Worksheet - Acids‚ Bases and Salts 1. I am pure water. When heated my pH (increases‚ decreases)‚ because more of my water molecules dissociate. 2. I am a 0.020 M solution of weak acid‚ HA. If I only dissociate to the extent of 1.50%‚ what is the value of my Ka? 3. I am a 0.20 M solution of hydrocyanic acid‚ HCN‚ with a Ka of 4.93 x 10¯ 10 . What is my pH? 4. I am a buffer made from 0.10 M acetic acid and 0.15 M sodium acetate. If the Ka for acetic acid is 1.77 x 10¯ 5 ‚ what is my pH? 5. I am
Premium Acid Acid dissociation constant Acetic acid
What is the care value base? The care value base is a range of standards for health and social care. It is designed to guide the practice of professionals working in this area. The aim of the standards is to improve clients’ quality of life‚ by ensuring that each person gets the care that is most appropriate for them as an individual. The care value base offers guidance‚ and sets standards‚ in three main areas of health and social care: ➢ Fostering equality and diversity ➢ Fostering people’s
Premium Discrimination Individual rights Rights
Anna Powell 2nd I.Title: Acid-Base Titrations AP Chemistry Laboratory #6 II.Purpose: The purpose of this experiment is to standardize a sodium hydroxide solution and use the standard solution to titrate an unknown solid acid. The equivalent mass of the solid acid will be determined from the volume of sodium hydroxide added at the equivalence point. The equilibrium constant‚ Ks‚ of the solid acid will be calculated from the titration curve obtained by plotting the pH of the solution versus
Premium Sodium hydroxide PH Acid
UFOs‚ Underground Bases‚ and Government cover-ups Julian Mercado October 1‚ 2010 UFO‚ Underground Bases‚ and Government cover-ups Introduction UFOs have been seen by people all over the world. People of different cultures and ethnicities have different names for these unknown craft. In Spanish it is “objeto volante no identificado”‚ and in German it is actually UFO. Regardless of what race you are‚ UFO means the same thing‚ “Unidentified flying Object”. Let me be clear on this. It means
Premium Unidentified flying object
Introduction 1 2. What is base 5 number 1 3. How to read a Multiplication TABLE 2 4. How to read an Addition TABLE 3 5. Process of multiplying two base 5 number 3 APPENDIX A: LIST OF FIGURES 6 APPENDIX B: REFERENCE PAGE 6 ii PREFACE Thanks the help of my professor Nancy Acemian and the students who contribute their ideas when I write this instruction. Wenjun zhu February 2008 iii 1. Introduction In reality‚ people use base 10 numbers quite often
Free Multiplication Elementary arithmetic Addition
Man fears Time‚ yet Time fears the PyramidsThe Great Pyramid of Giza lies next to Cairo. It is today in greater Cairo. According to the wonders of the ancient world‚ the pyramid of Khufu is the only pyramid included in the list of the wonders. The other two of the pyramids of Giza are excluded from the list. This is the only monument of the seven wonders to survive till today in perfect condition and managing mere escapes from fires‚ earthquakes and other common disasters that hold a threat to
Premium Great Pyramid of Giza Ancient Egypt Egyptian pyramids
Acid-Base Titrations A Titration of Potassium Hydroxide Phthalate and Sodium Hydroxide Hanna Piper Department of Chemistry‚ SUNY College at Brockport‚ Brockport‚ NY 14420 Chemistry 205.06 Abstract Titrations are used to find the molarity of an unknown solution. A titration begins with an analyte and titrant being used to measure the unknown molarity of the analyte. In the following experiment‚ sodium hydroxide was used as the titrant and potassium hydroxide phthalate was used as the
Premium Sodium hydroxide Titration Chemistry
STANDARDIATION OF ACID AND BASE Eunice Ivy B. Gamboa ABSTRACT Solutions of known concentration are prepared by dissolving measured masses of standard acids in distilled water. The concentrations of unknown solutions of sodium hydroxide are determined by titration. An acid solution reacts with a base solution in a "neutralization" reaction. Titrations permit the concentrations of unknown acids/bases to be determined with a high degree of accuracy. In order to analyze unknown acids/bases‚ we must have a "standard"
Free Sodium hydroxide
Business Administration with a major in Marketing) SUPERVISED BY Nighar Sultana Lecturer Faculty of Business Administration BGC Trust University Bangladesh PREPARD BY Tasmin Akter Program : MBA ID No. : 120203049 Batch : 3rd Major : Marketing [pic] BGC TRUST UNIVERSITY BANGLADESH LETTER OF SUBMISSION 10 February
Premium Insurance Life insurance
GOTTHARD BASE TUNNEL‚ SWITZERLAND 1. INTRODUCTION Currently under construction to stretch a record length of 57 km‚ the Gotthard Base tunnel located in Switzerland spans the north of Europe‚ spanning through the Swiss Alps to the south of Europe. This railway tunnel has been designed to bypass the inefficient route of windy roads and cutting down travel time. The Gotthard Base tunnel consisting of twin tunnels is connected by cross passages at every 325m. The twin tunnels have been constructed
Premium Sedimentary rock Rock Plate tectonics