Page 110 - Theory and Problems of BEGINNING CHEMISTRY

CHAP. 6] INORGANIC NOMENCLATURE 99

Ans. (a) Iron(II) bromide and iron(III) bromide, FeBr 2 and FeBr 3 (b) Palladium(II) bromide and palladium(IV)
bromide, PdBr 2 and PdBr 4 (c) Mercury(I) bromide and mercury(II) bromide, Hg 2 Br 2 and HgBr 2 .
(The charges on the cations can be obtained from Table 6-4.)

6.40. Name and write formulas for each of the following: (a) the compound of bromine and potassium (b) the
compound of bromine and calcium, and (c) the compound of bromine and aluminum.

Ans. This answer is exactly the same as that of Problem 6.36. The metal is named first even if it is given last in
the statement of the problem.

6.41. Write the formula for each of the following compounds: (a) aluminum hydride, (b) calcium chloride,
(c) lithium oxide, (d) silver nitrate, (e) iron(II) sulfite, (f ) aluminum chloride, (g) ammonium carbonate,
(h) zinc sulfate, (i) iron(III) oxide, (j) sodium phosphate, (k) iron(III) acetate, (l) ammonium chloride,
and (m) copper(I) cyanide.

Ans. (a) AlH 3 (b) CaCl 2 (c)Li 2 O(d) AgNO 3 (e) FeSO 3 (f) AlCl 3 (g) (NH 4 ) 2 CO 3 (h) ZnSO 4
(l)NH 4 Cl (m) CuCN
(i)Fe 2 O 3 (j)Na 3 PO 4 (k) Fe(C 2 H 3 O 2 ) 3

NAMING INORGANIC ACIDS
6.42. Name the following acids: (a) HCl, (b) HClO, (c) HClO 2 ,(d) HClO 3 , and (e) HClO 4 .

Ans. (a) Hydrochloric acid (b) Hypochlorous acid (c) Chlorous acid (d) Chloric acid (e) Perchloric acid
6.43. Which acids of the prior problem are strong acids?

Ans. (a), (d), and (e)

6.44. Name the following compounds: (a) HCl (pure) and (b) HCl (in water solution).
Ans. (a) Hydrogen chloride (b) Hydrochloric acid

6.45. Write formulas for each of the following acids: (a) hydrobromic acid, (b) phosphorous acid, and
(c) hypobromous acid.
Ans. (a) HBr (b)H 3 PO 3 (c) HBrO

6.46. Name H 2 S in two ways.

Ans. Hydrogen sulfide and hydrosulfuric acid.
6.47. How many ionizable hydrogen atoms are there in HC 4 H 7 O 2 ?

Ans. One. Ionizable hydrogen atoms are written first. (The other seven hydrogen atoms will not react with metal
hydroxides.)

ACID SALTS
6.48. Write formulas for each of the following compounds: (a) ammonium hydrogen sulfate, (b) sodium
hydrogen sulfide, and (c) nickel(II) hydrogen carbonate.
Ans. (a)NH 4 HSO 4 (b) NaHS (c) Ni(HCO 3 ) 2

6.49. Write formulas for each of the following compounds: (a) sodium hydrogen phosphate, (b) sodium dihy-
drogen phosphate, and (c) magnesium hydrogen phosphate.

Ans. (a)Na 2 HPO 4 (b) NaH 2 PO 4 (c) MgHPO 4
(The charges must balance in each case.)