Chem 112 Technical Abstract

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.

1. The first experiment is Preparation of a Cobalt Amine Bromide Product ; Synthesis #3 was used to create the compound. Added 5 grams of cobalt carbonate to 20 mL of hrdrobromic acid in a beaker. Noticied a slight color change to dark purple. Solution frothed after it settled I mixed in 15mL water and

The purpose of this semester long experiment was to determine an unknown organic acid. An organic acid is an organic compound with acidic properties. A base reacts with acids to form salts. Titrations are used to determine the concentration of unknown substances. The purpose of the KHP experiment was to determine the molarity of NaOH. HCl titrations are mainly to check technique and used to verify the molarity of NaOH solution. The hypothesis is that this acid is C4H3OCOOH.

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

Society relies heavily on metals in nearly every aspect of life; however the corrosion of such metals has become a costly and very prevalent issue worldwide. Large amounts of energy, time and money has been poured into

Plasma is often found in areas of the planet/universe where extremely high heats are possible and gases exist to help create the plasma.

The volume of carbon dioxide gas produced from a reaction was measured in order to determine what carbonate sample was used. A gas assembly apparatus was used to capture the gas from a reaction between an unknown carbonate and 6M hydrochloric acid; three trials were performed. The mass of the unknown carbonate was determined, and the reaction occurred in a test tube. The volume of gas produced by the reaction was measured, and the partial pressure of carbon dioxide was calculated after the partial pressure of water vapor was determined using Dalton’s Law of Partial Pressures. The percent mass of carbon dioxide gas was then calculated, and the average mass percent was compared to the table of known carbonates. It was concluded that the unknown carbonate sample used in the reaction was magnesium carbonate.

Safety Laboratory issues: 1. Tables not clean of clutter. 2. Furniture not neatly arranged. 3.

In part, B the liquid that was decanted in step 3 was to be tested for the presence of either the presence of Barium or Calcium. The solution was mixed with Ammonium hydroxide and then it was tested to make sure the solution was basic. Ammonium carbonate was then added and the solution was heated, cooled, centrifuged, and the liquid was discarded. The precipitated was washed with water and centrifuged.

When preparing for work I begin the night prior by setting an alarm to wake me up early to give me plenty of time to prepare properly, along with lying out the clothing and additional items I shall need for the day to come. After I have woken up I walk out to make breakfast for some fuel to aid in pushing me through the day, followed by a thorough tooth brushing to remove any reminents of food in my teeth along with any hints of bad breath. Soon following, I shall clothe myself in my work attire and make sure all additional items are ready for me to grab and leave the house in a reasonable timeframe to ensure less likelihood of arriving late.Next I shall drive down a predetermined route which shall allow me to arrive the quickest, while also driving safely to prevent any possible accidents on the way to my workplace. Finally, I shall pull into a parking space, the first one I find regardless of location if all others are full, and head inside to

Ultra Chem SFV cannabis strain can be grown indoor and outdoor. Flowering time is 8 weeks. It will grow buds that are compact and dense and the average yield it gives will be compensated by buds with strong THC content. The buds will emit a skunky and fuely scent and the taste will have hint of the same with sour undertones

Elimination tests were done on each of the five cations, "K" ^"+" , "Z" "n" ^"2+" , 〖"Cu" 〗^"2+" , and 〖"Co" 〗^"2+" to distinguish them from one another. First, five centrifuge tubes were obtained and labeled, one for each cation solution. After the centrifuge tubes were labeled, ten drops of each cation solution were added to their appropriate tube. In the first elimination test, Metal Hydroxide Test, 6 M NaOH was added by drop to each centrifuge tube until a precipitate was formed in the solution. The cation solutions that formed a precipitate, an extra ten drops of 6 M NaOH was added to test for amphoteric species. In the second elimination test, Ammonium Hydroxide Test, five centrifuge tubes were labeled and ten drops of each cation solution were added to their specific tube. 15 M 〖"NH" 〗_"4" "OH" was added to each tube until a precipitate formed or the color of the cation solution changed. In the confirmation flame test of the five cations, again five tubes were labeled and

Chem 213 is the stuff of nightmares for most second year students, I often wake up in a panic thinking about it. The course is known for being difficult (an understatement) because of the amount and complexity of the material. Upper years often describe it as a “GPA Killer”. Thankfully, my classmates and I do not have to suffer alone, we have our amazing TA, Walid, there to help us. He currently runs not 1, not 2 but 3 tutorials on his own. These tutorials are not mandatory nor required, so he doesn't even have to organize them! He does it on his own time to help us. He even organized a tutorial during reading week when he could’ve taken a break. We know how busy he is with his research, being a TA and acting as the Graduate Chemistry Society’s

An electron in a permitted orbit has a specific energy and is in an allowed energy state. An electron in an allowed energy state will not spiral into the nucleus.