Quantitative Definitions and Formulae

Question 1

Molecular Ion

Answer 1

Two or more atoms covalently bonded with an overall charge

Question 2

Avogadro’s Constant

Answer 2

Number of atoms in 12.000g of carbon-12

Question 3

Mole

Answer 3

The amount of subst which contains the Avogadro’s constant of atoms, molecules or groups of ions

Question 4

Molar Mass

Answer 4

The mass of one mole of a subst

Question 5

Anhydrous Salt

Answer 5

A salt which contains no water of crystallisation

Question 6

Hydrated Salt

Answer 6

A salt which contains water of crystallisation

Question 7

Water of Crystallisation

Answer 7

Water chemically bonded within a crystal structure

Question 8

What is the chem name of sulfate SO2-4?

Answer 8

Sulfate (VI)

Question 9

What is the chem name of sulfite (SO2-3)?

Answer 9

Sulfate (IV)

Question 10

What is equ of thiosulfate?

Answer 10

S2(2-)O3

Question 11

What is equ of hydrogensulfate?

Answer 11

HSO4-

Question 12

What is equ of hydrogencarbonate?

Answer 12

HCO3-

Question 13

What is equ of carbonate ion?

Answer 13

CO3 (2-)

Question 14

What is chem name of nitrate No3-

Answer 14

Nitrate (V)

Question 15

What is the chem name of nitrite (No-2)

Answer 15

Nitrate (III)

Question 16

What is the equ of phosphate?

Answer 16

PO4(3-)

Question 17

What is the chem name of chlorate CLO3 (-)?

Answer 17

Chlorate (V)

Question 18

What is the chem name of hypochlorite (ClO-)?

Answer 18

Chlorate (I)

Question 19

What is the equ of dichromate?

Answer 19

CR2072-

Question 20

What is the equ of chromate?

Answer 20

CrO4 (2-)

Question 21

What is the chem name of permanganate? MnO4 (-)?

Answer 21

Manganate (VII)