Potassium hydroxide

What is the Percent by Mass of NaHCO3 in Alka-Seltzer Tablets? Introduction: The moment an Alka-Seltzer tablet hits water, it begins to fizz. These tablets are over-the-counter antacids and pain relief medications that contain aspirin, sodium bicarbonate, and citric acid. The fizzing is a result of a reaction occurring where carbon dioxide (in the form of bubbles), water, and sodium acetate is formed. The fizzing and carbon dioxide bubbles are a result of the sodium bicarbonate splitting and reacting

Assignment 3.1 For this assignment you will need to complete the following: Chapter 13: Questions 1 and 2 (pg. 179) Chapter 14: Questions 1, 2, 3, and 4 (pgs. 187-188) Chapter 15: Questions 1, 2, 3, 4 and 5 (pgs. 196-197) Chapter 13: Plumbing Question 1: Determine the water line components needed to complete the water supply for the bathroom shown in figure below. 11 feet of 0.5" for cold and 3.5 for hot pipe line 4 of ½ by 6” (fitting lavamanos) 4 of ¾ * ½ * ½ (tee) 11 feet of

There are many steps to prepare a quantitive solution. First you have to calculate the molar mass of solution. Then you place the solution into 1000mL of water, making a 1M solution. After you make a 1M solution you change it to the designated amount, and change the molar mass, and the molar solution. Finally you have the need molar solution all you have to change is the volume, and for that you simply divide both the the mass and volume by the same number you need to obtain the designated volume

The member’s in the 8th grade science class is trying to find out what is in this mystery mixture. All of the class has to find out what is in the Mystery mixture. But there are some things that the entire 8th Grade has to know before they start their testing. There are physical and chemical properties and you have to now those before they start testing their Ideas. The physical properties are the first one. The names of them are, change of smell, appearance in the substance, Taste, touch and color

1. gain all substances and gadget. 2. Create the answers of the amines. 3. Hexanediamine: three.26 ml molten hexanediamine and water to 50 ml, or 1.sixty three ml molten hexanediamine and water to twenty-five ml. 4. Octanediamine: three.sixty one g and water to 50 ml or 1.eighty g and water to twenty-five ml. 5. Decanediamine: four.31 g and water to 50 ml or 2.15 g and water to 25 ml. 6. Label them. 7. Create the solutions of the acyl chlorides. 8. word: the finished answers are all 50 or 25 ml

Title- Hydrated Crystals, Nic Turner, Mckinsey Bullock and Matthew Miller, Chemistry II, Mrs. Shake, September 22, 2016. Introductory Paragraph- In this lab, we tested how much water was in a 3.00 gram amount of hydrated MgSO4 (Magnesium sulphate). MgSO4 is a salt; salts are often associated with water being in their structure. This lab was conducted so that we would be able to find the formula for the amount of water in the sample of magnesium sulphate. The goal was find the formula of a hydrous

Diet Coke and Mentos Final Experiment Directions: Design your own experiment to test some variable of the Diet Coke and Mentos lab. Identify one variable that you will change and test – this will be your Independent Variable. Independent Variable: ____Amount Of Mentos__________________________________ Dependent Variable: __________________Geyser Height (feet)____________________ Problem: How is the height of the geyser affected by the number of mentos added to the Coke? Hypothesis (Use

Your doctor is giving you an inhaler for your asthma called Albuterol. This medication helps to open up your airway and make breathing easier. He wants you to do 2 puffs inhaled, every four hours as needed when you start to wheeze, cough of become short of breath. Make sure that you use the extension piece on the end of the inhaler. Shake your inhaler 3 or 4 times. Remove the cap and put it in the spacer. Breathe out and then bring the spacer to your mouth. Put the mouthpiece between your teeth and

For this experiment, The scientists are testing the pH level of salt ( NaCl ) by putting water, measuring the pH, and then adding salt and checking the pH after. The scientist want to evaluate how acidic or how much of a base the salt is. The independent variable would be the salt. The dependent variable would be the pH level. The control would be the pH before salt is added. If the scientists add salt to pure water, then pH level of the water will drop turning the water acidic. In the experiment

This lab deals with the chromatography of support hues which suggests you understand what kind of blends are used as a piece of a thing like sustenance contrasting so as with shade et cetera the result to FD&C Nourishment Colors. You use six different food hues, four sustenance tones out of the store, two particular Kool –aid powder and four exceptional shades of sweet like M&Ms you use for the chromatograph. At the end you endeavor to find which sustenance hues are in substitute things. Test and