PPT-Converting Moles to Grams/Liters/Molecules/Atoms…

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 Building Blocks of Matter. Chapter 2. Chapter Outline. 2.1 The . Rutherford Model of . Atomic Structure. 2.2. . Nuclides and Their Symbols. 2.3 . Navigating the Periodic Table. 2.4 The . Masses of Atoms, Ions, and Molecules. SOLUTIONS & CONCENTRATIONS. WHAT IS A SOLUTION ?. WHAT IS CONCENTRATION & HOW IS IT MEASURED ?. IS DISSOLVING A CHEMICAL OF A PHYSICAL PROCESS ?. IF SUGAR IS DISSOLVED IN WATER IS ITS CHEMICAL NATURE CHANGED ?. Grams. to Moles. Liters to Moles. Moles. to Liters. Before we begin you will need your….. Calculator. Periodic Table. Mole Chart. Previously…. We learned that a . mole. is a new unit.. A mole can be used as a conversion factor.. “From Scratch” Formula. Sometimes you begin making a solution from solid crystal rather than diluting an already made solution.. This is the formula you will need!. Molarity= moles of solute/liters of solution. Uncertainties Review. As part of your Lab Group. Analyze the following data.. Mass of beaker: 7.15 g +/- 0.01 g. Mass of beaker + metal: 12.12g +/- 0.01 g. Height of cube: 2.12 . cm . +/- 0.01 . cm. A. General Features of Physical and Chemical Changes. A chemical change (a . chemical reaction. ) converts . one substance into another.. Chemical reactions involve:. Breaking bonds in the . reactants . 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. Mole Worksheet l. How many moles of magnesium are 3.01 x 10 22 atoms of magnesium? C,OSOO 2. How many moles are I .20 x 10 25 atoms of phosphorus? xqcq 3. How many atoms ar 23. How do you measure how much?. You can measure mass, . or volume,. or you can count pieces.. We measure mass in grams.. We measure volume in liters.. We count pieces in . MOLES.. . Counting. . Counting words are used to simplify a description of a number of items. . amu. on all . masses.. 1 . atom of helium has a mass of . ___________.. 1 . mole of helium contains __________________ atoms, and has a mass of . ___________.. 1 . formula . unit (molecule) . of calcium chloride (CaCl. The molar mass of an element is useful to convert moles of an element to grams, or grams . to moles. . . . For example, 1 mole . of . sodium has . a . mass . of . 22.99 grams.. Learning Goal . Calculate the molar mass of a . A Study in Scarlet. “In solving a problem of this sort, the grand thing is to be able to reason backward. This is a very useful accomplishment, and a very easy one, but people do not practice it much.”. subscript in a chemical formula.. Indicate the number of each type of atom in the following balanced chemical equation:. . Fe. 2. S. 3. (. s. ) . + . 6HCl(. aq. ) → 2FeCl. 3. (. aq. ) . + . 3H. Matter is made of different kinds of particles. . We count the number of particles of that substance. . Since there are a very large number of particles in any substance, we need to define a unit of measure:.