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Calculating Molar MassOn the periodic table, the atomic mass given is the mass (in grams) of one mole of that atom. Sodium (Na) Molar Mass = g Magnesium (Mg) = ____ g
What about molecules? NaCl has one of each atom= = g in one mole of NaCl H20 has 2 hydrogen and 1 oxygen = 2 (1.0079) = g in one mole of H20
You need to be very careful when counting the number of atoms of each element in a molecule.Count the number of atoms for each element in the molecule: Ca(OH)2 Na2(CO3) CH3OH
Find the molar mass NH3 CO3 HCl Mg(OH)2 Fe3(PO4)2
Converting moles to massDetermine the molar mass of one mole of that molecule Use a conversion factor 1 mole = ____ g (molar mass)
Determine the number of moles:25 g Li 251 g F2
Determine the mass: 2.63 moles of CuSO4 0.73 moles of Mg(OH)2
Volume Applies to gases ONLY at STP: 1 mole = 22.4 LThis is referred to as molar volume STP- Standard Temperature (0°) & Pressure (1 atm)
How many grams are there in 28.6 L of carbon monoxide?
1 Chapter 12 Chemical Quantities. 2 How do you measure things? How do you measure things? n We measure mass in grams. n We measure volume in liters. n.
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1 Section 3.3 The Mole: A Measurement of Matter n OBJECTIVES: –Describe how Avogadro’s number is related to a mole of any substance.
7.2 More Mole Conversions!!!. - Molecular Oxygen = O 2 - Atomic Oxygen = O from the periodic table 7 elements that exist as diatomic molecules (MEMORIZE)
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Chapter 7 Chemical Quantities or How do you measure how much? You can measure mass, volume, or you can count pieces of a substance. We measure mass in.
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Mole Map Grams mole Volume of a STP molecules atoms Atoms (element) 22.4 L 6.02 x # atoms per molecule 6.02 x
Chapter 7 Chemical Quantities or How you measure how much? You can measure mass, volume, or you can count pieces of a substance. We measure mass in grams.
CA Standards Std. 3e: Students know how to calculate the masses of reactants and products in a chemical reaction from the mass of one of the reactants.
A Mole is an Unit.
Miss Fogg Spring 2016 A particle can refer to an individual atom OR a type of molecule ◦ Jellybean ◦ Baseball ◦ Carbon atoms ◦ Hydrogen atoms ◦ Water.
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Molar Mass. A compound is a collection of bonded together. Ethanol, CH 3 CH 2 OH, is made up of : carbon atoms, hydrogen atoms, and oxygen atom, 2 6.
Chapter 7 Moles. What is a Representative Particle The smallest unit into which a substance can be broken down without changing the composition of the.
1 Chapter 8 Chemical Quantities. 2 How you measure how much? How you measure how much? n You can measure mass, n or volume, n or you can count pieces.
Chemical Quantities Chapter 10. The Mole: A Measurement of Matter We can measure mass (g), volume (L), count atoms or molecules in MOLES Pair: 1 pair.
Chemical Quantities and The Mole
1 Chapter 10 “Chemical Quantities” Pre-AP Chemistry Charles Page High School Stephen L. Cotton Yes, you will need a calculator for this chapter!
IIIIIIIV The Mole I. Molar Conversions A. What is the Mole? n A counting number (like a dozen) n Avogadro’s number n 1 mol = 6.02 items A large.
Chapter 6 Chemical Quantities. How you measure how much? You can measure mass, or volume, or you can count pieces. We measure mass in grams. We.
Chemical Quantities Chemistry Tracy Bonza Sequoyah High School
THE MOLE: Is the SI base unit use to measure the amount of a substance. Ex: 1 mol H 2 (g) or H 2 (g) 5 mol H 2 O(l) or 5 H 2 O (l) 3 mol NaCl(s) or 3.
1 Chapter 6 Chemical Quantities Powers of Ten Animation.
AP Notes Chapter 7 Mole Representative Particles Molecular Mass (mm) - gam used for atoms - gmm used for molecules - gfm used for formula units MoleVolume.
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Sections 10-1 & 10-2 Mole Conversions. 1 mole = 6.02x10 23 atoms, = molar mass (g) = 22.4 L molecules, of any gas Formula units at STP Mass – Mole Problem:
Formula Stoichiometry. What is stoichiometry? Deals with the specifics of QUANTITY in chemical formula or chemical reaction. Deals with the specifics.
Volume – Gas is $4.00 a gallon Mass – Apples are $1.49 a pound Count – Bananas are $0.79 each How do we measure?
11.3 Moles of Compounds Objectives:
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The Mole Unit 5. Formula Mass Formula mass - also called: formula massmolecular mass molecular massformula weight formula weightmolecular weight molecular.
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Formula (Molar) Mass Li Mn K. Formula (Molar) Mass Add atomic mass of each atom in formula Unit: g/mol Mass of one mole of a pure substance.
UNIT V The Mole Concept. V.1 AVOGADRO’S HYPOTHESIS Avogadro’s hypothesis : Equal volumes of different gases contain the same number of particles (at the.
CO 2. WHITEBOARD PRACTICE MOLAR MASS Of COMPOUNDS.
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I. Atomic Mass 1.The unit of an element is an atomic mass unit (amu). 2.Carbon –12 has an atomic mass unit of 12. The atomic masses of other elements are.
2 Amounts of Substance Learning Objectives: 2.1 A r & M r, Avogadro’s number, and the mole 2.2 Ideal Gas Law 2.3 Empirical and Molecular Formula 2.4 Moles.
Stoichiometry Balancing Equations Molecular and Empirical Formulas Percent Composition Mole Conversions
The Mole Chapter 11 – Chemistry L1 LSM High School Section 11.1: Measuring Matter Objectives: Describe how a mole is used in chemistry Relate a mole to.
kittens21 Couple of meatballs121 dozen pencils1441 gross of.
Gram Atomic Mass 15 P Phosphorus mole of an element is equal to its atomic weight expressed in grams 1 mole of phosphorus = grams.
1 Chemical Quantities Coach Williams Chemistry. 2 Section 7.1 The Mole: A Measurement of Matter n OBJECTIVES: –Describe how Avogadro’s number is related.
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