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chapter 4 - reactions in solution
chapter 4 - reactions in solution

Chemistry Cram Sheet
Chemistry Cram Sheet

... Used to tell how “off” you are from the value you should have gotten. Used mostly in lab. Ex: The specific heat capacity of iron is 0.45 J/gC. A student uses a calorimeter to experimentally determine the specific heat of iron to be 0.60 J/gC. What is the student’s percent error? ...
1 Assignment 5 Hydrogen – The Unique Element
1 Assignment 5 Hydrogen – The Unique Element

1 Assignment 4 Hydrogen – The Unique Element
1 Assignment 4 Hydrogen – The Unique Element

Final
Final

... Given a table, fill in #p, #n, #e, symbol, mass#, atomic #and most common charge for neutral atoms and ions Names to formulas, formula to names Perform calculations using: Rydberg equation c = νλ E = hc / λ = hν Write a set of quantum #’s for the last electron added or the first electron removed Wri ...
Press here to hemy 102 lab manual
Press here to hemy 102 lab manual

... To become familiar with the operation of a pH meter and quantitative equilibrium constants. ...
Chemistry Midterm Review 2006
Chemistry Midterm Review 2006

... Objectives 2.4 1. Classify the substances as either Arrhenius acids or Arrhenius bases and give their chemical name (STANDARD ONLY: only need to name a-g) a. HCl b. H2SO4 c. NaOH d. HC2H3O2 d. HNO3 e. Fe(OH)2 f. H2CO3 g. HNO2 h. H3PO4 ...
title of abstract
title of abstract

... Chelex-100 resin. Method calibration was performed using americium (Am-241) and samarium standard solutions and resulted in a high chemical recovery for cationexchange. Regarding, the effect of physicochemical parameters (e.g. pH, salinity, competitive cations and colloidal species) on the separatio ...
Qualitative Analysis Test for Ions
Qualitative Analysis Test for Ions

... (ii) Silver nitrate solution can be added to a solution to test for the presence of chloride ions. In this test, dilute nitric acid is added to the solution, followed by the silver nitrate solution. A white precipitate shows the presence of chloride ions. Why must the dilute nitric acid be added to ...
Year 11 Chemistry Balancing Equations
Year 11 Chemistry Balancing Equations

... Looking over your electron configurations, are there any elements above that have similar valence electron configurations to those of other elements? If so, list below the elements that are similar (in terms of valence electrons) and state the similarity for each of the groups. ...
Chemistry Spell check on
Chemistry Spell check on

... 2 For this section of the examination you must use an HB pencil and, where necessary, an eraser. 3 Check that the answer sheet you have been given has your name, date of birth, SCN (Scottish Candidate Number) and Centre Name printed on it. Do not change any of these details. 4 If any of ...
Study Guide
Study Guide

... 6. An iodine sample contains 2.91 × 1022 atoms of iodine. What is its mass in grams? [Use atomic weight: I, 126.9] 7. When a solid compound is described as a “hydrate”, what does this mean? 8. What is the difference in meaning between “2O” and “O2” when they occur in chemical equations? 9. 6.022 ×10 ...
Unit 2: Learning outcomes
Unit 2: Learning outcomes

... Tollens’ reagent or Fehling’s solution can be used to distinguish between aldehydes and ketones. Aldehydes reduce the complexed silver(I) ion and the complexed copper(II) ion to silver and copper(I) oxide, respectively. Aldehydes and ketones can be reduced to primary and secondary alcohols, respecti ...
AP_chemistry_Summer_Assignment_2014
AP_chemistry_Summer_Assignment_2014

... 60.A 2.0g sample of SX6 (g) has a volume of 329.5 cm3 at 1.00 atm and 20oC. Identify the element ‘X’. Name the compound. 61.When Hydrogen sulfide gas, H2S, reacts with oxygen, Sulfur dioxide gas and steam are produced. a.Write the balanced chemical equation for this reaction. b.How many liters of su ...
specimen
specimen

... The non-metals chlorine and carbon have very different boiling points. Chlorine is a gas at room temperature but carbon does not boil until well over 4500 oC. ...
Chapter 4,5,6
Chapter 4,5,6

... 4. A sodium hydroxide solution of unknown concentration is used to titrate a solution containing 865 mg of KHP (KHC8H4O4 , molar mass = 204.22 g/mol ). Unfortunately an excess of the sodium hydroxide solution is added to the KHP solution. The excess sodium hydroxide is titrated with 1.47 mL of a 0.1 ...
Inorganic Chemistry 412 / 512
Inorganic Chemistry 412 / 512

Bonding Nomenclature Notes
Bonding Nomenclature Notes

Honors Chapter 11 Reactions
Honors Chapter 11 Reactions

quant6stoichiom
quant6stoichiom

... - convert mass to moles - use ratio to get desired reactants/products in moles - convert moles to desired units ex. A fuel mixture of hydrazine, N2H4, and dinitrogen tetroxide, N2O4 was used to launch a lunar module. These two compounds react to form nitrogen gas and water vapour. If 150.0g of hydra ...
factors affecting strength of acids
factors affecting strength of acids

Autoionization in Liquid Water
Autoionization in Liquid Water

... The dissociation of a water molecule in liquid water is the fundamental event in acid-base chemistry, determining the pH of water. Because of the short time scales and microscopic length scales involved, the dynamics of this autoionization have not been directly probed by experiment. Here, the autoi ...
C b
C b

1 - Berkeley City College
1 - Berkeley City College

... Chem 1A Keys to Chapter 4 Exercises ...
Variation in Properties of Group II Compounds
Variation in Properties of Group II Compounds

... Each group of elements embodied in the periodic table has their own unique properties. As for group II elements, they are classified as one of the s-block elements, also named as alkaline earth metals. In this essay, the variation in properties of group II elements and their compounds are illustrate ...
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PH



In chemistry, pH (/piːˈeɪtʃ/) is a numeric scale used to specify the acidity or alkalinity of an aqueous solution. It is the negative of the logarithm to base 10 of the activity of the hydrogen ion. Solutions with a pH less than 7 are acidic and solutions with a pH greater than 7 are alkaline or basic. Pure water is neutral, being neither an acid nor a base. Contrary to popular belief, the pH value can be less than 0 or greater than 14 for very strong acids and bases respectively.pH measurements are important in medicine, biology, chemistry, agriculture, forestry, food science, environmental science, oceanography, civil engineering, chemical engineering, nutrition, water treatment & water purification, and many other applications. The pH scale is traceable to a set of standard solutions whose pH is established by international agreement.Primary pH standard values are determined using a concentration cell with transference, by measuring the potential difference between a hydrogen electrode and a standard electrode such as the silver chloride electrode.The pH of aqueous solutions can be measured with a glass electrode and a pH meter, or indicator.pH is the negative of the logarithm to base 10 of the activity of the (solvated) hydronium ion, more often (albeit somewhat inaccurately) expressed as the measure of the hydronium ion concentration.The rest of this article uses the technically correct word ""base"" and its inflections in place of ""alkaline"", which specifically refers to a base dissolved in water, and its inflections.
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