As a young man, Ira Remsen was intrigued by science, leading him to perform an experiment that he saw in a textbook. This experiment involves a series of chemistry topics, triggered by the reaction that occurs between nitric acid and copper. The experiment involves an elevated flask, plug, a hose, and a container of water the set up is diagrammed below: Initially, place a copper penny in the flask then, standing by with the hose and plug, pour nitric acid into the flask and immediately seal. A green liquid and red gas will form inside the flask, until the pressure decreases, the water is forced up into the flask from the container below. When the water enters the flask, it neutralizes the solution in the bottom and dissolves the noxious gas. The final product is a blue liquid. There are many principles that are demonstrated by this experiment. …show more content…
The result is an exothermic reaction that dissolves the copper. As the copper is oxidized, there are two products: copper(II) nitrate solution and nitrogen dioxide. These can be seen the image below, the green liquid is the copper(II) nitrate solution and the red gas is nitrogen dioxide. 3Cu(s) + 2NO –(aq) + 8H+(aq) → 3Cu2+(aq) + 4H O(l) + 2NO(g) 32 The nitrogen oxide reacts with oxygen to create the nitrogen dioxide. 2NO(g) + O2(g) → 2NO2(g) As the NO2 gas pressure increases, it bubbles through the basic (pink) solution in the cylinder. Nitrogen dioxide is very soluble in water. As it dissolves, it reacts with the water to form nitric acid, which lowers the pH of the solution as it is
Emma Carruth Period 2 25 October, 2015 Dr. Frank Project Proposal Researchable Question: How does a circuit connected to a pump regulator, which models an artificial pancreas, affect the regulation of blood sugar over time? Experiments: Using an acidic solution (Vinegar) to mimic the high blood glucose levels and a basic solution (Baking Soda) to mimic the insulin. A pump, that is connected to a cricut board, will turn on and off automatically based on how high the glucose levels are and it will add the basic solution to the acidic solution so that it will return the glucose levels to normal. I will see if and how the pump transfers the basic solution to the acidic solution with the starting levels of the vinegar in order to neutralize the “blood
Ocean Acidification Formal Laboratory Write-Up Background: Around the coast of Ischia Island, the water is being saturated with carbon dioxide. Chalk at the bottom of these waters is being boiled by nearby volcano, Mount Vesuvious, thus creating streams of bubbles coming u to the surface. With the chalk coming up to the surface, it is acidifying the water around it. This ocean acidification can cause tiny sea creatures, which normally absorb carbon dioxide, to be exposed to too much carbon dioxide that will in turn have a chain reaction effect in the food chain.
The Single Replacement Lab of Iron Replacing Copper in a Copper (||) Chloride Solution Lab The purpose of this lab was to help the students further their understanding of single-replacement chemical reactions, and to have a hands-on experience with it in order to practice equation writing and stoichiometry functions. In this experiment, an iron nail was placed in a solution of Copper (||) Chloride that was dissolved with water in a baby food jar. Observations were taken over the next three (schools) days.
It dissolves completely in water quicker than sodium. Alkali metals tend to react violently or explosively with the water; however its reaction with methanol is gentler. The reaction of sodium or potassium with methanol caused a fizzing (gas released) until the metal
The purpose of this experiment was to observe various reactions including copper at different stages of the cycle and to identify
Benzyne Formation and the Diels-Alder Reaction Preparation of 1,2,3,4 Tetraphenylnaphthalene Aubree Edwards Purpose: 1,2,3,4-tetraphenylnaphthalene is prepared by first producing benzyne via the unstable diazonium salt. Then tetraphenylcyclopentadienone and benzyne undergo a diels-alder reaction to create 1,2,3,4-tetraphenylnaphthalene. Reactions: Procedure: The reaction mixture was created. Tetraphenylcyclopentadienone (0.1197g, 0.3113 mmol) a black solid powder, anthranilic acid ( 0.0482g, 0.3516 mmol) a yellowish sand, and 1,2-dimethoxyethane (1.2 ml) was added to a 5-ml conical vial.
Standard Sodium hydroxide solution is the alkaline solution that will be used to titrate with soda water as it is a common solution that can be easily found in an ordinary school laboratory. It is a strong base. Carbonic acid is a weak acid which will react with a strong base to form a basic (pH > 7) solution. When Phenolphthalein is added to Soda water, the resultant solution is colourless. After titration with a strong base (sodium hydroxide), the solution will turn to pink as the solution becomes
Introduction: The purpose of this experiment is to demonstrate the different types of chemical reactions, those including Copper. There are different types of chemical reactions. A double displacement reaction is a chemical process involving the exchange of bonds between two reacting chemical species. A a decomposition reaction is the separation of a chemical compound into elements or simpler compounds and the single-displacement reaction is a type of
Then the balloon is lifted up so that the baking soda runs into bottle to react with the vinegar inside. Immediately the balloon is inflated by the carbon dioxide formed. The baking soda is kept constant when the experiment is repeated for another different amount of vinegar. Results/Findings When sodium bicarbonate and vinegar mix,
Once dissolved, the CO2 reacts with the water(H2O) to form a chemical compound
The pH would be closer to 7 and produce water and an ionic compound ending the pollution and protecting the wildlife in the environment. Neutralization has been used to clean up our lakes from acidic or basic
In order to investigate the effect of cobalt additive on the phosphate coatings, the surface morphology of these coatings was evaluated. Scanning electron microscopy images for the samples containing cobalt additive are shown in Fig. 1. Based on the illustrated pictures (1-a), phosphate coating without additive has more cracks than the other samples.
Laura Paez Lab 4: AAS; Creating a Standard Curve Two Different Ways Chemistry 4440 Harshani Rathnaweera September 22, 2014 ABSTRACT In this experiment the Varian 220 AAS instrument was used as an introduction to understanding the Atomic Absorption Spectroscopy (AAS) instrument and how it works. The experiment consisted of making standard solutions that contained manganese (Mn) and 5% concentrated nitric acid (HNO3) and measuring them for absorptions in order to use that with a calibration plot and find the concentrations of two unknowns. Two unknowns were also measured along with a CAL ZERO used as the blank. The standards were diluted to fit within the Mn linear range of 2 to 30 ppm in atomic absorption spectroscopy.
The products will always be water and a salt. The balanced reaction equation for this experiment is the reaction below (Enthalpy of neutralization, 2018). 〖NaOH〗_((aq))+〖HCl〗_((aq))→〖NaCl〗_((aq))+H_2 O_((l)) In aqueous solutions the substances that are involved will experience dissociation, which changes the ionization state of the substances (Neutralization, 2018). When an acid is dissolved in water the covalent bond between the electronegative atom
An irreversible, spontaneous and homogeneous reaction was researched at an ambient temperature of 22.7°C. The specific reaction is given in Equation 1. CH_3 COOCH_2 CH_3+ NaOH →CH_3 COONa+CH_3 CH_2 OH (1)