Hydrogen Cyanide (HCN) is an extremely poisonous liquid discovered in 1782 by Carl Scheele, a Swedish chemist. HCN is very toxic because it stops cells from using oxygen properly thus causing death. Although HCN is a great solvent for salts, it cannot be used due to its high toxicity. Even though it is general stable, it has the capacity to combust in the company of basic substances such as ammonia or sodium cyanide.
What is its structure?
The structure of Hydrogen cyanide is H-C≡N. HCN is a linear molecule and has a triple bond between Carbon and Nitrogen which is strong whereas Hydrogen and Carbon are connected by a single bond making the bond weak. HCN as has a 180° angle.
What are its physical properties?
Molecular weight 27.0253 g/mol
Molecular formula HCN
Colour Colourless gas
chemical equation for this reaction and explain the scientific principle (statement) that requires the balancing of an equation to make it conform to reality.
Answer: C5H12 + O2 → H2O + CO2
Balanced – C5H12 + 8 O2 = 6 H2O + 5 CO2
2. Methane (CH4), ammonia (NH3), and oxygen (O2) can react to form hydrogen cyanide (HCN) and water according to this equation:
CH4 + NH3 + O2 HCN + H2O…
October 20, 2015
Deborah Blum, The Curious Case of the Poisoned Cows, June 29, 2012, Wired Magezine, http://www.wired.com/2012/06/cyanide-and-poisoned-cows/
On a farm in Texas there was a herd of eighteen cows that had been let out to graze one afternoon, after a few hours only three cows were still alive. After investigation it was discovered that Hydrogen cyanide was found in the cows and the grass and was labeled as the cause of death. Cyanide is naturally…
The lethal gas first in place in 1920s in Nevada. The first execution by this method was Gee Jon (1924) and contemporary Walter la Grand (1999). lethal gas replace the electric chair modest method. process by this method follow the same across the board. The offender is strap down to a chair in a airtight compartment. A long stethoscope is place to confirm the heartbeat and have a. Warden will signal the excursionists release sodium cyanide crystal to a container. A chemical reaction will…
to the gas chambers. Prisoners of the concentration camps suffered from starvation because they didn't receive the proper amount of nutrients and were only fed enough to keep them alive.
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Different Countries, Same Crimes
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Concentration Camps… the place that tore families apart, the place where Nazi’s torchered, ruined, and killed Jewish prisoners. It all started in the month of May 1949. There were 24 concentration camps. Auschwitz, the largest concentration camp, was the worst of them all because of the many gas chambers, poor living conditions, and the death marches that killed millions of Jews.
Most Concentration Camps contained one or two gas chambers. But Auschwitz had eight gas chambers. Auschwitz had…
For instance, commercial meters that produced by pharmaceutical companies contain potassium hexacyanoferrate (III) that measures the glucose level of blood on the patients.5 Iron has tripositive oxidation state in the complex and it has low spin, which cyanide ligand experiences a strong field in nature. The geometry of the complex is octahedral which causes the compound unstable once the cyanide ions dissociates in solution.5 The instability of the complex in solution is due to cyanide ions…
They can control biological processes. For instance,
• carboxypeptidase is an hydrolytic enzyme important in digestion, contains a zinc ion coordinated to many amino acid residues of the protein.
• Another enzyme, catalase, which is an well-organized catalyst for the decomposition of hydrogen peroxide. Because it contains iron-porphyrin complexes. In both cases, the coordinated metal ions are probably the sites of catalytic activity.
• Other coordination compounds in biological systems…
a compound composed of nitrogen and hydrogen, having the formula NH3. The ammonia molecule is formed by sp3 orbitals as it has a tetrahedral geometry and a trigonal pyramidal shape. Ammonia has an experimentally determined bond angle of 106.7°, and an a bond length of 101.7 pm. The nitrogen atom in the molecule has a lone electron pair, which gives the molecule a dipole moment and polarity. Ammonia’s lone electron pair makes NH3 a base, a proton acceptor, and gives it the ability to readily…