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vlada-n [284]
3 years ago
8

Naming the hydrates?

Chemistry
2 answers:
slamgirl [31]3 years ago
8 0
HEY mate here your answer

CoBr2 . 6 h2o = Cobalt(II) Bromide Hexahydrate
-BARSIC- [3]3 years ago
7 0

Cobalt(II) bromide hexahydrate.

<h3>Explanation</h3>

Name of the hydrate of an ionic compound:

Name of the ionic compound + Number of water molecules + "hydrate".

What's the name of the ionic compound CoBr₂ without all the H₂O?

There are two ions in this compound:

  • Co²⁺, and
  • Br⁻.

As a transition metal, cobalt Co can form ions of more than one possible charges. Hence, it's necessary to indicate the oxidation state of cobalt in the name. The oxidation state of Co in Co²⁺ is +2. The Co²⁺ ion will be called cobalt(II).

Bromine Br is a nonmetal. The Br⁻ ion is named as bromide.

Thus the name of the salt without H₂O: CoBr₂ Cobalt(II) bromide.

There are six water molecules for every one formula unit of the salt. Hence the prefix hexa-.

Name of the hydrate:

Cobalt(II) bromide hexahydrate.

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An aqueous potassium iodate (KIO3) solution is made by dissolving 553 grams of KIO3 in sufficient water so that the final volume
liberstina [14]

Answer:

M KIO3 = 1.254 mol/L

Explanation:

  • molarity (M) [=] mol/L

∴ w KIO3 = 553 g

∴ mm KIO3 = 214.001 g/mol

∴ volumen sln = 2.10 L

⇒ mol KIO3 = (553 g)×(mol/210.001 g) = 2.633 mol

⇒ M KIO3 = (2.633 mol KIO3 / (2.10 L sln)

⇒ M KIO3 = 1.254 mol/L

3 0
3 years ago
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CN- is a Bronsted - Lowry base. What will this substance form when it accepts a proton?
sergejj [24]
It will form HCN Hydrogen Cyanide.
8 0
3 years ago
Predict the chemical formula of the compound that will form when Li and o interact.
Ksivusya [100]

Answer:

Li_2O

Explanation:

Hello!

In this case, when looking over the chemical formula of a compound formed when two elements interact, we need to realize about their location in the periodic table; thus, since lithium is a metal and oxygen a nonmetal, we infer lithium turns out the cation and oxygen the anion. Moreover, as the oxidation state of lithium is 1+ and that of oxygen is 2-, we can set up the chemical formula as follows:

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Best regards!

4 0
2 years ago
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nirvana33 [79]
Question is irrelevant
7 0
2 years ago
Is a forward or reverse reaction favored?
Alex Ar [27]

Answer:

(a) CH_3COOH \rightleftharpoons CH_3COO^-+ H^+: reverse reaction is favored.

(b) AgCl \rightleftharpoons Ag^+ + Cl^-: reverse reaction is favored.

(c) Al(OH)_3 \rightleftharpoons Al^{3+} + 3OH^-: reverse reaction is favored.

(d) A+B\rightleftharpoons C: forward reaction is favored.

Explanation:

Hello,

(a) CH_3COOH \rightleftharpoons CH_3COO^-+ H^+:

In this case, since the Ka is lower than 1, we infer the reverse reaction is favored since the reactant (acetic acid) will tend to have a higher concentration.

(b) AgCl \rightleftharpoons Ag^+ + Cl^-:

In this case, since the Ka is lower than 1, we infer the reverse reaction is favored since the reactant (silver chloride) will tend to have a higher concentration.

(c) Al(OH)_3 \rightleftharpoons Al^{3+} + 3OH^-

In this case, since the Ka is lower than 1, we infer the reverse reaction is favored since the reactant (aluminium hydroxide) will tend to have a higher concentration.

(d) A+B\rightleftharpoons C

In this case, since the Ka is greater than 1, we infer the forward reaction is favored since the product (C) will tend to have a higher concentration.

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6 0
3 years ago
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