Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Solubility essay question
chapter 3 properties of water
solubility
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Solubility essay question
Water is the common name applied to the liquid state of the
hydrogen-oxygen compound H2O. In 1804, the French chemist Joseph Louis
Gay-Lussac and the German naturalist Alexander von Humboldt
demonstrated that water consists of two volumes of hydrogen to one of
oxygen, as it is shown in the present-day formula H2O.
· Properties
Pure water is an odorless, tasteless liquid. It has a bluish color,
which may be detected, however, only in layers of considerable depth.
Under standard atmospheric pressure (760 mm of mercury), the freezing
point of water is 0° C and its boiling point is 100° C . Water attains
its maximum density at a temperature of 4° C and expands upon
freezing. Like most other liquids, water can exist in a super cooled
state.Which means that it may remain a liquid although its temperature
is below its freezing point. Water can easily be cooled to about -25°
C without freezing, either under laboratory conditions or in the
atmosphere itself. Super cooled water will freeze if it is disturbed,
if the temperature is lowered further, or if an ice crystal or other
particle is added to it.
Almost all the hydrogen in water has an atomic weight of 1. Water is
one of the best-known ionic bonds. Because most substances are
somewhat soluble in water, it is frequently called the 'universal'
solvent. Water combines with certain salts to form hydrates. It reacts
with metal oxides to form acids. It acts as a catalyst in many
important chemical reactions.
· Occurrence
Water is the only substance that occurs at ordinary temperatures in
all three states of matter, that is, as a solid, a liquid, and a gas.
As a solid, or ice, it is found as glaciers and ice caps, in winter,
as snow or hail. It occurs in the liquid state as rain clouds formed
of water droplets, and on vegetation as dew.In addition, it covers
three-quarters of the surface of the earth in the form of swamps,
lakes, rivers, and oceans.
The term snow is usually restricted to material that fall during precipitation in the form of small white ice crystals formed directly from the water vapour of the air at a temperature of less than 0°C and has not changed much since it fell. A fall of snow on a glacier surface is the first step in the formation of glacier ice, a process that is often long and complex (Cuffey and Paterson, 2010). The transformation of snow to ice occurs in the top layers of the glaciers and the time of the transformation depends mostly on the temperature. Snow develops into ice much more rapidly on Temperate glaciers, where periods of melting alternate with periods when wet snow refreezes, than in Polar glaciers, where the temperature remains well below the freezing point throughout the year. The density of new snow as it falls on glacier surface depends mostly on the weather conditions. In clam conditions, the density of new snow is ρs ≈ 50 – 70 kg m-3 (Table 1.1). If it is windy, there is breaking of the corners of snowflakes, and the density is more like ρs ≈ 100 kg m-3. After the snow has fallen on the surface, there are three processes that are all active together and work to transform the snow to ice.
Some Unusual Properties of Water Cohesion / Adhesion Water molecules attract each other as a result of hydrogen bonding. This ionic attraction is 1/20 as strong as a covalent bond in water's liquid form. They form, break and re-form with great frequency; each hydrogen bond lasts only a few trillionths of a second, but the molecules bond promiscuously to a succession of partners. At any instant, a substantial percentage of all the water molecules are bonded to their neighbors, giving water more structure than other liquids. Collectively, this phenomenon is known as cohesion.
How important are fluids? Fluid replacement is probably the most important nutritional. concern for the athletes. Approximately 60% of your body weight is. water.
Have you ever stopped and thought, “ what would i do if my kid had a disability?” Or ever question why you act a certain way or if you 're strong enough? In the Articles “Notes From a Dragon mom, What we hunger For and the speech “ This is Water” These authors all share there thoughts on what makes a person act the way they do.
This necessity of life is everywhere around us. It is more abundance than the ground of which you stand on; it glimmers under the bright sun; it ripples in the wind, and it gave birth to many intellectual civilizations. This necessity of life can conform into any shapes and sizes. It can be the genesis of life, but it can also bring death. This versatile, natural compound is used to provide electricity to million of people; it is the bearer of nostalgic memories, and a symbol for the summer season.
Tritiated water is a radioactive form of water where the hydrogens have two neutrons instead of zero neutrons found in pure water (McFarlane, Beckert and Brown 1976). Tritiated water acts like solute in the pure water of the xylem; therefore water exchange with cambium occurs and the treated water exits the xylem and enters the cambium via diffusion. Furthermore exchange between the phloem and the cambium occur to further dilute the tritium (Metzner et al. 2010; Klepper, Molz, and Peterson 1973). This exchange of the tritiated water again occurs via diffusion (Metzner et al. 2010; Klepper, Molz, and Peterson 1973). The tritiated water then travels from the phloem back to the roots. When the plant is girdled, the xylem is unable to exchange
My eyes opened to a bright light. Is this what they say heaven is like? If it is I think I want to go back to Earth where I’m not being yelled at. My eyes slowly fluttered opened as I glared up into her bright green eyes. What the heck is going on and where am I? The last thing I remember is catching some waves off the beach of Lanikai on the island of Oahu. I was in Hawaii. Now where am I? Great question. I wish I knew.
Once long ago, there was an island called Resaii. It was a beautiful place where three thousand people lived. The ocean that surrounded it had prepossessing clear waters that consisted of magnificent ocean life. Everyone loved it there. Sadly, it was all obliterated on one disastrous night.
Since the days of Aristotle, all substances have been classified into one of three physical states. A substance having a fixed volume and shape is a solid. A substance, which has a fixed volume but not a fixed shape, is a liquid; liquids assume the shape of their container but do not necessarily fill it. A substance having neither a fixed shape nor a fixed volume is a gas; gases assume both the shape and the volume of their container. The structures of gases, and their behavior, are simpler than the structures and behavior of the two condensed phases, the solids and the liquids
Water is always on the move. Rain falling where you live may have been water in the ocean just days before. And the water you see in a river or stream may have been snow on a high mountaintop.
Generally, water boils at 100 degree Celsius (212 degree Fahrenheit) in normal room temperature and pressure. If somebody boils the water for five minutes or for twenty minutes, the temperature will always remain the same. The pressure of air affects the boiling point of water. If air pressure is changed, then the boiling point will also change according to it (How does”).
Glaciers are more or less permanent bodies of ice and compacted snow that have become deep enough and heavy enough to flow under their own weight. Glaciers require very specific climatic conditions. Glaciers develop where the temperatures are cold enough to allow the snow to accumulate and compacted. Most are found in regions of high snowfall in winter and cool temperatures in summer. These conditions ensure that the snow that accumulates in the winter isn't lost (by melt, evaporation, or calving) during the summer. Such conditions typically prevail in polar and high alpine regions. There are two main types of glaciers: valley glaciers and continental glaciers (Armstrong).
Matter is defined as anything that occupies space and can be perceived by one or more senses; a physical body, a physical substance, or the universe as a whole. There are four distinct states of matter: solids, liquids, gases, and plasma. There are other states of matter such as Bose-Einstein condesates and neutron degenerate matter, but those states can only be found under extreme conditions.
Many people around the world need water. Around 780 million people are unable to get clean water (One Billion Affected). People who do have access to clean water in their homes, have to pay a fee. The people who struggle to live obviously do not have enough money to buy water. People who are unable to have clean water have a good chance of dying either from disease or from dehydration. At least 3.4 million people die a year from water problems such as sanitation (One Billion Affected).
Less than 1% of the water supply on earth can be used as drinking water.