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 ...
The catalytic decomposition of Hydrogen peroxide
... reaction proceeds, until the rate of reaction is 0. As Oxygen and water are produced the water lowers the concentration of the Hydrogen peroxide present. This lowers the rate of reaction due to the lower concentration (as explained in the variables section). Once a Hydrogen peroxide molecule ...
G.C.S.E chemical reaction - rates of reaction between sodium thiosulphate solution and hydrochloric acid.
... hydrogen gas. It will produce metal chlorides from basic compounds such as calcium carbonate or copper (II) oxide. It is also used as a simple acid catalyst for some chemical reactions. The Investigation To do my investigation I will use the following apparatus: Conical flask ...
Massing Grown Crystals
... substances are equally soluble in every solvent. For example, salt dissolves in water but not in gasoline. Wax dissolves in gas but not in water. An acid that i am using un this project is dilute sulfuric acid. Acids are a kind of water solution. This acid ...
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 elements, writing on each card the element's: a) atomic weight, b) valence (its degree of combining power), and c) other chemical and physical properties. He arranged the cards to try to find a pattern, unaware of ...
Climate Project
... El Niño waters brought mackerel to the west coast of Vancouver Island. These fish devoured juvenile salmon, and ate into the salmon stocks of the west coast of the island. In 1958, following the 1957-58 El Niño, warm waters allowed the Japanese ...
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
... particles it initially held, then I myself must not be the same self (substantively) because I no longer hold the same subatomic particles I initially held either. Aside from the substantive mode of ...