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IGCSE Chemistry > Topic 3: Stoichiometry > Flashcards

Topic 3: Stoichiometry Flashcards

1
Q

Tell me the formula of ammonia

A

NH3

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2
Q

Tell me the formula of calcium hydroxide

A

Ca(OH)2

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3
Q

Tell me the formula of carbon dioxide

A

CO2

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4
Q

Tell me the formula of copper sulfate

A

CuSO4

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5
Q

Tell me the formula of ethanol (alcohol)

A

C2H5OH

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6
Q

Tell me the formula of glucose.

A

C6H12O6

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7
Q

Tell me the formula of hydrochloric acid.

A

HCl

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8
Q

Tell me the formula of nitric acid.

A

HNO3

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9
Q

Tell me the formula of sodium carbonate

A

Na2CO3

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10
Q

Tell me the formula of sodium hydroxide

A

NaOH

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11
Q

Tell the formula of sulfuric acid

A

H2SO4

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12
Q

Define molecular formula.

A

The number of atoms of each element in one molecule of a compound

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13
Q

Define empirical formula

A

The simplest whole number ratio of atoms of each element in the compound

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14
Q

Draw the formula diagram of hydrogen

A
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15
Q

Draw the formula diagram of carbon dioxide

A
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16
Q

Draw the formula diagram of water.

A
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17
Q

Draw the formula diagram of ammonia

A
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18
Q

Write the ionic formula of hydrogen.

A

H+

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19
Q

Write the ionic formula of lithium

A

Li+

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20
Q

Write the ionic formula of sodium

A

Na+

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21
Q

Write the ionic formula of potassium

A

K+

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22
Q

Write the ionic formula of silver

A

Ag+

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23
Q

Write the ionic formula of ammonium

A

NH4+

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24
Q

Write the ionic formula of magnesium

A

Mg2+

25
Q

Write the ionic formula of iron(II)

A

Fe2+

26
Q

Write the ionic formula of calcium

A

Ca2+

27
Q

Write the ionic formula of zinc

A

Zn2+

28
Q

Write the ionic formula of lead

A

Pb2+

29
Q

Write the ionic formula of copper

A

Cu2+

30
Q

Write the ionic formula of barium

A

Ba2+

31
Q

Write the chemical formula of aluminium

A

Al3+

32
Q

Write the ionic formula of iron (III)

A

Fe3+

33
Q

Write the ionic formula of phosphate

A

PO43-

34
Q

Write the ionic formula of oxygen

A

O2-

35
Q

Write the ionic formula of carbonate

A

CO3-

36
Q

Write the ionic formula of sulfate

A

SO42-

37
Q

Write the ionic formula of sulfide

A

S2-

38
Q

Write the ionic formula of fluoride

A

F-

39
Q

Write the ionic formula of chloride

A

Cl-

40
Q

Write the ionic formula of bromide

A

Br-

41
Q

Write the formula of iodide.

A

I-

42
Q

Write the formula of nitrate.

A

NO3-

43
Q

Write the formula of hydroxide

A

OH-

44
Q

Write the formula of hydrogen carbonate

A

HCO3-

45
Q

Write the ionic equation of the reaction between AgNO3 and NaCl

A

AgNO3(aq) + NaCl (aq) —> AgCl(s) + NaNO3(aq)

46
Q

What is the mole.

A

The mole is the unit for the amount of substance

47
Q

Write the avogardo’s constant.

A

6.02 x 10^23

48
Q

Write the formula for finding the number of moles of a solid.

A

Mass x Mr = moles

49
Q

Write the formula to find the number of moles of gas at RTP

A

Volume of gas (dm3) x 24

50
Q
A
51
Q

What is a limiting reactant?

A

The reactant that is used up first

52
Q
A
53
Q

How do you calculate the concentration of a substance.

A

Mass/vol –> g/dm3

54
Q
A
55
Q
A
56
Q
A
57
Q

How do you find percentage yield?

A
58
Q

How do you calculate percentage purity?

A

IGCSE Chemistry (13 decks)

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