Ion

The goal of this laboratory project was to identify the unknown compound and thoroughly investigate it to find its physical and chemical properties which reveal the way it might behave. This was done by performing many anion, cation, solubility, and pH tests to help us to determine the identity of our compound. The list of salts in the lab manual made it possible to narrow down the possibilities of our unknown compound. After identifying the compound, the goal was to synthesize the unknown…

Salts and molecules have different properties because salts are ionic compounds and molecules are covalent compounds. Justification: Salt is an ionic compound. An ionic compound is formed by ionic bonding between ions of opposite charge. Sodium Chloride and Potassium Bromide are both salts that have an ionic compound. Both elements have the properties of salts which include soluble in water, conductive, and a relatively high melting point. Molecules and Sugar molecules are covalent compounds…

solution has a sulphate ion present (4). Taking one of the remaining test tubes, add 0.1 mL of BaCl2 into the solution and mix well. HCl Test Fig 5. If HCl is present in the solution, bubbling and a strong smell of ammonium should be present. Using the remaining test tube, add 0.1 ml of HCl into the solution. Record your findings. Record Conductivity using Conductivity Meter. Flame Test Fig 5. Flame Tests are used to identify the presence of a small number of metal ions in a compounds.…

will attract other charged particles such as ions and other polar molecules such as glucose. Therefore chemical reactions can take place in solution since these chemicals dissolve in water. For example when you pour a salt (NaCl) into a cup of water, the molecule NaCl which is bonded ionically will separate into sodium ion (Na+) and chloride ion (Cl-). This is because the negatively charged oxygen atoms in the water molecules attract each of sodium ion and the positively charged hydrogen atoms…

Different solvents need different amounts of energy to break their bonds, as they are made of different ions. • Temperature of the water. The higher the temperature of the water at the start, the bigger the energy changes in dissolving when it is exothermic. The factor that I will be looking at for this experiment is how the mass of solvent effects the temperature…

and creates variable charges. These are created from the dissociation of the hydrogen ion in organic matter, and hydrogen ions being added and removed of the alcohol (OH) group on mineral surfaces. The amounts of charge changes due to the pH, as the concentration of hydrogen and hydroxide ions determine the pH. This relates to soil solution acidity. How acidic the soil is shown by the concentration of hydrogen ion there are within the solution. Therefore, the higher concentration of OH- will…

the sulfate test. During the sulfate test, the solution became cloudy, the unknown substance did not completely dissolve, and there was evidence of a white precipitate present. These two tests determined that there was a possibility that the sulfate ion (SO ) was present in the unknown compound. The cation test resulted in the appearance of a pale violet color within the flame. This color meant that the unknown compound could contain the potassium cation. These findings lead to the consensus…

identity of an unknown salt (#3) using ion-exchange chromatography by analyzing the inorganic salts of the unknown salt, which can be examined by acid-base titration using ion-exchange resin. The stationary phase is made up of acid groups which will attach to the resin, which is then rinsed down the column with water. The mobile phase contains the inorganic salt dissolved in a solvent, which is then added to the column. As it goes down the column, an exchange of H+ ions and cations occur. The…

Chemistry relates to everything you could possibly think of on the planet. They relate to every object and every natural event and hazard. Such as sinkholes, there a very intimidating and scary event that could happen at any moment . Sinkholes occur when the limestone beneath us breaks away by acidic rain and eventually the ground gives creating an open hole in our earth`s surface. Chemistry can relate to chemical reactions, one of the chemical reactions that occur is the creation of acidic rain…

used was the unknown due to the need to test its physical and chemical qualities. When a solution of the unknown was made, 1.000 g of the unknown and 1.0 mL of water was used to make it. To test for the possible ions, 1.0 mL of silver nitrate and 1.0 mL of nitric acid were used for the ion test. Ammonium chloride and calcium chloride were the two compounds that were tested on to see if either were the unknown compound. After obtaining a balanced chemical equation that would allow for the…