Over the past 250 years, the average upper-ocean pH near the Pacific Northwest has decreased by about 0.1 units, from about 8.2 to 8.1. This drop in pH corresponds to an increase in acidity of about 30%. When CO2 levels in seawater rise, the availability of carbonate ion, CO32−, This makes it more difficult for marine organisms to build and maintain shells and other body parts from calcium carbonate.Calculate H3O+ and OH− concentrations at pH levels of 8.2 and 8.1.Demonstrate by calculations that this decrease in pH corresponds to an increase in acidity of about 30%.Explain the relationship between the pH of seawater and the availability of carbonate ion. Does the change in pH from 8.2 to 8.1 result in an increase or decrease in the availability of carbonate ion?

a) Calculation of [H+] and [OH-] at pH= 8.1: pH=-log[H+]8.1=-log[H+][H+]=10-8.1[H+]=7.94×10-9…

Answered: Over the past 250 years, the average…

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter15: Acid–base Equilibria

Section: Chapter Questions

Problem 82AP

See similar textbooks

Related questions

Concept explainers

Question

Over the past 250 years, the average upper-ocean pH near the Pacific Northwest has decreased by about 0.1 units, from about 8.2 to 8.1. This drop in pH corresponds to an increase in acidity of about 30%. When CO₂ levels in seawater rise, the availability of carbonate ion, CO₃²⁻, This makes it more difficult for marine organisms to build and maintain shells and other body parts from calcium carbonate.
- Calculate H₃O⁺ and OH⁻ concentrations at pH levels of 8.2 and 8.1.
- Demonstrate by calculations that this decrease in pH corresponds to an increase in acidity of about 30%.
- Explain the relationship between the pH of seawater and the availability of carbonate ion. Does the change in pH from 8.2 to 8.1 result in an increase or decrease in the availability of carbonate ion?

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions