8/14/2013 Complex Ion Equilibria • The dissociation of complex ions can be represented similarly to equilibria. Simultaneous Equilibria: Solubility Product Constants and Complex Ion Equilibria → Ag + + 2 NH Ag(NH3 ) +2 ← 3 [Ag ][NH ] = [Ag(NH ) ] 2 + Kd 3 + 3 2 → Cu 2+ + 4 NH Cu(NH 3 ) 24+ ← 3 [Cu ][NH ] = [Cu(NH ) ] 4 2+ Kd Complex Ion Equilibria 3 2+ 3 4 3 Complex Ion Equilibria • A metal ion coordinated to several neutral molecules or anions forms compounds called complex ions
Premium Ammonia Silver Solubility
which contain replaceable hydrogen. This is because when the hydrogen is replaced they are acting like an acid. E.g. sodium hydrogen sulphate (NaHSO4). •The method chosen to prepare a salt depends on its solubility. •Solubility depends on the combination of positive and negative ions. SOLUBILITY RULES SOLUBLE INSOLUBLE 1 All nitrates All carbonates except for sodium‚ potassium and ammonium carbonates 2 All chlorides except for silver chloride and lead (ii) chloride All sulphides except for
Premium Ammonia Sodium Ion
Experimental The chloride ion (Cl-) is an important anion found in solids and solutions. In this experiment‚ the amount of chloride ion in an unknown sample J (NaCl + KCl mixture) of water using the Mohr method is determined‚ which relies on the solubility differences of two anions and the titration endpoint of a precipitate. The net ionic reaction during the titration is as follows: Ag+ + Cl- → AgCl(s) The Ksp for AgCl is 1.8 x 10-10 and that for Ag2CrO4 is 1.2 x 10-12. Thus‚ as
Premium Titration Ion Silver
dyes (pigments) that when place on porous paper are dissolved in a solvent by capillary action. When the pigments (solutes) are dissolved in the solvent (water & alcohol mixture) they move through the paper at different rates depending on their solubility. The more soluble the pigments are the faster they will move through the paper. Paper chromatography is most commonly used to separate pigments‚ dyes and inks. In forensics‚ paper chromatography is used in crime scene investigation and in sequencing
Premium Solubility Color Pigment
(making up the precipitate) should be considered. In gravimetric analysis‚ relatively few crystals are preferred over many small ones. Experimentally‚ it is found that particle size is affected by experimental variables such as precipitate solubility‚ reactant concentrations in the precipitating solution‚ the rate of addition and mixing of reactants‚ and the temperature. Mathematically‚ it is reflected in the Von- Weimarn equation‚ which states that R=Q-SS
Premium Solubility Ammonia Solid
concepts of solubility and conductivity of a substance were studied as well in this experiment helping us understand how the various molecules and its ions react in solvents. An example of this process is when calcium chloride dissolved in water. The polar water molecules attracted the oppositely charged Ca2+ and Cl- ions as calcium chloride is a polar molecule as well. The ions brake apart as the water attraction is greater than the ionic bond within the calcium chloride molecule. Solubility is also
Premium Chemical polarity Solubility Water
Step 1: Pb (NO3) 2 (aq) + CaCl2 (aq) PbCl2 (aq) + Ca (NO3) 2 (aq) (double displacement reaction) According to the solubility guidelines lead (II) chloride (PbCl2) is a possible precipitate. This is because even though most chlorides are soluble‚ lead chloride is considered insoluble (p.2‚ Lesson 17). Step 2: PbCl2 ↔ Pb2+ + 2Cl- Q = [Pb2+] [Cl-] 2 Step 3: Ksp = 1.2 x 10-5 (from table 17.1‚ p.5) Step 4: V2 = 20.0 mL (volume of Pb (NO3)2) + 45.0 mL (volume of CaCl2) = 65.0
Premium Solubility Hydrogen Solid
I. DISCUSSION: Differences between organic and inorganic compounds based on structure‚ type of bond and some common physical and chemical properties. II. PROCEDURE: A. SOLUBILITY 1. To 2 mL. each of the following solvents: water‚ ethyl alcohol and ether‚ add a pinch of benzoic acid and shake.
Premium Oxygen Water Chemistry
determine the products. All you need to do is pair the positive parts of the compounds with the other compounds negative part. Once you find the products you can determine their phase of matter by using Table H. You can also use Table F to determine the solubility guidelines for aqueous solutions. If the product falls under soluble or exceptions to insoluble it is in the aqueous stare. If the product falls under insoluble or exception to soluble it is a precipitate. Once you have completed those steps you
Premium Chemistry Solubility Solid
Chem 1212L-345 Lab report Experiment #20: Temperature Change and equilibrium Woochul Jin Jeeyoon Kong‚ Alla Asmerom Hagos 03/22/2011 Woochul Jin Chem 1212L-345 Experiment #20 Lab Report Temperature change and equilibrium Introduction: In this experiment‚ we will find out how the variation of the value of an equilibrium constant with temperature can be used to determine the enthalpy (heat)‚ entropy (randomness)‚ and free energy (G) changes associated with the system in question
Premium Thermodynamics Temperature Solubility