Stoichiometry Lab Report

Question of the day: What is the stoichiometric ratio of reactions in the chemical synthesis of the (2, 4-pentanedianato) iron (III) complex ion?

Stoichiometry: A branch of chemistry that deals with the relative quantities of reactants and products in chemical reactions.

-If the copper metal is submerged in the silver nitrate solution then in reaction, a pure, solid (Ag) silver product is created with an excess of (Cu (NO3)2) copper (II) aqueous liquid because a single displacement reaction occurs where the balance equation is then

Stoichiometry is a very important part of chemistry. Stoichiometry refers to calculating the masses of molecules and their products . The reactants are usually given and stoichiometry is used to find the products of the equations as well balancing the equation. An example of this would be sodium chloride (NaCl). Stoichiometry will say that if there are ten thousand atoms of sodium and one atom of chlorine, only one molecule of sodium chloride can be made and that fact can never be changed.

3. Find the number of atoms of each of the substances involved in the reaction.

The purpose of the experiment is to cycle solid copper through a series of five reactions. At different stages of the cycle, copper was present in different forms. First reaction involves reaction between the copper and nitric acid, and copper changed from elemental state to an aqueous. The second reaction converted the aqueous Cu2+ into the solid copper (2) hydroxide. In the third reaction Cu(OH)2 decomposed into copper 2 oxide and water when heated. When solid CuO reacted with sulfuric acid, the copper returned to solution as an ion (Cu2+). The cycle of reactions was completed with the reaction where elemental copper was regenerated by Zn and Cu

Stoichiometry is a method scientists use to presume how two or more substances will react together. In order to do so successfully, the reactants are positioned on the left and the products on the right. The most important part of successfully

During these cases, one reactant is completely used up first and then there is an excess reactant or reactants. The goal of the experiment was to find the limiting reactant and the actual yield of the precipitate Cu3(PO4)2.3H2O, which is the maximum amount of product that can be formed. The limiting reagent can also be figured out before conducting the experiment by calculating the moles of the reactants in the solution. The reagent that produces the fewest moles of product is the limiting reactant and the other one is the excess reactant. In the experiment conducted above, moles of Cu3(PO4)2.3H2O from CuCl2 = 6.7x10-4 moles of Cu3(PO4)2.3H2O and moles of Cu3(PO4)2.3H2O from Na3PO4 = 7x10-4 moles of

Limiting Reactant Lab Abstract The purpose of this lab was to use stoichiometry (fixed molar ratios) to determine quantitatively how Copper (II) Chloride and metallic aluminum react, known as an oxidation-reduction reaction. By varying the quantities of CuCl2H2O and Al and observing the reaction we were able to determine the limiting and excess reactants, and were also able to use stoichiometric calculations to determine the theoretical yield of Cu and then compare it to the actual yield of Cu to determine the percent yield of the reaction, which was found to be 22.5%. The percent yield of this experiment was less than desirable due to the fact that not enough Al was added to fully react all of the Cu. Using stoichiometry it was determined

The lab is for making a soda that would taste good, but also includes the method of using stoichiometry. The lab has four materials that needed to be added together to make the fizzy soda. The four materials that need to be added where, water, Koolaid, Citric acid, and baking soda. In this lab it has nine steps to take to find the perfect soda, however, it is hard to decide what to add more of and what to have less of in the soda. The lab gives step to follow to find out which soda would taste better, if taking out certain ingredients to the soda.

Stoichiometry has many uses in the real world. In the chemical industry and in professional scientific experiments, scientists use stoichiometry to save money. Scientists use stoichiometric calculations to determine the amount of a substance they need to purchase for a specific reaction. There are four possible reactions that can occur when sodium bicarbonate thermally decomposes. In this lab, stoichiometry was used to find out which balanced chemical equation out the four best represents the thermal decomposition of sodium bicarbonate.

The initial mass of copper was recorded, and then compared with the mass of recovered copper at the end of the experiment. The reactions that occurred during this lab include; Metathesis reactions, which are biomolecular reactions that occur in water, Redox reactions or reduction-oxidation reactions in which electrons are transferred between reactants, Single displacement reactions, which are redox reactions where a metal replaces a metal cation from its salt, Combination reactions, which occur when two or more reactants produce on product and Decomposition reaction, which occur when one reactant produces two or more products. Table of Reactions Cycle Step # Equation Reaction Type #1 Cu(s )+ HNO3(aq)Cu(NO3)2(aq)

A chemical reaction is when substances (reactants) change into other substances (products). The five general types of chemical reactions are synthesis (also known as direct combination), decomposition, single replacement (also known as single displacement), double replacement (also known as double displacement), and combustion. In this lab, the five general types of chemical reactions were conducted and observations were taken before, during, and after the reaction. Then the reactants and observations were used to determine the products to form a balanced chemical equation. The purpose of this lab was to learn and answer the question: How can observations be used to determine the identity of substances produced in a chemical reaction?

2. (5 pts) List and explain the names and affiliations of the various characters/stakeholders in this story – I’m looking for us to use the story to map out the complexities that are generally associated with solving public health puzzles – the stakeholders you list and explain here should apply to many of the cases we consider going forward.

In the experiment I performed it was proven that, the moles of a solute, the volume of the solvent, and the molarity of an aqueous solution share a mathematical relationship. Solutions, solutes and molarity are all terms that are crucial to chemistry. A solution is defined as a liquid mixture in which the solute is distributed into the major component, and a solute is defined as the minor component within a solution. The molarity of a solution is the number of moles of solute per liter of solution and it is used to express the concentration of a solution. Both the solute amount and the solution volume can be determined in experiments to aid finding the solution concentration or molarity of a substance that they are included in. I state confidently