Essays Tagged: "Properties of water"

Basic concepts and example in entropy (physical chemistry)

Basic concept and example in entropy.An endothermic process with a loss of entropy: (An Reaction which absorbed energy and result formation of more order substances/compoun ... rder to dissolved the crystals in the solvent, energy is required to be put into system in the form of heat, (increasing the kinetic energy of the system to dissolved the impure crystals .As the kinet ... ipated the kinetic energy if has absorbed) eventually the energy supplied will be greater than that of bonds energy (the lattice energy which hold the crystal together) within the crystal. The lattice ...

(3 pages) 70 0 4.4 Apr/2002

Subjects: Science Essays > Chemistry

The Properties of Water By Jeff Collmann What are some properties of water and how do they work?

Water is often considered the bases of life, but what properties of water give it such unique and beneficial characteristics to promote life? A few of th ... dense than in its liquid state, water has a large surface tension, and water is a polar molecule. Properties like these three make life possible.Floating ice seems normally to most people, but if ...

(2 pages) 57 0 4.0 Dec/2002

Subjects: Science Essays > Biology

Discuss the xylem and phloem. (Structure, Changes in the Xylem of Woody Plants, Transport)

is the evaporation of water from the leaves. The way in which water is moved upward depends on the properties of water. (1) Transpiration occurs. (2) Water loss creates deficit which must be quickly ...

(4 pages) 152 4 4.5 Jan/2003

Subjects: Science Essays > Biology > Plant Biology

Describing how Hydrogen Bonding is done.

o 10 percent of the strenght of a covalent bond.Hydrogen bonding has a very important effect on the properties of water and ice. Hydrogen bonding is also very important in proteins, nucleic acids, and ...

(1 pages) 31 0 3.0 May/2003

Subjects: Science Essays > Chemistry

Experiment with Diffusion, Osmosis, and Hypertonic Solution. Discusses what each is, along with how the experiment was done in a lab.

IntroductionThe movement of molecules from an area of greater concentration to an area of less concentration is called Diffus ... reater concentration to an area of less concentration is called Diffusion. Osmosis is the diffusion of water through a selectively permeable membrane from an area with greater concentration of water t ... ater concentration of water to an area with less concentration. A Hypertonic Solution is a solution of a higher concentration of solutes and a smaller concentration of water molecules than another sol ...

(2 pages) 149 2 4.6 Aug/2003

Subjects: Science Essays > Biology

The importance of water

It goes into the electronegativity of water, how water bonds, waters adhesive tendancies and other properties of water. Basically it counts up most of the ways water is significant to life on earth a ...

(1 pages) 47 1 1.2 Jan/2004

Subjects: Science Essays > Biology

Describe The Roles of Water in Living Organisms

is vital to many aspects of both human and plant life. Its excellent range of chemical and physical properties allows it to be used in a wide variety of ways including temperature control due to its h ...

(4 pages) 33 0 3.0 Mar/2004

Subjects: Science Essays > Biology

Chemistry of water treatment

e polluted water that is visually unacceptable for human consumption (Vigneswaran, 1). The physical properties of water, such as odor and the presence of solids, can affect the treatment of water by a ... ent of water by altering the chemical effects of the disinfecting agents (Drinan, 25). The chemical properties of water are alkalinity (how basic a substance is, measured in pH (int 14, 1)), hardness, ...

(8 pages) 72 1 3.7 Mar/2004

Subjects: Science Essays > Chemistry

Titration of amino acids

AbstractWater is essential for all living organisms. The physical and chemical properties of water are central to all biological structure and function. The ionization ability of ...

(3 pages) 58 0 3.0 Apr/2004

Subjects: Science Essays > Chemistry

Biology investigation osmosis

gationOsmosisFor this investigation we are going to find out whether potato chips placed in a range of different concentrated sugar solutions increase or decrease in mass.Background knowledgeOsmosis i ... mi permeable membrane.Each cell in a leaf is surrounded by a membrane, which separates the contents of the cell from the outside. The membrane has tiny holes in it, which allows small molecules only t ...

(5 pages) 29 0 4.3 Apr/2004

Subjects: Science Essays > Biology

Water and It's Pollution

n. Physical properties-the result of hydrogen bondingStudied in isolation, the water molecule is deceptively sim ... is a polar molecule, meaning that opposite ends of the molecule have opposite charges.The anomalous properties of water arise from attractions between these polar molecules. The attraction is electric ... a sample of liquid water are linked in this way. The extraordinary qualities of water are emergent properties resulting from the hydrogen bonding that orders molecules into a higher level of structur ...

(12 pages) 186 1 4.2 Apr/2004

Subjects: Science Essays > Atmospheric Sciences

AP Biology: The Properties of Water

Water has many unique properties that make life possible on Earth. One property is cohesion. The cohesion property is prop ... t it is an exceptional substance with many extraordinary qualities. Following the theme of emergent properties, water's unique behavior can be traced to the structure and interactions of its molecules.

(4 pages) 42 1 4.6 Dec/2004

Subjects: Science Essays > Biology

Greenhouse effect, chemistry aspects and effect on human society

the process of the Greenhouse Effect, to understand the process accurately, one must understand the properties of electromagnetic radiation.The sun is a remarkably stable and constant source of our pl ...

(10 pages) 90 1 3.7 May/2005

Subjects: Science Essays > Chemistry

Transpiration AP Lab

ou should understand: how water moves from roots to leaves in terms of the physical/chemical properties of water and forces provided by differences in water potential; the role of transp ...

(8 pages) 36 0 1.0 May/2005

Subjects: Science Essays > Biology

The Importance of Water to Life on Earth.

d all life in the water would die. The water molecule is a very small one but because of its unique properties it behaves like a larger one. The bonds between water molecules are so strong that water ... e most important substance ever to have been created because it is so vital to our race. Its unique properties aid all living things to survive in the scheme of nature on our planet Earth.************ ...

(3 pages) 35 0 3.0 Jan/2006

Subjects: Humanities Essays > Health & Medicine

The chemistry of water

e attracts a negative part of a different water molecule. Hydrogen bonding makes water have unusual properties that also make life possible on earth.Hydrogen bonding causes water to be cohesive, which ... d form (ice) is less dense than its liquid form (water). This is probably the most important of the properties. If ice was denser than water then when bodies of water froze over the ice would sink and ...

(2 pages) 25 1 2.0 Jun/2007

Subjects: Science Essays > Chemistry

Can we determine the densities of different materils?

ina AbayevaDensity Lab is mass per unit of volume. Different materials have different densities. In our lab our main aim is to determine the ... the volume, this time is was a two step process. We used the volume formula for cylinders since all of our materials had this shape:π X r ² X hAfter calculating the volume using the formula we ...

(2 pages) 10 0 0.0 Aug/2007

Subjects: Science Essays > Chemistry


f hydrogen and oxygen and it plays a key role in an existence of living organisms. It is due to its properties like: transparency, cohesion, solvent properties and thermal properties: heat capacity, b ... ces such as sodium and organic substances (solutes) such as glucose can dissolve in it. The solvent properties of water allow substances to be carried in blood and cell sap in plants.Water has its the ...

(3 pages) 2448 0 0.0 Jan/2008

Subjects: Science Essays > Biology

Biological Importance of Water

transparent and odorless. It is one of the most important biological systems and it has many unique properties that make it essential to all life. Water exists in nature in all three states of matter ... ), and it also covers 75% of the earth and composes roughly 78% of our body. Most of water's unique properties are a result of the hydrogen bonds between water molecules.Structure of Water1.Hydrogen b ...

(2 pages) 13 0 3.0 Mar/2008

Subjects: Science Essays > Biology


ow many drops can a penny hold?Hypothesis:We think that all pennies will have the same exact amount of drops because; they all weight and look the same so they will all have the same amount of drops.M ... 5 pennies, regular water, soapy water, beakers, goggles, cups, trays and napkins.Procedure:We start off with the regular water.We take the beakers and the pennies and starting to see how many drops it ...

(2 pages) 0 0 0.0 Oct/2013

Subjects: Area & Country Studies Essays