States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
![**Week 3 Assignment: Acid-Base Equilibria**
**Problem 16.48 - Enhanced - with Feedback**
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**Part A**
Given: \(1.50 \times 10^{-2} \, M \, \text{HNO}_3\)
Task: Express the pH of the solution to three decimal places.
\[ \text{pH} = \]
[Submit] [Request Answer]
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**Part B**
Given: \(0.420 \, \text{g of HClO}_3\) in \(2.10 \, L\) of solution
Task: Express the pH of the solution to three decimal places.
\[ \text{pH} = \]
[Submit] [Request Answer]
---
Note: The image does not contain any graphs or diagrams.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd28bb5a8-7114-481e-95e9-134d2c6aa143%2F5f43a260-8e95-4916-83c9-f839c78e8f40%2Fbdrnck_processed.jpeg&w=3840&q=75)
![**Week 3 Assignment: Acid-Base Equilibria**
**Problem 16.48 - Enhanced - with Feedback**
**Part C**
A solution is prepared by diluting 10.00 mL of 1.20 M HCl to a final volume of 0.430 L.
- **Task**: Express the pH of the resulting solution to three decimal places.
(An input box is provided for the pH value. Options for mathematical expressions and symbols are available.)
**Part D**
A mixture is formed by adding 59.0 mL of 1.5×10⁻² M HCl to 160 mL of 1.5×10⁻² M HI.
- **Task**: Express the pH of the resulting solution to two decimal places.
(An input box is provided for the pH value. Options for mathematical expressions and symbols are available.)
Buttons for submission and requesting answers are included for each part.
**Additional Note**: There are no graphs or diagrams. The interface allows for input and calculation of pH based on the given concentrations and volumes.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd28bb5a8-7114-481e-95e9-134d2c6aa143%2F5f43a260-8e95-4916-83c9-f839c78e8f40%2Fyc62trk_processed.jpeg&w=3840&q=75)
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