MTH133 UNIT 5
Not what you're looking for?
Part 1: Using the Library, web resources, and/or other materials, find the logarithmic formula that gives the pH of a substance. State what each variable in your equation represents.
Find the pH of an acidic substance of your choice. Using this pH, show how to find the hydrogen ion concentration, [H+], of the substance using the formula. Discuss the meaning of pH and [H+], the pH scale and why your chosen substance is acidic. Use scientific notation or enough decimal places so that your answer has at least 3 place values. For example, either use 3.44*10-6 or 0.00000344.
Part 2: Suppose that the number of cars, C, on 1st Avenue in a city over a period of time t, in months, is graphed on a rectangular coordinate system where time is on the horizontal axis. Suppose that the number of cars driven on 1st Avenue can be modeled by an exponential function, C= p * at (C=p*a^t) where p is the number of cars on the road on the first day recorded. If you commuted to work each day along 1st Avenue, would you prefer that the value of "a" be between 0 and 1 or larger than 1? Explain your reasoning. Be sure to reference your sources using APA style.
Purchase this Solution
Solution Summary
The solution has all the correct answers with proper details. Enjoy the material and remember my name to restrict postings for me in the system.
Thanks.
Solution Preview
Dear student,
Please find the solution properly described below.
Thanks,
Kavita Narang
Answer...
The formula is:
pH = -log10[H+]
In the formula, pH is the pH, and H+ is the hydrogen ion concentration (in moles/L).
Let's pick Orange Juice, which have a pH of 2.80. It is an acid, since the pH is below 7.
Plug 2.80 into the formula:
2.80 = ...
Purchase this Solution
Free BrainMass Quizzes
Match Elements with their Symbols
Elements are provided: choose the matching one- or two-letter symbol for each element.
Organic Chemistry Naming: Alkanes
This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.
Thermochemistry
The quiz helps in revising basic concepts about thermochemistry.
General Chemistry - Classification of Matter
This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.