4. Explain how calcareous waters which are in contact with atmospheric carbon dioxide have a nearly...

Question

Question

science chemistry

Answer 1

Answer #1

we have , following equilibrium of CO2 with water :

CO2(g) <===> CO2 (aq) <===> H2CO3 (aq)

H2CO3 (aq) <===> H+ (aq) + HCO3- (aq) ..... 1

This acidity ( H+ (aq) ) produced due to CO2 equilibrium is neutralized by carbonate-buffer system of calcareous water :

CaCO3 (s) <===> Ca2+ (aq) + CO32- (aq)

CO32- (aq) + H2O (l) <===> OH- (aq) + HCO3- (aq) .... 2

this alkalinty neutralizes acidity arisen due to atmospheric CO2 :

from 1 &2 :

OH- (aq) +H+ (aq) <====> H2O (l)

This pH of water remains neutral.

Add a comment

Answer 2

Similar Homework Help Questions

1. Explain how atmospheric sulfur trioxide (SO3) decreases the pH of water in clouds and rain....

1. Explain how atmospheric sulfur trioxide (SO3) decreases the pH of water in clouds and rain. 2. Explain how atmospheric nitrogen dioxide (NO2) decreases the pH of water in clouds and rain. 3. Carbon dioxide in the air is acidifying the world's oceans. Describe how carbon dioxide in the air causes the pH of ocean water to decrease through a series of physical and chemical transformations.
As of October 4, 2017, the measured concentration of atmospheric carbon dioxide (CO2 in Air) is...

As of October 4, 2017, the measured concentration of atmospheric carbon dioxide (CO2 in Air) is 616 ppm by mass. This measurement is taken from the Mauna Loa observatory on the Big Island of Hawai’i. Consider that 616 ppm means air is 0.0616 % CO2 by mass (mass CO2/mass air). Calculate the mass of CO2, in micrograms, in 1.00 cubic foot of air. i dont understand the steps. could someone explain the steps and not just show the steps
use Le chatelier principle to explain how an increase in carbon dioxide in the atmosphere affects...

use Le chatelier principle to explain how an increase in carbon dioxide in the atmosphere affects the ph of lakes rivers and oceans

Q11. Which of the following reason can explain that carbon dioxide is considered as an important...

Q11. Which of the following reason can explain that carbon dioxide is considered as an important factor for climate change? A.carbon dioxide absorbs water vapor B.carbon dioxide react with water vapor C.carbon dioxide absorbs infrared radiation D.carbon dioxide can be broken down as carbon atoms and oxygen molecules by ultraviolet radiation, then the carbon burns with the oxygen. - Q12. Which of the following statements is NOT true? A.Atmosphere is NOT well-mixed from bottom to top. B.Atmospheric pressure decreases with...
Explain how pH, carbon dioxide, and 2,3-BPG promote the release of oxygen from hemoglobin. Why is...

Explain how pH, carbon dioxide, and 2,3-BPG promote the release of oxygen from hemoglobin. Why is it important to favor the release but not the binding of oxygen to hemoglobin?
explain how most carbon dioxide is carried in the blood. ( this question is not asking...

explain how most carbon dioxide is carried in the blood. ( this question is not asking about which vessels blood flows through).

4) Explain how can bioenergy maintain a closed carbon dioxide cycle. Show transcribed image text

4) Explain how can bioenergy maintain a closed carbon dioxide cycle.
1) State and explain common causes of metabolic acidosis 2) State and explain common causes of metabolic alkalosis. 3) Explain how carbon dioxide is eliminated in the lungs (a diagram is appropriate)...

1) State and explain common causes of metabolic acidosis 2) State and explain common causes of metabolic alkalosis. 3) Explain how carbon dioxide is eliminated in the lungs (a diagram is appropriate) 4) What are the major chemical buffer systems in the blood and in urine?
Your instructor gives you a 100 g of dry ice (solid carbon dioxide) at -100 °C....

Your instructor gives you a 100 g of dry ice (solid carbon dioxide) at -100 °C. Through the course of an experiment, you end up with 100 g of gaseous carbon dioxide at 0 °C. Answer the following questions based on this data. Assume that no heat is lost to the outside environment during the experiment. The specific heats for solid and gaseous carbon dioxide are 0.296 and 0.203 cal/g-°C respectively. Remember, carbon dioxide sublimes from solid to gas at...

Urease is an enzyme which 'catalyses the breakdown of urea to ammonia and carbon dioxide. An...

Urease is an enzyme which 'catalyses the breakdown of urea to ammonia and carbon dioxide. An experiment was carried out into the effect of pH on the activity of urease. 10 cm of pH 3 buffer solution was mixed with 1 cm3of urease solution. This mixture was then added to 10 cm3 of urea solution and the concentration of ammonia in the mixture was measured after 60 minutes. This procedure was repeated using buffer solutions of pH 4, 5, 6,...