Chemistry Essays, Research Papers & Term Papers (1,259) essays
Chemistry essays:
Establishing the concentration of a limewater solution
... Pipette 25cm3 2) Volumetric flask 500cm3 3) Conical flask 250cm3 4) Burette 5) White tile 6) Clamp and stand 7) Indicator (methyl orange) 8) Limewater (250cm3 with 1g dm?3 of calcium hydroxide) 9) Hydrochloric acid- standard solution (conc. 2.00 mol dm?3) 10) Distilled water ...
REPORT ON LINUS CARL PAULING: Chemsitry Quiz , Rebellious and a peace Keeper
... medical research. This man was a peace activist whose advances changed the way we think and live. BACKGROUND: Linus Pauling was born on the 28th of February 1901 in Portland, Oregon, to a self-taught druggist, Herman Henry William Pauling, and Isabelle Pauling ...
G.C.S.E chemical reaction - rates of reaction between sodium thiosulphate solution and hydrochloric acid.
... variables change the rate of reaction is called the collision theory. For a reaction to take place, the particles of the substances that are reacting have to collide. Only a certain fraction of the total collisions cause chemical change; these are called "successful collisions ...
The catalytic decomposition of Hydrogen peroxide
... of a reactant typically increases the rate of reaction . Altering the concentration of a liquid changes the number of molecules present in a given volume allowing for more production of products. As explained in the introduction, if there is a higher concentration there will be more collisions ...
Massing Grown Crystals
... changes immensely. Liquids take up about 10 percent more. space than a solid. When ice melts, the ice stays at 0 degrees Celsius until it all has melted. Water is commonly found in the three states of matter, solid ice, liquid water, and gaseous water ...
Determining the concentration of a limewater solution.
... equipment such as a pipette for measuring the amount of distilled water to go in each boiling tube rather than a measuring cylinder because it provides a far more accurate scale which would reduce the percentage errors of each reading. Apparatus such as a burette and pipette ...
The Life of Dmitry Ivanovich Mendeleyev.
... of the next elements before they were discovered. Other investigations of his include the study of the chemical theory of solution, the thermal expansion of liquids, the nature of petroleum, and others. His story begins in Tobolsk, a Western city in the vast region of ...
Climate Project
... develops every winter becomes even stronger, and increases the strength of winter winds from the south. These winds carry warmer water northward along the British Columbia coast. In the past, warm El Niño waters have altered the migration routes of Fraser River sockeye salmon ...
What factors can affect rate of reaction?
... rate of reaction will also increase positively. 2) Concentration. This is the factor that we will be changing in our experiment. Concentration is the measure of how much of a given substance there is mixed with another substance. This can apply to any sort of chemical ...
John Locke Personal Idenity
... structure, change places, and recreate the same molecular structure. The consequence of ... self (substantively) because I no longer hold the same subatomic particles I initially held either. Aside from the substantive mode of ... the substantive, is John Locke 's theory of personal identity. Locke claims ...