Ionic order

to be taken in order to confirm its presence in the solution. In the second part of the experiment, qualitative methods were used again to determine the identity of the other cation in the original aqueous solution of the first part. The cation was to be either barium or calcium. In this part, a false positive…

The goal of this laboratory experiment was to determine the identity of an unknown ionic compound, unknown sample 3, through the substance’s chemical properties and reactivity. This compound was discovered in a landfill and we needed to know as much information as we can about how the chemical will behave in different situations so that the city will not be negatively affected by the chemical.2 Thus, we first needed to identify the unknown substance, determine some of its chemical properties and…

analytical chemists. Their goal was to identify an unknown compound that has been discovered in a landfill in their hometown. Once they identified the compound, they would then have to determine both the chemical and physical properties of the compound in order to inform the townspeople of any potential dangers. During the first week of lab, the group was given a small bottle containing an unknown white crystal-like substance. Their main goal of this week was to determine the identity of this…

properties as possible. Physical properties are those that can be determined without performing any changes to the identity of the substance. Chemical properties are properties that can only be determined after a chemical reaction is performed in order to change the identity of the substance according to “Physical”2…

State when the element already has a specific ON. Unlike with our previous examples, not all equations would already reveal the ON of each element. In actuality, equations would only be presented as is and we will be the ones assigning the ON. In order to properly delegate the ON of the elements or compounds, the following rules should be followed and observed. It is a general rule that the charges or the ON should be multiplied…

wire, called the Copper Cycle. The initial and final mass of the copper were measured and percent recovery was calculated to demonstrate that mass wasn’t created or destroyed. The balanced equations, balanced formula-unit equations, total ionic equations, net ionic equations, and half reaction equations were also determined for their appropriate reactions. In the first step of the cycle, a copper wire was dissolved by reacting it with 16 M nitric acid. A green solution was formed when the nitric…

the compound so we can let the people of the town know so it can be taken care of properly with or without further precautions to be taken. Another goal of this project was to devise the synthesis of the unknown compound. Experimental Design In order to determine the correct identity of our unknown compound, we first started with a couple preliminary tests, which include physical state and smell. The physical state test inquired a thorough overview of the compound. If our compound has a…

Abstract In this study equilibrium isotherms, kinetics and thermodynamics of ciprofloxacin on seven sediments in a batch sorption process were examined. The effects of contact time, initial ciprofloxacin concentration, temperature and ionic strength on the sorption process were studied. The Kd parameter from Linear sorption model was determined by linear regression analysis, while the Freundlich and Dubinin–Radushkevich (D–R) sorption models were applied to describe the equilibrium isotherms by…

Flavian Amphitheater, best known as “Colosseum”, is the Rome’s greatest arena which is built mainly for the purpose of holding large sports event. As history records indicate, the Colosseum can hold around 50,000 spectators at a time, which means the Colosseum is at least twice the size of the Oracle Stadium of Golden State Warriors. There are many fun facts about the Colosseum, according to the book “Art: a Brief History,” author Marilyn Stokstad described the cruel opening performance in…

The unknown compound was composed of small, white crystals as shown in picture 1. The compound was completely odorless, which was tested by simply smelling the compound. Picture 1 (Unknown Compound): The solubility test of the unknown compound determined that the compound was soluble in water (H2O). The other known salts that were tested that were also soluble were all of the sulfates and NaCl. These were the only salts tested, because before this experiment it was determined by the flame test…