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On this web-page we just can give you a little glimpse of things that are connected to the pH level - there is much more

pH short for power of Hydrogen

pH scale to show acid / alcaline

ph scale showing high and low pH numbers

The pH scale is logarithmic, so every one-unit change in pH actually represents a ten-fold change in acidity. This means that pH 6.0 is ten times more acidic than pH 7.0, and pH 5.0 is 100 times more acidic than pH 7.0
A range of pH 6.5 to pH 8.2 is optimal for most organisms

The pH measurements are needed in medicine, biology, chemistry, food science,
environmental science, oceanography, civil engineering and many other applications
What do you think?
What pH level has beer?
Most beer have a pH level of 4.6


What do you think?
What pH level has soap?
Most soaps have a pH level of 9.5


What do you think?
What pH level has bleach?
Bleach has a pH level of 12.5


What do you think?
What pH level has vinegar?
Most vinegar have a pH level of 2.5


What do you think?
What pH level has orange juice?
Orange juice has a pH level of 3.6


What do you think?
What pH level has blood?
Normally blood has a pH level of 7.4


Why did we state that the pH level is essential for life?

Most of all life forms on Earth breathe in and out - we all do it because our body needs oxygen
But the air we breathe in does not only contain oxygen, air has more ingredients.
One of them is carbon dioxide CO2 in its gaseous form.

Now, see how the pH is directly related to our life:
When the CO2 concentration in our blood is increasing, our blood pH will decrease, resulting in hemoglobin proteins releasing their load of oxygen.
When the CO2 concentration in our blood is decreasing, our blood pH will increase, resulting in hemoglobin picking up more oxygen.
Carbon dioxide can lower the pH of our blood.
Result: Our body, our heart gets the oxygen it needs to do its work!

Both increasing and decreasing pH is life threatening to all mammals.

carbon dioxide changes the ph level of water blood, all liquids that contain h2o. The Bohr effect is a physiological phenomenon first described in 1904 by the Danish physiologist Christian Bohr. Since carbon dioxide reacts with water to form carbonic acid, an increase in CO2 results in a decrease in blood pH.Carbon Dioxide can also be solid and liquid. It can only be solid when temperatures are below -78 o Celsius. Liquid carbon dioxide mainly exists when carbon dioxide is dissolved in water. Carbon dioxide is only water-soluble, when pressure is maintained. After pressure drops the CO2 gas will try to escape to air. <u>Carbon dioxide can lower the pH of water. So, when we breath in oxygen is transported to body tissues and carbon dioxide is carried away from them.Our blood captures the oxygen we breathe in and bind it safely to the transport molecule called haemoglobin. The carbon dioxide we breath in lowers the pH in our body helping us to breath out carbon dioxide. CO2 is produced during respiration by mitochondria in cells. It is then either dissolved in the blood plasma, or carried by red blood cells to the lungs. Carbon dioxide is a guardian of the pH of the blood, our red liquid that contains 92 % of water, and is essential for survival.<br>
The buffer system in which carbon dioxide plays an important role is called the carbonate buffer. It is made up of bicarbonate ions and dissolved carbon dioxide, with carbonic acid. The carbonic acid can neutralize hydroxide ions, which would increase the pH of the blood when added. The bicarbonate ion can neutralize hydrogen ions, which would cause a decrease in the pH of the blood when added
Carbon dioxide can lower the pH of water.
In the last decades the pH level of Earth's ocean is decreasing, = ocean acidification - simply said: Ocean water gets more acid.
But the pH level of our ocean water is very important to all life forms that live in the ocean.
Corals have a chalky skeleton, acid can dissolve chalk. Coral reefs are the kindergarten for most of ocean life.
Over 2 billion humans depend on food out of the ocean. What happens when the kindergarten is closed?


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