Hello! I really need help with this.
Name the following salts according to the old -ic, -ous system and the stock system.
a. CrS
b. Cr2O3
c. CrI3 X 6H20
d. CuCl
e. CuI2
f. CuBr2 x 4H20
g. HgCl2
h. Hg2Cl2
i. Fe (OH)3
I am totally lost. I don't know how to name these. I have so many more I need to name, and showing me how to do these would help me so so much!
a. CrS
Cr usually has +2 and +3 (although others are known and fairly common as +6) so CrS is chromous sulfide and part b is chromic oxide.
b. Cr2O3
c. CrI3 X 6H20
This one is chromic iodide hexahydrate.
d. CuCl
e. CuI2
f. CuBr2 x 4H20
Cu usually is +1 or +2 so d is cuprous chloride and e is cupric iodide with f as cupric bromide tetrahydrate
g. HgCl2
h. Hg2Cl2
Hg is +1 or +2 so g is mercuric chloride while h is mercurous chloride
i. Fe (OH)3 This is ferric hydroxide
You can tell the valence of the metal by looking at the anion. For example, FeCl2 and FeCl3 and you know Fe is +2 in the first and +3 in the second. Hg2Cl2. You know Cl is -1 so two of them are -2 which makes Hg2 +2 or +1 for each Hg.
How did you come to solving it?
Sure, I'd be happy to help you with the naming of salts using both the old -ic, -ous system and the stock system. Let's go through each one:
a. CrS
- Old system: Chromium sulfide
- Stock system: Chromium(II) sulfide
b. Cr2O3
- Old system: Chromium(III) oxide
- Stock system: Chromium(III) oxide
c. CrI3 x 6H20
- Old system: Chromium(III) iodide hexahydrate
- Stock system: Chromium(III) iodide hexahydrate
d. CuCl
- Old system: Cuprous chloride
- Stock system: Copper(I) chloride
e. CuI2
- Old system: Cupric iodide
- Stock system: Copper(II) iodide
f. CuBr2 x 4H20
- Old system: Cupric bromide tetrahydrate
- Stock system: Copper(II) bromide tetrahydrate
g. HgCl2
- Old system: Mercuric chloride
- Stock system: Mercury(II) chloride
h. Hg2Cl2
- Old system: Mercurous chloride
- Stock system: Mercury(I) chloride
i. Fe(OH)3
- Old system: Ferric hydroxide
- Stock system: Iron(III) hydroxide
I hope this helps! Feel free to ask if you have any more questions or need assistance with other salts.
Hello! I will explain how you can name each of the given salts according to both the old -ic, -ous system and the stock system.
a. CrS:
To name this salt, we need to determine the charge of the chromium ion. Since sulfur (S) carries a charge of -2, and there is only one sulfur atom in this compound, the charge on the chromium ion must be +2 to balance the overall charge of the compound. In the old -ic, -ous system, the suffix -ic is used to indicate the higher charge, and the suffix -ous is used to indicate the lower charge. Therefore, the name of this compound would be chromium(II) sulfide in the stock system.
b. Cr2O3:
In this case, we have chromium (Cr) and oxygen (O). Chromium can form multiple ions, but since there are three oxygen atoms, the total charge of oxygen is -6. To balance the charge, each chromium ion must have a charge of +3. In the old -ic, -ous system, the suffix -ic is used to indicate the higher charge, and the suffix -ous is used to indicate the lower charge. Therefore, the name of this compound would be chromium(III) oxide in the stock system.
c. CrI3 x 6H20:
This compound consists of chromium (Cr), iodine (I), and water (H20). Chromium can form multiple ions, but since there are three iodine atoms, the total charge of iodine is -3. To balance the charge, each chromium ion must have a charge of +3. The presence of water molecules indicates that this is a hydrate compound. The number in front of H20 (6 in this case) indicates the number of water molecules associated with each formula unit of the salt. In the old -ic, -ous system, the suffix -ic is used to indicate the higher charge. Therefore, the name of this compound would be chromium(III) iodide hexahydrate in the stock system.
d. CuCl:
Copper (Cu) can form multiple ions, but since chlorine (Cl) carries a charge of -1, the charge on the copper ion must be +1 to balance the overall charge of the compound. In the old -ic, -ous system, the suffix -ous is used to indicate the lower charge. Therefore, the name of this compound would be copper(I) chloride in the stock system.
e. CuI2:
In this case, we have copper (Cu) and iodine (I). Copper can form multiple ions, but since there are two iodine atoms, the total charge of iodine is -2. To balance the charge, each copper ion must have a charge of +2. In the old -ic, -ous system, the suffix -ic is used to indicate the higher charge. Therefore, the name of this compound would be copper(II) iodide in the stock system.
f. CuBr2 x 4H20:
This compound consists of copper (Cu), bromine (Br), and water (H20). Copper can form multiple ions, but since there are two bromine atoms, the total charge of bromine is -2. To balance the charge, each copper ion must have a charge of +2. The presence of water molecules indicates that this is a hydrate compound. The number in front of H20 (4 in this case) indicates the number of water molecules associated with each formula unit of the salt. In the old -ic, -ous system, the suffix -ic is used to indicate the higher charge. Therefore, the name of this compound would be copper(II) bromide tetrahydrate in the stock system.
g. HgCl2:
Mercury (Hg) can form multiple ions, but since chlorine (Cl) carries a charge of -1, the charge on the mercury ion must be +2 to balance the overall charge of the compound. In the old -ic, -ous system, the suffix -ous is used to indicate the lower charge. Therefore, the name of this compound would be mercury(II) chloride in the stock system.
h. Hg2Cl2:
In this case, we have two mercury (Hg) atoms and two chlorine (Cl) atoms. The charge on the mercury ion can be determined by balancing the overall charge of the compound. Since chlorine carries a charge of -1, the total charge of chlorine is -2. To balance the charge, each mercury ion must have a charge of +1. In the old -ic, -ous system, the suffix -ous is used to indicate the lower charge. Therefore, the name of this compound would be mercury(I) chloride in the stock system.
i. Fe (OH)3:
This compound consists of iron (Fe) and hydroxide ions (OH-). The hydroxide ion carries a charge of -1. To balance the charge, the iron ion must have a charge of +3. In the old -ic, -ous system, the suffix -ic is used to indicate the higher charge. Therefore, the name of this compound would be iron(III) hydroxide in the stock system.
I hope this explanation helps you understand how to name these salts according to both old -ic, -ous system and the stock system. If you have any further questions, feel free to ask!