PPT-1 and 2 Step Mole Conversions

Drill Create your placemat on your giant whiteboard Solve How many moles are in 432 x 10 24 molecules of H 2 O Need calculator and Periodic Table today Spin your Whiteboard and grade. 1 stoichiometric equivalences stoichiometric mole ratios Mole-to-Mole Conversions HIGHER LESSON. Learning Objectives. To . explain. what chemical equations tell us about chemical reactions. To . explain. how we use equations to calculate masses of reactants and products. HIGHER LESSON. When . do you calculate . molar mass. ? . What is the . molar mass . of NO. 2. ?. How do you tell the difference between . one-step. and . two-step. conversions problems? . What is the. percent . of students who passed the quiz yesterday if 12 out of 18 students passed? What about 7 out of 13 students?. They tell us how much of each substance is involved in a chemical reaction. 2H. 2. + O. 2. .  2H. 2. O. 2 moles of hydrogen react with 1 mole of oxygen to make 2 moles of water. This is useful because now we can use it to work out what mass of hydrogen and oxygen we need and how much water is made. 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. Chemistry 3/18/19. Drill. Write down these questions. While watching the video clips, write the answers, and when done, discuss with your row:. Why is airbag use in cars important?. What is the chemistry involved in air bag inflation?. T. Trimpe 2008 http://sciencespot.net/. So How Do I Do A Metric Conversion?. We will be using a method called The Stair-step Method of Metric Conversion.. It requires two things; one, that you be able to count to 6, and two, that you know your left from your right.. 8.1. Solutions. 2. Solutions: Solute and Solvent. Solutions. are homogeneous mixtures of two or more substances. consist of a solvent and one or more solutes. 3. Solutes. spread evenly throughout the solution . big. concepts of Chemistry.. The mole is a . counting. number, just like. 1 dozen = . 12. things . 1 score = . 20. things . 1 ream = . 500. things . 1 mole = . 6.022 x 10. 23. . things or . 1 mole of a substance is 6.02 x 10. 23. . representative particles. .. Avogadro’s number = . 6.02 x 10. 23. Avogadro determined the difference between atoms and particles.. Representative particle. Use . the coefficients to predict the amount of reactant consumed or product formed. The ratio of the coefficients is a ratio of the moles taking part in a reaction.. Reactants (on the left of the arrow) are consumed. Molar Volume. 1 . mol. of gas = 22.4 L .  molar volume. What volume would be occupied by 0.77 moles of helium gas at STP?. Density of Gases. Density = molar mass/molar volume. What is the density of (in grams per liter) of carbon dioxide gas at STP?. The Mole in Chemistry . Not this!!. Not this!!!. The Mole. The mole is a counting unit. 1 pair = 2. 1 dozen = 12. 1 mole = 6.022 x 10. 23. atoms. This number is known as Avogadro’s number after Italian chemist .  . What’s a mole?. The . mole. is a unit of . measure. .. Just like meters tells us . length. and seconds tells us how much . time. , . the . mole. measures an . amount. . (how much).. Units of measure similar to mole include: .