Chemical imbalance

important to understand a few different concepts such as the distinguishing physical properties of a chemical substance and how these physical properties can be analyzed. Physical properties of a chemical substance include water solubility and melting point, both of which are used to pursue identification of the unknown component of Panacetin. Water solubility is a distinct physical feature of chemical substances that can lead to an increase or decrease in product recovered. For example, the water solubility

The purpose of experiment three was to identify the unknown component in the drug Panacetin. The use of physical properties can help identify unknown compounds and estimate the degree of their purities. In this experiment, solubility in boiling water and melting point were used to determine if the unknown was acetanilide or phenacetin. Since both compounds are soluble in boiling water and insoluble in cold water, recrystallization was used to remove any impurities from the solid. In experiment

Introduction: The purpose of this lab will be to determine the percent water in an unknown hydrate, determine the moles of water present in each mole of the unknown substance, and to use the molecular mass to find the empirical formula of a hydrate. In this lab and unknown hydrate will be heated two separate times over a Bunsen burner to remove as much water from the substance as possible, before and after heating the crucible the masses will be calculated and recorded for future reference. To participate

he experimental variable in this experiment was the changing number of Alka Seltzer tablets that were put into the 250mL beaker of vinegar. Some of the control variables in this experiment were that the same beaker and thermometer were used for each trial, the same type of vinegar and Alka Seltzer were used for each trial, and the same amount of vinegar. The original Hypothesis was that more Alka Seltzer would increase the temperature of the vinegar was not correct. After analyzing the data it

produces water, carbon dioxide, and the citrate ion. Equation 1 shows the balanced equation for the reaction, which can be expressed by, C_6 H_8 O_7 (aq)+ 3NaHCO_3 (aq)→ 3H_2 O(l) + 3CO_2 (g) + Na_3 C_6 H_5 O_7 (aq) (1) The evidence that this is a chemical reaction and not a physical change is that gas can be seen bubbling to the surface when the Alka-Seltzer dissolves. Moreover, from the data in table 1 it can be seen that the reaction occurs sooner with an increase in temperature. This is because

Purpose Statement: In this experiment, we will determine the chemical formula of an unknown hydrated copper chloride compound which is composed of copper and chlorine. We will use stoichiometry, which is the relationship between quantities of materials in a chemical reaction, to determine the chemical formula for a compound. We will use the mole to mole conversion to find the formula of a hydrated compound with the general formula CuxCly.zH2O. We will convert the masses of water, copper, and chlorine

Stoichiometry with Kitchen Chemistry By: Meena Roberts Discussion Section: Wednesday at 8:30 Objective: The purpose of the lab was to see how much carbon dioxide was produced in reaction. Procedure: Measured mass of balloon, mass of NaHCO3 and container, mass of container after NaHCO3 was removed, and mass of NaHCO3 in balloon on digital scale in grams(g). Calculated the moles of NaHCO3 in the balloon. mass of 〖NaHCO〗_(3 ) in ballon×(1 mole)/(84.01g) Poured vinegar into graduated cylinder and

Within this experiment a type of cycloaddition reaction was performed, called Diels-Alder reaction. This type of reaction involves both a 1,3-diene and an alkene, called the dienophile in this reaction. Within this reaction two new sigma bonds were formed at the 1 and 4 carbon atoms of the diene. Two other pi bonds are also formed simultaneously with the sigma bonds. Due to this concerted nature of the reaction the diene must be able to adopt a s-cis configuration, making the reaction stereospecific

one was (I) to pick between part A or part B. (II) weigh out the part that you picked. And lastly (III) let the chemicals precipitate when adding distilled water. The methods that were used during the second part of the lab was to calculate how much of the compounds that you need than to add 5ml distilled water to both and combine together. What was found in this lab was which chemical compound from the product of the equation is the limiting reactant.

During the preparation of the, “Turning Pennies Green”, lab, students were asked to perform an experiment at home. The lab demonstrates what the effects of chemical and physical changes are. Students were asked go home, put two pennies in separate bowls, and label one bowl cup A, water and cup B, vinegar. Then, they were asked to place paper towels in the bowl. For cup A, water was to be poured in, but just enough to wet the paper towel inside, so the penny was not submerged. The same was asked