hypothesis proposed that if a small amount of salt was added to the reaction‚ then it cause the rate of the reaction to speed up‚ but if too much salt was added‚ then it will instead decrease the rate of the reaction. The data revealed that no additional amount of salt was the reaction that had the highest rate. As shown previously in the data table‚ the first trial’s average reaction rate of 4.5 mL/min was higher than the other two reaction rates where salt was added for trial 2 and trial3‚ 2.125 mL/min
Premium Enzyme Chemistry Chemical reaction
This experiment explores how salt and sugar affect the melting rate of ice in water. Research Questions: * Does adding salt to ice and water slow down‚ speed up‚ or not change the rate the ice melts in the water? * Is salt the only substance to have this effect? What about sugar? Knowing how to speed up the melting rate of ice is very important information for anyone who needs to de-ice roads or driveways after a winter storm. While it seems simple‚ adding salt to ice water actually activates
Premium Water Melting point Liquid
How Much Water Does Epsom salts Contain? Purpose The purpose of the experiment was to find the percent of water in Epsom salts by heating it. To find the percent of water in a hydrate‚ the hydrate must be heated. The experiment did not only show how dehydration occurs‚ but this experiment also gives an accurate and definite portrayal of the amount of water that is removed Background Information A hydrate is any compound that contains water. An anhydrous compound is a hydrate in which the water
Premium Water Chemistry Molecule
The Effects of Sildenafil on Plant Growth using Brassica rapa seeds Introduction: Plant growth and development are affected by an overwhelming amount of factors in their environment but all these factors can be manipulated and given the perfect conditions the plant can grow to reach its peak size and potential. Rate of plant growth intrigued my fellow group members and I so it was decided that growth in mm as well as germination of the seed itself would be studied. With research being conducted
Premium Plant Seed Fruit
However‚ for a metal ion indicator to be suitable in n EDTA titration‚ it must not bind as strongly with metal ions as EDTA does. Murexide is therefore suitable. AIM The aim of this experiment is to determine the percentage of nickel in a nickel(II) salt using EDTA. METHOD The following apparatus was collected: 50cmᶟ burette ●Glass stirring rod 20cmᶟ pipette ●Hydrated nickel(II) sulphate (NiSO₄.6H₂O) 100cmᶟ standard flask ●Standardised 0.10moll⁻¹ EDTA solution 250cmᶟ conical flask ●1 moll⁻¹ ammonium
Premium Ammonia Titration Hydrogen
Seperatation Technqiues of Sand/Salt/Water Mixture Most of the material that are encountered in everyday life are not pure substances. Materials ranging from cement‚ food and ink are formed from physical combinations of various substances called mixtures. A mixture is a type of material that consists of two or more different substances that are not chemically combined. All mixtures can be separated back into its original state except for those that undergo irreversible change. A mixture can take
Premium Polymer Water Linguistics
Salt Of The Earth When I saw the cover of this movie I thought that I would not like it at all because it looked like an old movie and I really don’t like the black and white style. Watching it surprised me a lot. I was very moved and touched by the actual characters and the moral of the story. Knowing that this was not a fictional movie made it that much harder to not get emotional. There where many issues addressed in this movie with the Mexican-American mine workers. In this movie they make
Premium Film English-language films Actor
Safety Wear goggles ‚ Follow instructors rules at all times‚ Don’t eat anything or drink‚ no horse playing in the lab Pre Lab Questions 1. Salts of higher valence cations (2+ or higher) are insoluble‚ unless they are chlorides or nitrates. Cations of +1 charge are soluble‚ except for silver. However‚ silver nitrates are soluble. Hydroxide salts of cations of +3 charge or higher are insoluble‚ except at low pH. 2. Precipitate is formed when substance is insoluble. The solubility rules determine
Premium Solubility Chemistry Solution
Award‚ and is an author on Oprah’s book list. Who is this marvelous writer? Her name is Barbara Kingsolver. In her first book‚ The Bean Trees‚ her life and political views are greatly displayed throughout her writing and her choice of themes. Barbara grew up in rural Kentucky and later lived in Arizona while pregnant with her first child. Oddly enough‚ in The Bean Trees the character Missy/Taylor Greer grew up in Kentucky and acquired a child on the way to her unknown destination‚ which turned
Premium Writing Literature Fiction
Marinduque Midwest College Dili‚ Gasan‚ Marinduque COLLEGE DEPARTMENT The EFFECTS OF poor QUALITY EDUCATION over a lifetime Submitted by: Christian Jay F. Zoleta BEED IV- Sagittarius Submitted to: Mr. Joey Semilla Instructor In Partial Fulfillment in the Requirements in Social Dimension SY 2013-2014 I. Introduction The impact of low-quality education can be negative as it fails to produce
Free High school School Poverty