Hard water

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  • An Article On Hard Water

    2053 Words  | 9 Pages

    Introduction “Hard water is water that contains cations with a charge of +2, especially Calcium and Magnesium.” This is a direct quote from Professor Rachel Casiday and Regina Frey from the Department of Chemistry at Washington University. Essentially, water hardness is the minerals that are built up into the ground water that can have several different effect on the water. It is determined by several different cations, but in this experiment, only by the amount of Ca^(2+) and Mg^(2+). Water is an absolute

  • Finding The Concentration Of Hard Water Ions

    1541 Words  | 7 Pages

    Concentration of Hard Water Ions in a Water Sample Using Complexometric Titration By: Alya Barq CHM 2046L 22 April 2016 Abstract: “Hard water” is defined as water with an excess content of ions such as Mg2+ and Ca2+. Hard water causes a variety of problems, among them being that hard water ions can block pipes and decrease water flow, can cause scaly deposits to form where there is water contact, and cause an increase in utility bills due to amassed scales in water heaters. In this

  • Hard Water Lab Report Essay

    1043 Words  | 5 Pages

    Lab Report: Hard Water Purpose: The purpose of this lab is to determine whether a liquid is hard water or not. Background: Hard water is the water that has a high amount of mineral in it, usually Ca2+ and Mg+. These cations enter the source of water by leaching from minerals within a wet underground layer of water- bearing rock, or an aquifer. According to the WHO, hard water is not harmful to human’s health but it’s a serious problem in the water industry. Household plumbing and appliances

  • The Effects Of Water On Natural Water Essay

    1149 Words  | 5 Pages

    Water is one of the most important resources that earth can offer. Indeed, water is essential to the survival of all living things. Pure water must be colorless, tasteless and odorless. However, sometimes, natural water can contain impurities. Indeed, dissolved solute coming minerals in rocks and soils are often present in natural water. The cations Mg2+and Ca2+ are the most common dissolved compounds found in natural water. The presence of the dissolved Cations Ca2+ and Mg2+ (and other polyvalent

  • Laundry Detergents As A Cleansing Agent

    1766 Words  | 8 Pages

    including Alkyl Sulphonates, which are similar to soap but less affected by hard water (Farlex, 2014). Like soap, detergent increases the ability of water to penetrate fabric and break down greases and dirt, however they are derived from organic acids rather than fatty acids (Mifflin, 2005). A detergent is an ion or molecule that contains both polar and nonpolar components. The polar component allows the detergent to dissolve in the water, whereas the nonpolar component solubilizes greasy materials that are

  • Using Microsoft Excel 2010 On The Heart Disease Mortality Data Rates Versus The Total Hardness

    1247 Words  | 5 Pages

    represent the variance in heart disease rates that can be explained by the change in drinking water hardness. The adjusted R2 value is dependent on the number of points within the data. The significance of the R2 value was determined by the resulting p-values. The test was considered significant if the p-value was less than 0.05. WTPs were further divided by levels of hardness into moderately hard, hard, and very hard classifications to check for correlations within classifications. Linear regressions were

  • The Chemistry Of Natural Waters Lab Report

    3065 Words  | 13 Pages

    The Chemistry of Natural Waters Lab Report Richard Reube November 6, 2014 Chemistry 111 Section: 103 Group Members: Alan Reyderman Leslie Rowland TA: Steven Taylor Introduction: Water plays a vital role in nearly all key processes of human life. From merely sustaining it in less developed countries, all the way up to being the cornerstone of many technological and industrial processes in modern America. The average consumption ranges from 5.4 liters in Madagascar to over 500 hundred liters in America1

  • Chemistry Of Natural Waters Lab

    1337 Words  | 6 Pages

    Natural Waters Lab Chemistry 111 Section 107 Seung Yi Lee Group Members: Madison Haas Bethany Guillen Josh Grunden Karina Grullon Peyton Haefner The Chemistry Of Natural Waters Lab In the Chemistry of Natural Waters Lab we were to collect a sample of water, ranging from a fountain, stream, bottle, or tap water. After we collected the samples we all did many tests to see what the hardness was for each one. Water hardness is determined by the amount of Calcium and Magnesium in the water.(2) Water

  • The Chemistry Of Natural Waters

    2250 Words  | 9 Pages

    Emily Schwarz 12 November 2014 The Chemistry of Natural Waters Section: 106 Group Members: Shaily Shah, James Shank, Aaron Selnick TA: Natalie Petrillo Introduction: “Hard water” is a term used to refer to water which has high concentrations of magnesium, calcium, and iron ions. (Lerner, 2014) In this experiment, concentrations of magnesium and calcium ions were the main focus. Water hardness is an important factor to consider because it has a great effect on the everyday lives of people


    2098 Words  | 9 Pages

    UNKNOWN SAMPLE #97 COMPLEXOMETRIC DETERMINATION OF WATER HARDNESS DR. BUDRUK CHM 152 LL SEAN MARKIS 4 FEBRUARY 2015 Introduction Using a Lewis base neutral molecule to donate electron pairs (ligands) to a Lewis acid metal ion center to form a single cluster (complex) ion. When the complex ions forms with a metal ion (chelation) the ligand used is called the (chelating agent). EDTA acts as a great chelating agent due to the Nitrogen and Oxygen donating an electron pair to the