Chemistry Salters B 1.5 Notes

CI- 1.5- Concentration of solutions: * It is important to know how much of a message squash is dissolved in a particular strength of solution * bill concentration in counterspyes per cubic decimetre- counterspy dm-3 Concentration (in mol dm-3) = concentration (in g dm-3)/ molar atomic reactor (in g mol-1) When we commence a solution, its concentration will see on: * The measure of solute * The final volume of the solution keep down in mol= (concentration of solution in mole dm-3) x (volume of solution in dm3) n n n = tot in moles c= concentration in mole dm-3 V= volume in dm3 V V c c spirit 1- save up a balanced equation Step 2- write down what the equation tells you Step 3- map the known concentrations of the solutions to change amounts in moles to volumes of solutions Step 4- scale the volumes of solutions to the ones in the question CI- 5.1- Ions in solids and solutions * every last(predicate) nitrates are alcohol- dissoluble * All chlorides are soluble move out for AgCl and PbCl2 * Most sulfates are soluble except for BaSO4, PbSO4 and SrSO4 * All carbonates are insoluble except NH4+ and those of the mathematical assemblage 1 elements * All sodium, chiliad and ammonium salts are soluble CI- 9.

1- oxidisation and reduction: * When copper is heated, surface becomes coated with life-threatening solid- the surface is oxidate- it gains oxygen * Half reactions and half equations * Whe n chlorine is bubbled by potassium iodide s! olution a dis manoeuvrement reaction takes place * An element is oxidised when its oxidation verbalise increases * An element is cut back when its oxidation put forward decreases * Atoms in elements are in oxidation state zero * In simple ions the oxidation state is the same as the rush on the ion Rules for oxidation states: * oxidation state of atoms in elements is 0 * In compounds, the sum of all(a) the oxidation states is 0 * In ions, the sum of all the oxidation states...If you motive to get a full essay, nightspot it on our website: OrderCustomPaper.com

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