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Chemistry 100(02) Fall 2010

Chemistry 100(02) Fall 2010

Chemistry 100(02) Fall 2010. Instructor: Dr. Upali Siriwardane e-mail : upali@chem.latech.edu Office : CTH 311 Phone 257-4941 Office Hours : M,W, 8:00-9:00 & 11:00-12:00 a.m Tu,Th,F 9:00 - 10:00 a.m.   Test Dates : March 25, April 26, and May 18; Comprehensive Fina

By maine
(229 views)

Solute

Solute

Solute. substance that is dissolved usually less amount. Solvent. substance doing the dissolving. Concerning Solutions. Like things dissolve like things Polar dissolves polar compounds nonpolar dissolves nonpolar. Ions will react only if one of the following happens.

By judith
(128 views)

Entry Task: April 27 th Friday

Entry Task: April 27 th Friday

Entry Task: April 27 th Friday. Question: What is the molarity of 1.2 moles of calcium carbonate in 1.22 liters of water?. Agenda:. Sign off Discuss Concentration ws Notes on Dilutions HW: Concentration and Dilution ws.

By merlin
(115 views)

Coolest Demo of the School Year

Coolest Demo of the School Year

Coolest Demo of the School Year Table I shows us 25 chemical reactions and physical changes, and the Δ H for each of them. When Δ H is a negative number, the reaction is exothermic. When Δ H is a positive number, the reaction is endothermic

By chars
(117 views)

Steps for solving titration problems

Steps for solving titration problems

Steps for solving titration problems. Balanced neutralization equation Volume & concentration of base -> mols OH - mols OH - to mols H 3 O + mols H 3 O + to mols acid mols acid & volume acid to concentration of acid. Practice Titration Problem.

By fuller
(150 views)

Types of Chemical Reactions and Solution Stoichiometry

Types of Chemical Reactions and Solution Stoichiometry

Types of Chemical Reactions and Solution Stoichiometry. Chapter 4 E-mail: benzene4president@gmail.com Web-site: http://clas.sa.ucsb.edu/staff/terri/. Types of Chemical Reactions and Solution Stoichiometry – ch 4. 1. Distinguish between solute, solvent and solution.

By elgin
(144 views)

Assignment #34 Hydrates, Naming & Formulas

Assignment #34 Hydrates, Naming & Formulas

Assignment #34 Hydrates, Naming & Formulas. 1 mono 2 di 3 tri 4 tetra 5 penta 6 hexa 7 hepta 8 octa 9 nona 10 deca. Compounds With Water Attached CaCl 2 • 2 H 2 O Name the ionic compound, then use a prefix for the number of water molecules. Calcium chloride dihydrate

By zaria
(68 views)

ACIDS AND BASES

ACIDS AND BASES

ACIDS AND BASES. TITRATIONS. Acid Base Titration. A very accurate method to measure concentration. Acid + Base  Salt + Water. H + + OH -  H 2 O. Moles H + = Moles OH -. Buret. Solution with Indicator. Acid-Base Titrations.

By yannis
(123 views)

Acids and Bases

Acids and Bases

Acids and Bases. Acids. An acid is a substance that produces hydrogen ions (H + ) when in solution with water Water (H 2 O) is made up of even amounts of H + and OH - ions. Water is NEUTRAL because of this. When an acid dissolves in water, this changes the amount of H + ions.

By teleri
(84 views)

Molecular Formula

Molecular Formula

Molecular Formula. Percent Composition  Empirical Formula. The percent composition of fuel is 81.7% carbon and 18.3% hydrogen. What is the empirical formula of the fuel? Start by assuming 100 g of the compound (81.7 g) / (12.01 g/mol) = 6.80 mol C (18.3 g) / (1.008 g/mol) = 18.2 mol H.

By harva
(99 views)

States of Matter Review Clicker

States of Matter Review Clicker

States of Matter Review Clicker. Is this a heating or cooling graph? . Heating Cooling Both of the above None of the above. What is the condensation temperature of the substance? . 0 °C 50°C 100°C 200°C. There are two flat sections in the above graph. Why? .

By melora
(74 views)

Chapter 10 Acids and Bases

Chapter 10 Acids and Bases

Chapter 10 Acids and Bases. 10.1 Acids and Bases 10.2 Conjugate Acid-Base Pairs. Acids. Arrhenius acids Produce H + ions in water. H 2 O H Cl H + (aq) + Cl - (aq) Are electrolytes. Have a sour taste. Corrode metals.

By siusan
(124 views)

Define displacement reaction . Predict what will happen when:

Define displacement reaction . Predict what will happen when:

Define displacement reaction . Predict what will happen when: Magnesium is put into Silver Nitrate solution Zinc is put into Magnesium Nitrate solution Write down the symbol equation for the reaction between Calcium metal and Lead Nitrate solution.

By edena
(164 views)

Precipitation Reactions

Precipitation Reactions

Precipitation Reactions. Precipitation. When two aqueous solutions combine to form an insoluble or only slightly soluble salt. Solubility Rules. Memorize: sodium, potassium, ammonium and nitrate always soluble. Is Each Soluble?. AgNO 3 KCl K 2 CrO 4 AgCl Ba(OH) 2 CaS NaOH.

By louvain
(243 views)

O 2 + 2H 2 → 2H 2 O

O 2 + 2H 2 → 2H 2 O

Disorder created in surroundings. Disorder created in system. O 2 + 2H 2 → 2H 2 O. Ba(OH) 2 (s) + 2NH 4 Cl (s) → 2H 2 O + 2NH 3 (g) + Ba 2+ ( aq ) + 2Cl – ( aq ). 2K (s) + 2H 2 O → 2K + ( aq ) + 2OH – ( aq ) + H 2 (g). Disorder created in surroundings.

By lynda
(76 views)

Chapter 15:

Chapter 15:

Chapter 15:. Solutions. Students will learn. Solution composition – solvent, solute Solubility Types of solutions – saturated, unsaturated, supersaturated Concentration units - % by mass, molarity , normality Solution stoichiometry. Solution. Two substances well, evenly mixed

By vonda
(139 views)

Number One Sodium chloride solution + lead (II) acetate solutions react

Number One Sodium chloride solution + lead (II) acetate solutions react

Objective: Practice 8 chemical reactions (2 of each kind) by writing word equations and balancing them, and deciding if they are synthesis, decomposition, single replacement, or double replacement. Please take out your reference tables, put away your phones , and get ready to think.

By rod
(214 views)

More on Reactions

More on Reactions

More on Reactions. Predicting Products Solubility Rules. Synthesis. In a simple synthesis reaction, two elements can combine to form a binary ionic compound Remember to correctly write the ionic compound’s formula, you must balance charges Balance the equation when you finish. Decomposition.

By kirkan
(122 views)

Previously in Chem104: What determines reaction spontaneity? Entropy

Previously in Chem104: What determines reaction spontaneity? Entropy

Previously in Chem104: What determines reaction spontaneity? Entropy. Today in Chem104: A recap The 2 nd Law & No Free Lunch What chemists really use- free energy Worksheet: “What’s keeping you alive?”. Hypothesis 1: Spontaneous reactions are exothermic. HCl + NaOH.

By amandla
(142 views)

Equilibria

Equilibria

Equilibria. An Introduction for Chem Honors Students. Reaction is reversible Both products and reactants are present Forward and reverse reactions take place at the same rate. For the reaction 2A  B. What is an Equilibrium Reaction?. K expression. In general terms

By coen
(221 views)

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