File - IB CHEM NINJA
... consequence, macroscopic properties of the system (that is those that can be observed or measured, such as its colour, density, pH) are constant, even though on a molecular scale there is continual interconversion of reactants and products. The concentrations of the species at equilibrium will refle ...
... consequence, macroscopic properties of the system (that is those that can be observed or measured, such as its colour, density, pH) are constant, even though on a molecular scale there is continual interconversion of reactants and products. The concentrations of the species at equilibrium will refle ...
2. Electrodics
... As the conductivity is expected to depend linearly with concentration, it would appear that the molar conductivity does not depend on concentration. This is not true however; for weak electrolytes, which are not totally dissociated when dissolved, this is obvious, as the concentration of free ions ...
... As the conductivity is expected to depend linearly with concentration, it would appear that the molar conductivity does not depend on concentration. This is not true however; for weak electrolytes, which are not totally dissociated when dissolved, this is obvious, as the concentration of free ions ...
AT 25 °C - University of Bath
... Hence, at 450 °C, 108.24 kJ is evolved for each mole of the equation i.e 108.24 kJ is evolved per mole of nitrogen which reacts. Since, for a gas, volume ∝ number of moles, the 1:3 mixture is in the stoichiometric amount. At 0 °C and 1 atm pressure, 1 mole occupies 22.4 dm3. Thus, the total amount o ...
... Hence, at 450 °C, 108.24 kJ is evolved for each mole of the equation i.e 108.24 kJ is evolved per mole of nitrogen which reacts. Since, for a gas, volume ∝ number of moles, the 1:3 mixture is in the stoichiometric amount. At 0 °C and 1 atm pressure, 1 mole occupies 22.4 dm3. Thus, the total amount o ...
presentation source - Personal Home Pages (at UEL)
... Add H+ - process 1) shifts to the left with CH3COO- provided by process 2) Add OH- - then OH- + H+ H2O the H+ being provided by process 1) shifting to the right ...
... Add H+ - process 1) shifts to the left with CH3COO- provided by process 2) Add OH- - then OH- + H+ H2O the H+ being provided by process 1) shifting to the right ...
August 2007
... solutions had a concentration of 1 mol/L with respect to the metal ions present. The solution in one half-cell is initially an orange colour due to the mixture of the pale green Fe2+ ions and the orange Fe3+ ions. The other half is coloured blue due to the Cu2+ ions. Describe the colour changes the ...
... solutions had a concentration of 1 mol/L with respect to the metal ions present. The solution in one half-cell is initially an orange colour due to the mixture of the pale green Fe2+ ions and the orange Fe3+ ions. The other half is coloured blue due to the Cu2+ ions. Describe the colour changes the ...
2010 Chemistry Written examination 2
... a. The most common method for the industrial production of hydrogen is the steam reforming process, which requires high temperature, high pressure and a Ni catalyst. The equation for this reaction is CH4(g) + H2O(g) ...
... a. The most common method for the industrial production of hydrogen is the steam reforming process, which requires high temperature, high pressure and a Ni catalyst. The equation for this reaction is CH4(g) + H2O(g) ...
Strong and weak acids and bases
... ph of 1: strong acid poor conductor with pH of 6: weak acid fast reaction with magnesium: strong acid [H+] = 10 -10M: weak base [H+] = 10 -4M: weak acid neutralized 0.1M HCl quickly: strong base good conductor with pH of 13: strong base slow reaction with calcium: weak acid has a high -ΔH when react ...
... ph of 1: strong acid poor conductor with pH of 6: weak acid fast reaction with magnesium: strong acid [H+] = 10 -10M: weak base [H+] = 10 -4M: weak acid neutralized 0.1M HCl quickly: strong base good conductor with pH of 13: strong base slow reaction with calcium: weak acid has a high -ΔH when react ...
Problem 1 from 2007 form B AP exam
... The College Board: Connecting Students to College Success The College Board is a not-for-profit membership association whose mission is to connect students to college success and opportunity. Founded in 1900, the association is composed of more than 5,000 schools, colleges, universities, and other e ...
... The College Board: Connecting Students to College Success The College Board is a not-for-profit membership association whose mission is to connect students to college success and opportunity. Founded in 1900, the association is composed of more than 5,000 schools, colleges, universities, and other e ...
ap chemistry syllabus - West Essex High School
... Define pH and be able to interconvert between [H+], [OH–], pH, and pOH. Understand what is meant by strength of an acid or a base. Given the acid concentration, be able to interconvert between Ka and pH. Given the base concentration, be able to interconvert between Kb and pH. Calculate the percent i ...
... Define pH and be able to interconvert between [H+], [OH–], pH, and pOH. Understand what is meant by strength of an acid or a base. Given the acid concentration, be able to interconvert between Ka and pH. Given the base concentration, be able to interconvert between Kb and pH. Calculate the percent i ...
___Mg + ___O ___MgO • Mole : Mole ratio
... ‘runs’ out first in a chemical reaction. This is the chemical that determines how much of the product(s) are made. *The true amount of excess reactant is also determined by the limiting reactant. *Excess reactants: chemical substances that you have more than enough needed for the reaction. For examp ...
... ‘runs’ out first in a chemical reaction. This is the chemical that determines how much of the product(s) are made. *The true amount of excess reactant is also determined by the limiting reactant. *Excess reactants: chemical substances that you have more than enough needed for the reaction. For examp ...
Slide 1 - MrCard.Org
... given amt. of another material • catalyst – material that increases the rate of a reaction by lowering the activation energy • enzyme – a biological catalyst • inhibitor – material used to decrease rate of a reaction ...
... given amt. of another material • catalyst – material that increases the rate of a reaction by lowering the activation energy • enzyme – a biological catalyst • inhibitor – material used to decrease rate of a reaction ...
Unit 3: 1 Equilibrium and the Constant, K
... environmental processes that are reversible, construct an explanation that connects the observations to the reversibility of the underlying chemical reactions or processes. [See SP 6.2; Essential knowledge 6.A.1] Learning objective 6.2 The student can, given a manipulation of a chemical reaction or ...
... environmental processes that are reversible, construct an explanation that connects the observations to the reversibility of the underlying chemical reactions or processes. [See SP 6.2; Essential knowledge 6.A.1] Learning objective 6.2 The student can, given a manipulation of a chemical reaction or ...
Lab Handout
... Show all set-ups for each type of calculation: be explicit. If you have to perform the same calculation more than once you do not have to write the set-up for each one, but it should be clear as to which set-up correlates to which calculation. An example follows. The solubility experiment discussed ...
... Show all set-ups for each type of calculation: be explicit. If you have to perform the same calculation more than once you do not have to write the set-up for each one, but it should be clear as to which set-up correlates to which calculation. An example follows. The solubility experiment discussed ...
