When you put a sample of N2O4, a colorless gas, in a closed container at 100C a reddish-brown color starts to show. This is due to NO2 formed by the decomp. of part of the original substance. The forward and reverse reactions are taking place at the same rate. The concentrations of species present remain constant with time. These concentrations are independent of the direction from which equilibrium is approached. The equilibrium constant K is where the partial pressures in atmospheres, is a constant, independent of the original composition, the volume of the container, or the total pressure.…
Phosphorus forms a wide range of sulfides, where phosphorus can be P(V), P(III) or other oxidation states. Most famous is the three-fold symmetric P4S3 used in strike-anywhere matches. P4S10and P4O10 has analogous structures.…
Purpose: The purpose of this lab is to calculate the atomic mass of “pennium” using pennies made before 1982 and pennies made 1982 or after.…
Please complete the following photos over the summer. Remember you are creating a design portfolio centered on the principals of design using photography as your media. You need to choose 70 of the 100+ from the list below and shoot a photo a day. Now remember this is more than just a snap shot take your time setting things up and challenging yourself compositionally.…
10. From its atomic number of 15, it is possible to predict that the phosphorus atom has _____.…
The half life of 90Sr is 29 years. What fraction of the atoms in a sample of 90Sr would remain 175 years later?…
Metals are mined from ores, considering yield to see if it is economically viable for a business to mine at a particular site. However, due to environmental damage and global warming, recycling has increased globally to create a sustainable future. By examining the cost and energy expenditure of recycling and extracting aluminium we can understand why recycling is a better choice than extracting metal from its ore.…
You must produce a periodic table which has groups and periods. You must also explain the atomic structure by giving at least two examples of two elements.…
The human’s impact on The Phosphorus Cycle would have to be the Phosphorus that is mined in several locations around the world and is then made into fertilizers, animal feeds, detergents and other products.…
1. Phosphate group :- Composed of one atom of phosphorus surrounded by four oxygen atoms.…
The Element: Chlorine General Information We researched the chemical element known as chlorine. Chlorine has an atomic number of 17 and an atomic weight of 35.453. It has a valence number of 3. The element has 3 energy levels. Chlorine exists as a greenish-yellow gas at normal temperatures and pressures.…
Bismuth falls under the pnictogen family. This family consists of elements that have five electrons in the outer electron level. These elements are nitrogen, phosphorus, arsenic, antimony, and Bismuth. Bismuth is a Crystalline metal. Being a crystalline metal Bismuth is a solid state of matter. Bismuth has an Atomic…
In the modern periodic table, elements are arranged from left to right in rows, called periods, by increasing atomic number, and from top to bottom in columns, called groups, based on similar chemical properties.…
1. Weigh about 3 grams of fertilizer and dissolve it in about 50cm3 of distilled water in a 250cm3 beaker.…