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How does rising carbon dioxide levels affect the pH of ocean water?
Wiki User
∙ 6y ago
Carbon dioxide dissolves slightly in water to form a weak acid called carbonic acid, H2CO3, according to the following reaction:
CO2 + H2O --> H2CO3
After that, carbonic acid reacts slightly and reversibly in water to form a hydronium cation, H3O+, and the bicarbonate ion, HCO3-, according to the following reaction:
H2CO3 + H2O --> HCO3- + H3O+
This chemical behaviour explains why water, which normally has a neutral pH of 7 has an acidic pH of approximately 5.5 when it has been exposed to air.
Read more: http://www.lenntech.com/carbon-dioxide.htm#ixzz0U0j7XJP9
Wiki User
∙ 14y ago
Wiki User
∙ 15y agoIn terms of freshwater ecology:
Caron dioxide may build up in water as a result of respiration. In poorly buffered water, this can cause a drop in pH (typically during the night b/c of no photosynthetic activities).
Co2 can dissolve into water creating carbonic acid:
Co2 + H20 <--> H2Co3
hence lowering the pH
as a side note:
Aeration can enhance the off-gassing of co2 and raise the pH
Wiki User
∙ 13y agoWhen CO2 is mixed, and dissolved, in water the pH value gets lower than 7.0 because CO2 is an acid forming oxide (but rather weakly).
Dissolve: CO2 + H2O <=-> H2CO3
Acid: H2CO3 + H2O <=-> HCO3- + H3O+
Wiki User
∙ 6y agoRising carbon dioxide levels in the atmosphere mean that more carbon dioxide is being absorbed by the oceans making them more acidic. So the pH levels of the ocean are becoming lower (more acidic).
Wiki User
∙ 15y agoH2O + CO2 => H2CO3
H2CO3 is carbonic acid, therefore, it becomes a more acidic solution
Wiki User
∙ 11y agoA weak acid called carbonic acid (H2CO3) is formed. so the pH will decrease slightly
Wiki User
∙ 7y agoAbsorption of carbon dioxide increase the pH of water.
Wiki User
∙ 13y agoCO2 is acidic so it will lower pH.
Wiki User
∙ 7y agoDissolved carbon dioxide decrease the pH.
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Why does the level of carbon dioxide affect the global temperature?
Carbon dioxide (and other gases) creates a "blanket" around the earth trapping heat in the atmosphere. If these "greenhouse" gases were not there some of the heat would escape from the earth's atmosphere --------------------------------------------------------------------------------------- Carbon dioxide is transparent to visible light but opaque to infrared light (i.e. heat). When sunlight passes through the atmosphere and heats the surface of the earth the earth radiates infrared light. At low levels of carbon dioxide most of this infrared escapes to space, cooling the earth; but at high levels of carbon dioxide most of this infrared is reflected back down to the surface of the earth, keeping it hot.
Does burning fossil fuels affect the carbon cycle?
Yes, the carbon cycle is responsible for moving carbon in and out of the atmosphere. It normally works carefully so there is always the right balance, because carbon dioxide in the atmosphere is a greenhouse that helps to keep the earth comfortably warm. Burning fossil fuels releases age-old carbon that has been hidden away for millions of years. Releasing it now imposes an extra burden on the carbon cycle which is unable to keep it balanced. This is why carbon dioxide levels and rising and the atmosphere is warming.
Does carbon dioxide trap heat?
Yes, carbon dioxide (CO2) is one of the greenhouse gases. It absorbs heat (infrared radiation) rising from the surface of the earth and prevents some of it escaping to space. The build up of carbon dioxide in the atmosphere is contributing to the enhanced (or accelerated) greenhouse effect which is causing global warming.
What gas in the atmosphere will bring about a warming of the lower atmosphere?
Carbon dioxide (CO2) absorbs heat rising from the surface of the earth.
Why do scientists think that global warming is occurring?
Global warming is occurring for several reasons. Average temperatures have climbed 1.4 degrees Fahrenheit every year. The rate of warming is also increasing. Humans are also causing global warming, by pouring carbon dioxide into the atmosphere much faster than plants and oceans can absorb.
Carbon dioxide in a sentence?
The carbon Dioxide levels in the Earth's atmosphere are rising.
Does the breathing control center in the brain monitor the rising CO2 levels in the blood?
Quite so. The brain stem detects high levels of carbon dioxide and triggers breathing.
What is the trend of carbon dioxide concentrated in the atmosphere?
The trend, unfortunately, is rising. Two hundred years ago carbon dioxide levels were around 280 ppm (parts per million) and had been that way for thousands of years. Now (2014) levels have reached 400 ppm or 0.04%. They have been rising every year since global warming began.
How has the greenhouse effect been improved?
Unfortunately the enhanced greenhouse effect has not improved. Carbon dioxide and methane levels are continuing to rise, with the rise in carbon dioxide levels actually rising at an exponential rate. The one small piece of good news is that methane levels are currently rising at a much slower rate than they had been. There is hope that we can also slow the rise in the concentration of atmospheric carbon dioxide, but only if we as individuals do more, and our governments develop the political courage to take the action they know must sooner or later be taken.
What does a falling blood pH and a rising partial pressure of carbon dioxide due to pneumonia or emphysema indicate?
Pneumonia will cause decreased oxygenation to tissues resulting in a raise of carbon dioxide. To understand the answer you need to understand the balance of pH and Bicarb. When the carbon dioxide raises the Bicarb reacts and levels fall; therefore, you have compensated respiratory acidosis.
Why does the level of carbon dioxide affect the global temperature?
Carbon dioxide (and other gases) creates a "blanket" around the earth trapping heat in the atmosphere. If these "greenhouse" gases were not there some of the heat would escape from the earth's atmosphere --------------------------------------------------------------------------------------- Carbon dioxide is transparent to visible light but opaque to infrared light (i.e. heat). When sunlight passes through the atmosphere and heats the surface of the earth the earth radiates infrared light. At low levels of carbon dioxide most of this infrared escapes to space, cooling the earth; but at high levels of carbon dioxide most of this infrared is reflected back down to the surface of the earth, keeping it hot.
What were the condtions like on the kursk submarine when it sank?
tinned food no drinking water carbon dioxide scrubbers no washing facilities and rising water levels
How is carbon dioxide is produced through human activity.?
Climate scientist agree that carbon dioxide levels are rising because of the two human activities of deforestation and burning fossil fuels (coal, oil and natural gas). Carbon dioxide is a greenhouse gas that is causing global warming and climate change.
When carbon dioxide levels increase in the atmosphere what happens to global temperatures?
When greenhouse gases like carbon dioxide increase in the atmosphere then the temperature rises. Greenhouse gases capture heat rising from the surface of the earth and prevent it escaping to space.
What evidence indicates that the rising atmospheric carbon dioxide levels are caused by the combustion of fossil fuels?
the average global temp and the atmospheric co2 level has risen
Can you see carbon dioxide rising from fire?
Nope - the gas is colourless !
Does burning fossil fuels affect the carbon cycle?
Yes, the carbon cycle is responsible for moving carbon in and out of the atmosphere. It normally works carefully so there is always the right balance, because carbon dioxide in the atmosphere is a greenhouse that helps to keep the earth comfortably warm. Burning fossil fuels releases age-old carbon that has been hidden away for millions of years. Releasing it now imposes an extra burden on the carbon cycle which is unable to keep it balanced. This is why carbon dioxide levels and rising and the atmosphere is warming.
