Homework Answers
4) sodium will lose 1 electron forms +1 charge
so for sodium = +1
5) sulfate = SO4-2
oxidation state = -2
6) for any ionic compound number of positive charges must be equal to number of negetive charges
Na2SO4 is the ionic molecule formed between sodium and sulfate
7) cation = sodium = Na+
anion = sulfate = SO4-2
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4. (2 pts) What is oxidation state (ionic charge) for a sodium ion? 5. (2 pts)...
The most abundant cation in seawater is the sodium ion. The evaporation of seawater gives a...
The most abundant cation in seawater is the sodium ion. The evaporation of seawater gives a mixture of ionic compounds containing sodium combined with chloride, sulfate, carbonate, bicarbonate, bromide, fluoride, and tetrahydroxyborate. [tetrahydroxyborate = B(OH)4–]. Write the chemical formulas of all these compounds. 1. Sodium chloride 2. Sodium sulfate 3. Sodium carbonate 4. Sodium bicarbonate 5. Sodium bromide 6. Sodium fluoride 7. Sodium tetrahydroxyborate
To determine the salt formed during a neutralization reaction, combine the anion formed by the dissociation...
To determine the salt formed during a neutralization reaction, combine the anion formed by the dissociation of the acid and the cation formed by the dissociation of the base in a ratio that results in a neutral, ionic compound. For example, if you have a cation with a 1+ charge and an anion with a 2- charge, you will need two cations to balance the charge. [(1+ charge on cation)(2)]+[2 - charge on anion)(1)] = (+2) + (-2) = 0...
Learning Goal: To learn how to write ionic formulas. Part A Here are some things to...
Learning Goal: To learn how to write ionic formulas. Part A Here are some things to remember when dealing with ionic compounds: What is the formula for nickel(III) oxide? Express your answer as a chemical formula. View Available Hint(s) • By convention, the cation is named first and the anion is named second • A Roman numeral in the name indicates the charge of the cation. • The subscripts in the formula represent the number of positive and negative ions...
a-c 32. Consider the complex ion [CoF (OH)2]3 (4 pts) What is the oxidation state of cobalt in this compound? How many d electrons does the cobalt ion have? a. (4 pts) Draw a d orbital splitting d...
a-c
32. Consider the complex ion [CoF (OH)2]3 (4 pts) What is the oxidation state of cobalt in this compound? How many d electrons does the cobalt ion have? a. (4 pts) Draw a d orbital splitting diagram for this ion. How many unpaired electrons are in the complex ion? b. (2 pts) Can this ion exhibit isomerization? If so, what type? c. 10 of 14
32. Consider the complex ion [CoF (OH)2]3 (4 pts) What is the oxidation state...
(3) What affect does the charge of the ion in solution have on the activity coefficient?...
(3) What affect does the charge of the ion in solution have on the activity coefficient? How does this effect change as a function of the ionic strength (u)? (4) Does the activity coefficient depend on whether the ion is a cation or an anion?
1) Predict the charge that a magnesium (Mg) ion would have A) 5- B) 1+ C)...
1) Predict the charge that a magnesium (Mg) ion would have A) 5- B) 1+ C) 1- D) 2+ 2) Predict the charge that an ion formed from sulfur would have. A) 1- B) 6+ C) 3- D) 4+ E) 2- 3) Which of the following does NOT describe a metal? A) good conductor of heat B) good conductor of electricity C) tends to gain electrons D) forms ionic compounds with nonmetals E) found on the left side of the...
For each of the following compounds decide what the charge of the anion and the cation...
For each of the following compounds decide what the charge of the anion and the cation is respectively. If the cation or anion is a polyatomic ion, you may simple state the charge on the entire polyatomic ion. (For example if PO. is present it would simple be-3). 5. a. CaO Anion: Cation: b. Fe2O Anion:_ Cation: c. Ba(OH);2 Anion: cation: d. NaOH Anion: Cation: e. NH4CI Anion: Cation: f. Na2COs Anion: Cation: g. K2SO4 Anion: Cation:_
4.) Consider the complex ion pair in question 3c. What are the oxidation states of the...
4.) Consider the complex ion pair in question 3c. What are the oxidation states of the Fe ions (Hint: this is not a mixed valent complex, where the oxidation state of a metal center is a non-integer value [Fe(b.py)s]: Fe Oxidation state = (5 marks) [Fe,OClkJ: Oxidation state of (10 marks)
What is the oxidation state of N in the following N204 and NO2 molecule/ion? (c) +4...
What is the oxidation state of N in the following N204 and NO2 molecule/ion? (c) +4 and +3 0000 (a) +2 and +1 (b) +3 and +2 (d) +4 and +2
Sodium commonly ionizes to become a positively charged cation (having a charge of +1 FCU). Chloride...
Sodium commonly ionizes to become a positively charged cation (having a charge of +1 FCU). Chloride commonly is a negatively charged anion (having a charge of -1 FCU). If those 2 atoms start 5.0 µm from each other they are likely to attract each other till they are 0.236 nm from each other and bonded to become a salt molecule. What is the change in potential energy as the salt molecule is formed? Follow-Up: When salt is formed, is this...
To determine the salt formed during a neutralization reaction, combine the anion formed by the dissociation of the acid and the cation formed by the dissociation of the base in a ratio that results in a neutral, ionic compound. For example, if you have a cation with a 1+ charge and an anion with a 2- charge, you will need two cations to balance the charge. [(1+ charge on cation)(2)]+[2 - charge on anion)(1)] = (+2) + (-2) = 0...
Learning Goal: To learn how to write ionic formulas. Part A Here are some things to remember when dealing with ionic compounds: What is the formula for nickel(III) oxide? Express your answer as a chemical formula. View Available Hint(s) • By convention, the cation is named first and the anion is named second • A Roman numeral in the name indicates the charge of the cation. • The subscripts in the formula represent the number of positive and negative ions...
a-c
32. Consider the complex ion [CoF (OH)2]3 (4 pts) What is the oxidation state of cobalt in this compound? How many d electrons does the cobalt ion have? a. (4 pts) Draw a d orbital splitting diagram for this ion. How many unpaired electrons are in the complex ion? b. (2 pts) Can this ion exhibit isomerization? If so, what type? c. 10 of 14
32. Consider the complex ion [CoF (OH)2]3 (4 pts) What is the oxidation state...
(3) What affect does the charge of the ion in solution have on the activity coefficient? How does this effect change as a function of the ionic strength (u)? (4) Does the activity coefficient depend on whether the ion is a cation or an anion?
1) Predict the charge that a magnesium (Mg) ion would have A) 5- B) 1+ C) 1- D) 2+ 2) Predict the charge that an ion formed from sulfur would have. A) 1- B) 6+ C) 3- D) 4+ E) 2- 3) Which of the following does NOT describe a metal? A) good conductor of heat B) good conductor of electricity C) tends to gain electrons D) forms ionic compounds with nonmetals E) found on the left side of the...
For each of the following compounds decide what the charge of the anion and the cation is respectively. If the cation or anion is a polyatomic ion, you may simple state the charge on the entire polyatomic ion. (For example if PO. is present it would simple be-3). 5. a. CaO Anion: Cation: b. Fe2O Anion:_ Cation: c. Ba(OH);2 Anion: cation: d. NaOH Anion: Cation: e. NH4CI Anion: Cation: f. Na2COs Anion: Cation: g. K2SO4 Anion: Cation:_
4.) Consider the complex ion pair in question 3c. What are the oxidation states of the Fe ions (Hint: this is not a mixed valent complex, where the oxidation state of a metal center is a non-integer value [Fe(b.py)s]: Fe Oxidation state = (5 marks) [Fe,OClkJ: Oxidation state of (10 marks)
What is the oxidation state of N in the following N204 and NO2 molecule/ion? (c) +4 and +3 0000 (a) +2 and +1 (b) +3 and +2 (d) +4 and +2
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