Things to do Test yourself regularly Ask somebody at home to test you Make flashcards of the questions and answers Use these on Quizlet – Search “King’s Chem Revision” You’ll have a weekly quiz on these questions Remember, you can also use Seneca to keep revising. Mr King – Chemistry

ByThe Chemist’s Shorthand: Atomic Symbols. Element Symbols Neon Ne Chlorine Cl Nitrogen N. The Chemist’s Shorthand: Atomic Symbols. Oxygen O Silicon Si Zinc Zn. The Chemist’s Shorthand: Atomic Symbols. Gold Au Lead Pb Sodium Na Iron Fe. The Chemists’ Shorthand: Formulas.

BySolution Concentrations. Different ways of representing how much stuff is contained in a solution. Solution Components . Solution: a homogeneous mixture of two or more substances in a single phase

ByMoles to Grams. problem gives moles but the answer must be in grams Calculate moles just like mole to mole calculations Use flow chart to change moles to grams (x MM). How many grams of aluminum are needed to fully react with three moles of O 2 ? 4Al + 3O 2 2Al 2 O 3.

ByExperiment 20. Titration of Acids and Bases. In Lab. Work in groups of 4 2 people for Part A; standardization of the prepared solution of NaOH 2 people for Part B; analysis of an unknown acid Each student does their own calculations after sharing data. Part A.

ByOxidation number. The charge the atom would have in a molecule (or an ionic compound) if electrons were completely transferred. Free elements (uncombined state) have an oxidation number of zero. Na, Be, K, Pb, H 2 , O 2 , P 4 = 0.

ByThermochemical equations. A typical chemical equation is S + O 2 SO 2 It is called a “thermochemical equation” when we add information about H … S + O 2 SO 2 H = – 296.9 kJ If we change the equation, then the H also changes … SO 2 S + O 2 H = + 296.9 kJ

ByBell Ringer. How many moles of Sodium Sulfite, Na 2 SO 3 , are contained in 235.5 grams?. FW of Na 2 SO 3 = 126.06 g/mole 235.5 g Na 2 SO 3 1 mole Na 2 SO 3 = 235.5 moles Na 2 SO 3 X 126.06 g Na 2 SO 3 126.06

ByCalculating Molar Mass. On the periodic table, the atmoic mass given is the mass (in grams) of one mole of that atom. Sodium (Na) Molar Mass = 22.99 g Magnesium (Mg) = ____ g. What about molecules?. NaCl has one of each atom = 23 + 35.5 = 58.5 g in one mole of NaCl H 2 0

ByChemical Reaction Engineering Asynchronous Video Series. Chapter 4, Part 5: Selectivity Semibatch Reactors H. Scott Fogler, Ph.D. Selectivity and Yield. Instantaneous Overall Selectivity:. Selectivity and Yield. Instantaneous Overall Selectivity: Yield:. Selectivity and Yield.

ByThe Mole Part 2. Mass – Particle Conversions. How many atoms of gold are in 25.0 g of gold?. Mass – Particle Conversions. How many grams of He are in 5.50 x 10 22 atoms of He?. Moles of Compounds. Freon has the formula CCl 2 F 2 This now gives us new conversion factors. Example.

ByMolarity Calculations. Calculations – Part 1. Molarity of solution from the mass of solute and volume of solution. How to make a specific volume of a given concentration (M). Concentration of ions in a solution of strong electrolytes Moles of solute present in a given volume of solution

ByChapter 10. Unit Outline. Introduction : Measures of Quantity Molar Mass Molar Volume Percent Composition Finding Formulas. Measures of Quantity. 1 dozen = 12 doughnuts. EX1 : How many doughnuts are in 4.0 dozen?. EX2 : How many dozen are in 27 doughnuts?. Measures of Quantity.

ByChapter 3. Dynamic Modeling. Overall Course Objectives. Develop the skills necessary to function as an industrial process control engineer. Skills Tuning loops Control loop design Control loop troubleshooting Command of the terminology Fundamental understanding Process dynamics

ByMole-Mass and Mole-Volume Relationships. The Mole-Mass Relationship. To convert the mass of a substance to the number of moles of the substance you have to use the molar mass of an element or compound. Mass = # of moles x (mass/1mole). The Mole-Mass Relationship.

ByCh. 6: Chemical Composition. Dr. Namphol Sinkaset Chem 152: Introduction to General Chemistry. I. Chapter Outline. Introduction Counting by Weighing Chemical Formulas as Conversion Factors Mass Percent Composition Finding Formulas from Mass Data. I. Introduction.

ByMixing Solutions. That have something in common. Calculate the final concentration if 1 .00 L of 2 .00 M CaBr 2 and 3 .00 L of 1.50 M CaBr 2 are mixed. To find the final concentration(Molarity), we need total moles and total volume (litres). 2.00M = moles 1.50M = moles

ByMolar Mass and Formulas. Chapter 3 (sections 3.1-3.5). What is a mole?. A mole is used to represent the quantity 6.02 x 10 23 . It can be used to represent that amount of ANYTHING: -atoms -molecules -ions -compounds -particles -items (ex: students, homework assignments).

ByChapter 7: Moles and Quantities. A. Moles: Mole – a given quantity (amount) of a substance - the molar mass (gram formula mass or molecular weight) of any substance (changes for each substance) - 22.4 L of any gas - 6.02 x 10 23 particles in any substance.

ByView Moles PowerPoint (PPT) presentations online in SlideServe. SlideServe has a very huge collection of Moles PowerPoint presentations. You can view or download Moles presentations for your school assignment or business presentation. Browse for the presentations on every topic that you want.