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
Garrison Point Fort is a former artillery fort situated at the end of the Garrison Point peninsula at Sheerness on the Isle of Sheppey in Kent. Built in the 1860s in response to concerns about a possible French invasion‚ it was the last in a series of artillery batteries that had existed on the site since the mid-16th century. The fort’s position enabled it to guard the strategic point where the River Medway meets the Thames. It is a rare example of a two-tiered casemated fort – one of only two of
Premium 19th century Virginia American films
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
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
ACID/BASE You might need to know the following K values: CH3COOH Ka = 1.8 x 10–5 Benzoic Acid Ka = 6.5 x 10–5 HNO2 Ka = 4.5 x 10–4 NH3 Kb = 1.8 x 10–5 HF Ka = 7.2 x 10–4 H2S Ka = 5.7 x 10–8 HSO4– Ka = 1.2 x 10–2 HS– Ka = 1.2 x 10–13 HCOOH Ka = 1.8 x 10–4 HOCl Ka = 3.0 x 10–8 SIMPLE ACIDS AND BASES 1. According to the Brønsted–Lowry definition‚ which species can function both as an acid and as a base? (A) Cl– (B) SO42– (C) NH4+ (D) HCO3– (E) H3O+ 2. Which of the following
Premium Acid PH Sodium hydroxide
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
The Battle of Fort Sumter took place on April 12‚ 1861 and continued on until April 14‚ 1861. Union troops had 80 men total‚ Confederate troops with 500 men. No men were killed‚ wounded‚ missing or captured during the battle. A total of 580 men had been involved with this battle. On December 26 Robert Anderson‚ the Union’s commander‚ moved his men from Fort Moultrie to Fort Sumter. Confederate’s commander‚ Pierre Gustave Toutant Beauregard (P. G. T. Beauregard) sent off aids on Thursday‚ April
Premium American Civil War Confederate States of America Abraham Lincoln
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
Data base • What are Group Functions? • Types of Group Functions • Using Group Functions • Using AVG and SUM function • Using MIN and MAX function • Using COUNT function • Group functions and NULL values • Using the NVL Function with Group Function • Creating GROUP of DATA • Creating GROUP of DATA:GROUP BY Clause • Using the GROUP BY clause • Grouping by more than one column • Using the GROUP BY clause on multiple columns • Illegal
Premium SQL Mathematics Table