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irakobra [83]
2 years ago
12

Give the chemical formula that corresponds to each of the following compounds: (a) Sodium tetrahydroxozincate(II) (b) Dichlorobi

s(ethylenediamine)cobalt(III) nitrate (c) Triaquabromoplatinum(II) chloride (d) Tetra-amminedinitroplatinum(IV) bromide
Chemistry
1 answer:
ladessa [460]2 years ago
5 0

Answer:

a. Na₂[Zn(OH)₄]

b. [Co(Cl)₂(en)₂]NO₃

c. [Pt(H₂O)₃Br]Cl

d. [Pt(NH₃)₃(NO₂)₂]Br₂

Explanation:

(a) Sodium tetrahydroxozincate(II)

Zincate(II) indicates the metal is Zn²⁺, tetrahydroxo are 4OH⁻, that is

[Zn(OH)₄]²⁻. As the molecule is a neutral salt of sodium:

<em>Na₂[Zn(OH)₄]</em>

(b) Dichlorobis(ethylenediamine)cobalt(III) nitrate

The metal is Co³⁺, bis(ethylenediamine) are (en)₂ and dichloro are 2 Cl⁻, that is:

[CoCl₂(en)]⁺

The counterion is NO₃⁻, that is:

<em>[CoCl₂(en)₂]NO₃</em>

(c) Triaquabromoplatinum(II) chloride

The metal is Pt²⁺, ligands are 3 H₂O and 1 Br⁻, that is:

[Pt(H₂O)₃Br]⁺

The counterion is Cl⁻:

<em>[Pt(H₂O)₃Br]Cl</em>

(d) Tetra-amminedinitroplatinum(IV) bromide

The metal is Pt⁴⁺, ligands are 2 NO₂⁻ anf 3 NH₃, that is:

[Pt(NH₃)₃(NO₂)₂]²⁺

As counterion is Br⁻ you need 2 Br⁻ for the neutral salt, that is:

<em>[Pt(NH₃)₃(NO₂)₂]Br₂</em>

<em></em>

I hope it helps!

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