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1 ρ g cm 3 b t C b v C r pm N 31 1402 000125 210 196 71 P 21 1012 182w 44w 280w 111 1 5 skupina 5 valenční. Chapter 5. E-mail: . benzene4president@gmail.com. Web-site: http://clas.sa.ucsb.edu/staff/terri/. Gases – Ch. 5. 1. Draw the following:. a. A closed monometer attached to a flask filled with CO at 250 . 2 Expresses the relationship between . pressure. , . volume. , and . temperature. of a . fixed. amount of . gas. .. . PV/T = k . or . P. 1. V. 1. /T. 1. = P. 2. V. 2. /T. 2. Charles’ Law. Episode 903. Limiting Reagent. You will see the word "excess" used in this section and in the problems. It is used several different ways: . a) "compound A reacts with an excess of compound B" - In this case, mentally set compound B aside for the moment. Since it is "in excess," this means there is more than enough of it. Some other compound (maybe A) will run out first. . Calculate the following percentage by mass:. percent = portion/total x 100. If two samples are the same substance, they should have the . same percent composition by mass.. A compound will have the same physical and chemical characteristics.. Put the sign in front of the number (ion charge other way). Oxygen always -2 (except in H. 2. O. 2. : -1). Hydrogen always +1 (except hydride: -1). Sum of ON in compounds = 0. Elements = 0. Monoatomic ion ON = charge. IB Topics 5 & 15. PART 4: . . Entropy & Spontaneity. “The time has come,” the Walrus said, . “To speak of many things: . Of shoes--and ships--and sealing wax—. Of Entropy, Enthalpy, and Free Energy. Enthalpy. Enthalpy (H)is the total amount of energy contained within a substance. Included all forms of energy, kinetic, potential…. Very difficult to measure all forms of energy within a substance, therefore a change in enthalpies is measured whenever a change occurs.. Chemistry 1105. Titration . Commercial White Vinegar. Determination of Molar Concentration Of Acetic Acid . . Materials . Acetic Acid , app 5 % per volume . Commercial White Vinegar. NaOH, 0.5 M . Strong Base. vocab. Limiting reactant- the one that runs out first, limits the amount of product that can be made. Excess- the one with reactant leftovers, not used up completely. What it looks like. C + O. 2. = CO. The Mole. mole. (mol)- SI Unit for the amount of a substance that contains as many particles as there are atoms in exactly 12g of carbon-12.. A unit of counting, like the dozen.. Avogadro’s Number. Limiting Reactant. Limiting Reagent. The . reactant. that is totally used up during the chemical reaction. Limits. the amount of . product. produced . Excess Reactant. Excess Reagent. The . reactant. Gas-liquid separation processes. (Ch. 10). TexPoint fonts used in EMF. . Read the TexPoint manual before you delete this box.: . A. A. A. A. A. A. A. A. A. A. A. A. A. Cooling. (condenser). Distillation(Ch.11). Molarity = moles of solute / Liters of solution. Concentration. ~How much solute is present in a solution compared to the solvent.. Molarity (M)- moles of solute per liter of solution. M = mol/L. 2.1 M AgNO.