What Is The Ratio Of $Sr^{2+}$ Ions To $Br^{-}$ Ions In A Neutral Compound?A. 1:1 B. 1:2 C. 2:1 D. 3:2
Introduction
In chemistry, the formation of compounds involves the combination of ions with opposite charges. When a metal ion, such as $Sr^{2+}$, reacts with a nonmetal ion, such as $Br^{-}$, a neutral compound is formed. The ratio of metal ions to nonmetal ions in a neutral compound is determined by the charges of the ions involved. In this article, we will explore the ratio of $Sr^{2+}$ ions to $Br^{-}$ ions in a neutral compound.
Understanding Ion Charges
To determine the ratio of ions in a neutral compound, we need to understand the charges of the ions involved. The charge on an ion is determined by the number of protons in its atomic nucleus. A metal ion, such as $Sr^{2+}$, has a positive charge because it has lost electrons to form a cation. A nonmetal ion, such as $Br^{-}$, has a negative charge because it has gained electrons to form an anion.
The Law of Conservation of Charge
The law of conservation of charge states that the total charge of the ions in a compound must be zero. This means that the positive charge of the metal ion must be balanced by the negative charge of the nonmetal ion. In the case of $Sr^{2+}$ and $Br^{-}$, the positive charge of the metal ion is +2, and the negative charge of the nonmetal ion is -1.
Determining the Ratio of Ions
To determine the ratio of $Sr^{2+}$ ions to $Br^{-}$ ions in a neutral compound, we need to balance the charges of the ions. Since the positive charge of the metal ion is +2, we need two nonmetal ions with a negative charge of -1 each to balance the charge. Therefore, the ratio of $Sr^{2+}$ ions to $Br^{-}$ ions in a neutral compound is 1:2.
Conclusion
In conclusion, the ratio of $Sr^{2+}$ ions to $Br^{-}$ ions in a neutral compound is 1:2. This is determined by the charges of the ions involved and the law of conservation of charge. Understanding the ratio of ions in a compound is important in chemistry, as it helps us to predict the properties and behavior of compounds.
Frequently Asked Questions
- Q: What is the charge on a $Sr^2+}$ ion? A$ ion is +2.
- Q: What is the charge on a $Br^-}$ ion? A$ ion is -1.
- Q: What is the ratio of $Sr^2+}$ ions to $Br^{-}$ ions in a neutral compound? A$ ions to $Br^{-}$ ions in a neutral compound is 1:2.
References
- Chemistry: An Atoms First Approach, by Steven S. Zumdahl
- General Chemistry: Principles and Modern Applications, by Linus Pauling
- Chemistry: The Central Science, by Theodore L. Brown
Additional Resources
- Khan Academy: Chemistry
- Chemistry LibreTexts: Ion Charges
- Chemistry LibreTexts: The Law of Conservation of Charge
Introduction
In our previous article, we explored the ratio of $Sr^2+}$ ions to $Br^{-}$ ions in a neutral compound. We determined that the ratio is 1$ ions to $Br^{-}$ ions in a neutral compound.
Q&A
Q: What is the charge on a $Sr^{2+}$ ion?
A: The charge on a $Sr^{2+}$ ion is +2. This is because the $Sr^{2+}$ ion has lost two electrons to form a cation.
Q: What is the charge on a $Br^{-}$ ion?
A: The charge on a $Br^{-}$ ion is -1. This is because the $Br^{-}$ ion has gained one electron to form an anion.
Q: What is the ratio of $Sr^{2+}$ ions to $Br^{-}$ ions in a neutral compound?
A: The ratio of $Sr^2+}$ ions to $Br^{-}$ ions in a neutral compound is 1$ ions are needed to balance the positive charge of one $Sr^{2+}$ ion.
Q: Why is the ratio of $Sr^{2+}$ ions to $Br^{-}$ ions 1:2?
A: The ratio of $Sr^2+}$ ions to $Br^{-}$ ions is 1$ ion is +2, and the negative charge of the $Br^{-}$ ion is -1. To balance the charge, two $Br^{-}$ ions are needed for every one $Sr^{2+}$ ion.
Q: What is the law of conservation of charge?
A: The law of conservation of charge states that the total charge of the ions in a compound must be zero. This means that the positive charge of the metal ion must be balanced by the negative charge of the nonmetal ion.
Q: Why is the law of conservation of charge important?
A: The law of conservation of charge is important because it helps us to predict the properties and behavior of compounds. By understanding the charges of the ions involved, we can determine the ratio of ions in a compound and predict its properties.
Conclusion
In conclusion, the ratio of $Sr^{2+}$ ions to $Br^{-}$ ions in a neutral compound is 1:2. This is determined by the charges of the ions involved and the law of conservation of charge. Understanding the ratio of ions in a compound is important in chemistry, as it helps us to predict the properties and behavior of compounds.
Frequently Asked Questions
- Q: What is the charge on a $Sr^2+}$ ion? A$ ion is +2.
- Q: What is the charge on a $Br^-}$ ion? A$ ion is -1.
- Q: What is the ratio of $Sr^2+}$ ions to $Br^{-}$ ions in a neutral compound? A$ ions to $Br^{-}$ ions in a neutral compound is 1:2.
- Q: Why is the ratio of $Sr^2+}$ ions to $Br^{-}$ ions 1$ ions to $Br^-}$ ions is 1$ ion is +2, and the negative charge of the $Br^{-}$ ion is -1. To balance the charge, two $Br^{-}$ ions are needed for every one $Sr^{2+}$ ion.
References
- Chemistry: An Atoms First Approach, by Steven S. Zumdahl
- General Chemistry: Principles and Modern Applications, by Linus Pauling
- Chemistry: The Central Science, by Theodore L. Brown
Additional Resources
- Khan Academy: Chemistry
- Chemistry LibreTexts: Ion Charges
- Chemistry LibreTexts: The Law of Conservation of Charge