Essays Tagged: "h20"

Greenhouse Effect

e of about 15 degreesC (60 degrees F). Without them the average would be below the freezing point ofH20. The gases have this effect because as incoming solar radiation strikes thesurface, the surface ...

(2 pages) 124 0 3.6 Nov/1996

Subjects: Science Essays > Environmental Science

Magnetic Susceptabilty

order to calculate the number of unpaired electrons for each paramagnetic complex. Fe(NH4)2(SO4)2 6(H20) had 4 unpaired electrons, KMnO4 had zero unpaired electrons, and K3[Fe(CN)6] had 1 unpaired ele ... le two):Table Two: Parameters of SolutionsSolution Concentration (M) Density (kg/m3)Fe(NH4)2(SO4)26(H20) 0.705 .016 1.1148 .003x103KMnO4 0.377 .016 1.0201 .003x103K3[Fe(CN)6] 0.498 .016 1.0834 .003x10 ...

(6 pages) 70 0 3.5 May/1995

Subjects: Science Essays > Chemistry

The importance of water

itself. Water is a substance whose molecule is made from two 1hydrogen atoms and one 16oxygen atom (H20) and that is in a liquid state at room temperature. It boils at 100ºC and melts at 0ºC ...

(1 pages) 47 1 1.2 Jan/2004

Subjects: Science Essays > Biology

Rates if Reaction GCSE Cousrework

aCO3) and hydrochloric acid (2HCl); the products that they produce are carbon dioxide (CO2), water (H20) and a calcium chloride (CaCl2). The product that will be measured (to show that the reaction ha ... iest to separate from the original solution and measure.The formula is as follows:H2Cl+2CaCO3=Co2 + H20+ CaCl2 .The water mixes into the soloution and there is no easy way to tell if a certain amount ...

(13 pages) 47 0 3.0 Feb/2004

Subjects: Science Essays > Chemistry

Effects of Enzyme Rate by Variables of Enzyme Concentration, Substrate Concentraion, Temperature and pH

effects of different environments affecting the rate of reaction, PNPP (p-nitrophenyl phosphate) + H20 ? PNP (p-nitrophenol) + H3P04. This reaction is catalyzed by the enzyme phosphatase. Different e ... nditions for the enzyme, phosphatase, as it catalyzes the reaction PNPP (p-nitrophenyl phosphate) + H20 ? PNP (p-nitrophenol) + H3P04 under different conditions of enzyme concentration, PNPP concentra ...

(15 pages) 137 0 4.9 Apr/2004

Subjects: Science Essays > Biology

The Cycles of Photophosphorylation

rane within the chloroplast. The first, and most complex cycle is the non-cyclic. It begins with an H20 molecule splitting into 2H+ and ½ O2 in the process of photolysis. (During photolysis oxy ... s of photolysis. (During photolysis oxygen is released as a byproduct.) The two electrons lost from H20 are transferred to chlorophyll 680. Different pigments in Photosystem II can absorb specific wav ...

(1 pages) 32 0 4.1 May/2004

Subjects: Science Essays > Biology > Plant Biology

Pilot test

m + 5cm33 water0.15m NaS2O3 20cm3Amount of HCL(cm3) Amount ofNaS2O3(cm3) Time(Sec) Amount of Water H20(cm3)10 cm3 20 cm3 32:34 sec 0 cm35 cm3 20 cm3 42:52 sec 5 cm3The result show that when the subst ... eacted with a time of 32:34 seconds. However when I used 1 molar of hcl and 5 cm3 Hcl with 5 cm3 of H20. It took longer for the X to not be seen and therefore suggesting that it was slower as its time ...

(1 pages) 15 0 1.0 Nov/2004

Subjects: Social Science Essays

The Biological importance of water

covered in water.Water itself is a simple molecule made up of 2 hydrogen atoms and one oxygen atom, H20. The hydrogen and oxygen atoms are bonded covalently as shown in the diagram of water's electron ...

(6 pages) 55 0 4.3 Mar/2005

Subjects: Science Essays > Biology

The Chemistry of Copper: AP Chemistry Lab Report

tions and side reactions written out with qualitative data beneath each product and reactant except H20, and a summary.The purpose of this experiment is to observe the qualitative aspects of a series ...

(2 pages) 38 0 4.3 Oct/2006

Subjects: Science Essays > Chemistry

Origins Of Acid Rai

the atmosphere. When carbon dioxide (CO2) is released into the atmosphere, it combines with water (H20) in the air to form carbonic acid. Carbonic acid is the weakest of the three acids and causes si ... water.Formation of Acids in the Atmosphere Gas Acid Formation Acid Name Carbon dioxide (CO2) CO2 + H20= H2CO3 Carbonic Acid Sulfur dioxide (SO2) 2SO2 + O2 = 2S03 S03 + H20 = H2SO4 Sulfuric Acid Nitro ...

(3 pages) 14 0 0.0 Nov/2001

Subjects: Science Essays > Environmental Science