Separation And Qualitative Analysis Of Cations Lab

Reaction 2 - 1.Used a Beral- type pipet, added about 2mL (40 Drops) of 1M hydrochloric acid solution to a small test tube.

The main objective of this experiment is to differentiate between a physical change and a chemical change.

In reference to the analysis of anions, Table 1 shows that a precipitate was formed when our unknown was combined with HNO3 and AgNO3, thus indicating the presence of a chloride ion. Because our unknown did not form a precipitate due to HCl and BaCl2, separate, effervesce, or smell, we concluded that neither sulfate, nitrate, carbonate nor

The purpose of this lab is to test substances and to determine the physical and chemical properties of substances.

The objective of this experiment will be to combine various substances, liquids and metals, and to observe their behavior when they are combined. The types of reactions observed shall determine the nature of these reactions: physical or chemical.

The problem that was trying to be solved in this study deals with analyzing unknown solutions. In this particular case, a chemical company has several unknown solutions and to correctly dispose of them they need to know their properties. To figure out the properties several qualitative tests were performed throughout the study (Cooper 2012).

the ions of SO42-, CO32-, Cl-, and I-,identify them separately, and use the observation to identify the unknown.

Cut the potatoes using a cork borer approximately 5cm in length and 1cm in diameter. Using the appropriate tool cut the potatoes into cylinder form measuring the cylinders with a ruler.

To tube 3 a piece of litmus paper was placed into the tube. Then as is tube 2 concentrated HCl was added drop wise until the litmus paper indicated that it is acidic. No CO2 gas will evolve.

2) Decant the hydrochloric acid from the solid and then again rinse with 30 mL of distilled water and decant. Be careful not to lose any of the solid.

You might have to heat the test tube while you are adding the water to keep the solution hot. 4. After getting the solid to dissolve, allow the solution to cool slowly and look for crystals. After the solution has cooled to close to room temperature, cool it in an ice bath. Collect the solid using vacuum filtration and your Hirsh

The start of the experiment consisted of filling up four beakers with de-ionized water to 150 ml. After the beakers were filled to the appropriate amounts they were then labeled with the

The purpose of the experiment was to react cations with various substances labeled in the lab handout and create a flow chart that will allow me to identify unknown cations. Through my results I was able to develop a flow chart, which can help me to identify the cations I tested.

To start off the experiment, two burets were obtained and attached to a ring stand using a buret clamp. The spouts of the burets were opened, and distilled water was added to them until all of the water flowed through the tips. This was done to rinse the burets, and to make sure that they were working properly. Next, the burets were positioned so the tops of them were below eye level. Using a long stem funnel, about 5-10 mL of the solution was added to the correct buret. A small amount had to flow out, and the spouts were closed. Then, the buret was coated with the chemical being used. This was to avoid diluting the solution when it was actually added to the buret. Next, the spouts were opened to allow the rest of the solution to flow out.

Add 5mL of gastric juices (contains both pepsin solution and HCl) to test tube 3