Distilled water

"Prohibition has made nothing but trouble."- Al Capone. Alcohol was made illegal in the United States in 1920. Not very many people agreed nor followed that law. With so many people being rebellious, it made bootlegging into a big business and made many rich. Getting alcohol during prohibition could be as easy as walking to your neighbors house and picking it up. Law officials took bribes and even had their own stash of alcohol. The eighteenth amendment was hard to enforce due to the…

As indicated by the Official Journal of The Academy of Pediatrics liquor and tobacco are the two greatest dangers to adolescents. These two substances have an effect on adolescents and different substances that they will likely use in the future. “A preadolescent or adolescent who smokes tobacco or drinks alcohol is 65 times more likely to use marijuana, for example, than someone who abstains” (APA 2012). Commercials regularly promote different liquors and the use of these sales go up in the…

them in the experiment while performing any step. To make the samples we need to take the sample and add distilled water to it so that there is decent amount of sample made for performing the experiment. The ratio of distilled water to the sample solution (pure) is 1:1. [Note: there wont be any change in the molarity of the sample as we are just increasing the volume by adding distilled water to it.] To make the sample solution for Tropicana and Sweet lemon we need to filter it order to get…

Variable(s): Vinegar (200 mL), distilled water (200 mL), maple syrup (150 mL) Dependent Variable(s): Egg Problem: After twenty-four hours in each solution, what will happen to the egg and its mass? The solutions will make the mass of the egg increase and decrease depending on what the density of the liquid is. Hypothesis: If we put the egg in different solutions for twenty-four hours each then it will increase in volume when it's in the vinegar and distilled water but it will decrease in mass…

acid, resulting in the evolution of SO2 gas. Sulfur dioxide is a colorless gas with a characteristic choking odor. The sulfites of Na+, K+, and NH4+ are soluble in water. Most other sulfites are insoluble in water. However, due to the basic nature of SO32-, all sulfites dissolve in acidic solution. Sulphites may occur in natural waters or wastewaters as a result of industrial pollution and in treatment plant effluents dechlorinated with sulphur dioxide. Control of sulphite ion in wastewater…

Surname: Vilakazi Grade: 9L Teacher: Ms Mhlongo Science Investigation Question: Which soda water is the most harmful towards human teeth (for this investigation I will use egg shells because they have more or less everything in common with a human tooth)? Hypothesis: Coca Cola is the most harmful towards human teeth, and I say this because it contains more sugar than Coca Cola zero, Pepsi, Sprite and Distilled water, making it more harmful or corrosive to human teeth because this means that it…

only once. To make the experiment highly accurate, it should be performed it at least three times, with all the precise measurement of the materials needed, to avoid any kind of error. The control variable would be the solutions; corn syrup and distilled water. The mass of the egg would be tested throughout the experiment. Before placing the egg into the solutions, weigh the mass. After you have the mass recorded, place the eggs into different beakers that each has 150 ml of vinegar filled into…

9F Mrs Pienaar Supercooling Water Introduction Supercooling is relevant as it can help us increase the amount of time we can keep an organ outside a body before it is transplanted, Investigative Question How long do different types of water take to freeze. Hypothesis Tap water will start to freeze as the water reaches just below zero degrees Celsius. Distilled water will last for about 3-4hours in the freezer below zero degrees Celsius without…

October 18, 2015 Abstract This lab will be focused on the movement of water from an area of low to high concentration via osmosis (McKinley, O’Loughlin, & Bidle, 2015). This experiment will be tested on eggs that have had their shells removed and we will see how a couple of solutions of different concentrations will affect the membranes on the eggs. One egg will be placed in 30% sucrose solution and the other in distilled water. The purpose of this experiment is to see how osmosis would…

There were many observable factors when investigating osmosis in potatoes. Four different solutions were created (distilled water, 1% salt (NaCl), 3% salt and 5% salt. The potatoes were sliced until they were 3cm long, each test tube contained 3 strips of potato cores and a different concentration. The potato strips were weighed and the results recorded. The potato cores were left in each solution for 24 hours. Once the test results were collected the data was averaged and placed into a graph…