PPT-Moles & Stoichiometry

By Skye Smith What is Mass Mass can be defined as a quantitative measure of an objects resistance to the change of its speed Scientifically speaking mass IS different than weight which is the measure of a planets gravitational force on an object. and Stoichiometry. Mole Ratio. Recall:. The coefficients . of a balanced chemical equation give the mole ratio of one chemical . to another. We can use these numbers to predict the number of moles of product produced. Gas Stoichiometry. Recall:. The law . of combining volumes . W. hen . gases react, the volumes of the reactants and products react in whole. -number . ratios if the temperatures and pressures are constant. . Step-by-Step Mass to Mole. What is Stoichiometry. Stoichiometry is the study of the relationships or ratios between two or more substances undergoing a physical or chemical change. We will be taking steps to solve the different equations. Do Now: Convert the following. What is the conversion factor for . feet to inches: 1 foot = ___inches. Feet to yards: 1 foot = ___yards. c) 12 . ft. = ___________ inches. d) 72 inches = ________ yards. The Arithmetic of Equations. Section 1. Section 1 Learning Targets. 12.1.1 – I can explain how balanced equations apply to both chemistry and everyday life.. 12.1.2 – I can interpret balanced chemical equations in terms of moles, representative particles, mass, and gas volume at STP.. Using ratios of balanced reactions to manipulate the chemical variables in these reactions. Calculators, reference tables, notes.. Get your thinking caps on!. For every single chemical reaction that’s balanced, we can determine the . Balanced . chemical reaction equations. give the ideal stoichiometric relationship among reactants and products. . The reactants for a reaction in an experiment are not necessarily a . stoichiometric. 23 . particles. . So a “mole” is a number, very similar to a dozen. . A dozen = 12 . A mole (mol) = 6.022 x 10. 23. It can be found in your reference packet on page one. Avogadro’s number = 6.022 x 10. Roles:. Player 1. : . set up problem and work through first conversion factor. Player 2. : . work through second conversion factor (if there is one). Player 3. : . work through third conversion factor (if there is one). 2. O. 3. ) . C/W. 23/09/2020. 3.2.1. Ar of Al = 27. Mass of Al in Al. 2. O. 3. = 27 x 2 = 54. Mr of Al. 2. O. 3. = (27x2) +(16x3) = 102. Percentage of aluminium = 54/102 x 100 = 52.94%. Progress Outcomes. 2. .. 2.) How many moles are there in 63.2g of Cl. 2. ?. 60.4L O. 2. . 22.4L O. 2. . 1 mol O. 2. . = 2.7 mol O. 2. 63.2g Cl. 2. 70g Cl. 2. 1mol Cl. 2. = 0.903mol Cl. 2. Ch. . 9. Math In Chemistry. Concept 1 2¥ One mole of NaCl contains 6.022 x 10 NaCl formula units.¥ Use the mole quantity¥x23 ¥ The mass of an atom in amu¥; .g/amu = 1.674 x10-24 gMass of 1 mole of H atoms: 1.674 x10-24H If you are a teenager and suffer from acne problems in a rather severe way, you know how this may lower your self-confidence. The same applies if you have a wart, mole or skin tag in parts of your body that are visible. Here I am talking about those \'horrible warts\', moles or skin tags you may have or think that you have on your face. Learning Objectives:. Calculate the amount of substance in moles, using solution volume and concentration . Describe a solution’s concentration using the terms concentrated and dilute. . Key Words:.