operate properly and we would die. (S-cool.co.uk). Different factors affect the suitability of body fluid to sustain life. These six things need to be controlled in our body: -Urea: waste Chemical produces when we digest amino acids in the liver. It must be removed through urine or sweat because

Distinction task: Explain which steps in the procedure could reduce the final yield: Explain which steps could reduce or improve purity of the final product: Steps 1, 2,6,7,8,9,10 and 12 are all to do with measuring. This is an important factor when thinking about trying to get as much yield as possible because if the accuracy is wrong we would lose yield and therefore would reduce the final product. For example, during step one, the alcohol has to be poured into the pear shape flask. There is a

At least once in our life we all made the mistake of shrinking or stretching a piece of clothing by washing or drying it using the wrong program, but thankfully the clothes can be restored to their initial shape if you just read the following lines and apply these practical tips. Fix a stretched sweater with the dryer Sweaters are very pretentious, being one of the few clothing articles that will stretch even if you didn't make the mistake of washing or drying them the wrong way, deteriorating over

In our seventh Grade science Class we were asked to find a project to do for Science Fair. My partner and I chose to pick a topic about evaporation, We picked how fast different liquids would evaporate. One thing That might be a set back to this project is that it is all based on time and the weather.We will be measuring five different types of liquids and gasses, Which are two different brands of water, alcohol, Vinegar , and gasoline. We are estimating that this project will take anywhere from

Investigation Plan Problem When you boil a pot of water on the stove, it takes a while until it boils. What do you think would happen if you put salt in the boiling pot of water? When ice forms on the streets, it can be dangerous and cause accidents. What do you think would happen if we put salt on the streets before the water froze? Hypothesis When you put salt in a pot of boiling water, that will raise the temperature of the water, and the water will boil faster. When you put salt on the

Analysis: Using the data from Table 1, calculations were performed to determine how much CO2 was expelled. This data is listed in Table 2. According to the data in Table 2, it is confirmed that more CO2 was expelled after exercising. While exercising, more oxygen is needed in the body for energy. Since more oxygen is inhaled, it makes sense that more CO2 is exhaled. Discussion: The control flask was used to establish a baseline so that the other flasks could be compared to it. A control is needed