wednesday 12 may 2010 (afternoon) instructions to … · i. the electronegativity of the elements...

2210-6110 13 pages

M10/4/CHEMI/SPM/ENG/TZ1/XX+

Wednesday 12 May 2010 (afternoon)

CHEMISTRYSTandaRd lEvElPaPER 1

INSTRUCTIONS TO CANDIDATES

• Do not open this examination paper until instructed to do so.• Answer all the questions.• For each question, choose the answer you consider to be the best and indicate your choice on

the answer sheet provided.• The periodic table is provided for reference on page 2 of this examination paper.

45 minutes

© International Baccalaureate Organization 2010

2 2 1 0 6 1 1 0

2210-6110

–2– M10/4/CHEMI/SPM/ENG/TZ1/XX+

88Ra

(226)

56Ba

137.34

38Sr

87.62

20Ca

40.08

12Mg

24.31

4Be

9.01

2

‡

†

89 ‡Ac

(227)

57 †La

138.91

39Y

88.91

21Sc

44.96

90Th

232.04

58Ce

140.12

72Hf

178.49

40Zr

91.22

22Ti

47.90

91Pa

231.04

59Pr

140.91

73Ta

180.95

41Nb

92.91

23V

50.94

92U

238.03

60Nd

144.24

74W

183.85

42Mo

95.94

24Cr

52.00

55Cs

132.91

37Rb

85.47

19K

39.10

11Na

22.99

3Li

6.94

1H

1.01

1

Fr87

(223)

Atomic Number

Element

Atomic Mass

93Np

(237)

61Pm

146.92

75Re

186.21

43Tc

98.91

25Mn

54.94

94Pu

(242)

62Sm

150.35

76Os

190.21

44Ru

101.07

26Fe

55.85

95Am

(243)

63Eu

151.96

77Ir

192.22

45Rh

102.91

27Co

58.93

96Cm

(247)

64Gd

157.25

78Pt

195.09

46Pd

106.42

28Ni

58.71

97Bk

(247)

65Tb

158.92

79Au

196.97

47Ag

107.87

29Cu

63.55

The Periodic Table

98Cf

(251)

66Dy

162.50

80Hg

200.59

48Cd

112.40

30Zn

65.37

99Es

(254)

67Ho

164.93

81Tl

204.37

49In

114.82

31Ga

69.72

13Al

26.98

5B

10.81

3

100Fm

(257)

68Er

167.26

82Pb

207.19

50Sn

118.69

32Ge

72.59

14Si

28.09

6C

12.01

4

101Md

(258)

69Tm

168.93

83Bi

208.98

51Sb

121.75

33As

74.92

15P

30.97

7N

14.01

5

102No

(259)

70Yb

173.04

84Po

(210)

52Te

127.60

34Se

78.96

16S

32.06

8O

16.00

6

103Lr

(260)

71Lu

174.97

85At

(210)

53I

126.90

35Br

79.90

17Cl

35.45

9F

19.00

7

86Rn

(222)

54Xe

131.30

36Kr

83.80

18Ar

39.95

10Ne

20.18

2He4.00

0

88 Ra

(226

)

56 Ba13

7.34

38 Sr87

.62

20 Ca

40.0

8

12 Mg

24.3

1

4 Be 9.012

‡†

89 ‡

Ac

(227

)

57 †

La13

8.91

39 Y88

.91

21 Sc 44.9

6

90 Th23

2.04

58 Ce

140.

12

72 Hf

178.

49

40 Zr 91.2

2

22 Ti47

.90

91 Pa23

1.04

59 Pr14

0.91

73 Ta18

0.95

41 Nb

92.9

1

23 V50

.94

92 U23

8.03

60 Nd

144.

24

74 W18

3.85

42 Mo

95.9

4

24 Cr

52.0

0

55 Cs

132.

91

37 Rb

85.4

7

19 K39

.10

11 Na

22.9

9

3 Li 6.941 H 1.011 Fr87 (223

)

Ato

mic

Num

ber

Elem

ent

Ato

mic

Mas

s

93 Np

(237

)

61 Pm14

6.92

75 Re

186.

21

43 Tc 98.9

1

25 Mn

54.9

4

94 Pu (242

)

62 Sm15

0.35

76 Os

190.

21

44 Ru

101.

07

26 Fe 55.8

5

95 Am

(243

)

63 Eu15

1.96

77 Ir19

2.22

45 Rh

102.

91

27 Co

58.9

3

96 Cm

(247

)

64 Gd

157.

25

78 Pt19

5.09

46 Pd10

6.42

28 Ni

58.7

1

97 Bk (247

)

65 Tb15

8.92

79 Au

196.

97

47 Ag

107.

87

29 Cu

63.5

5

The

Peri

odic

Tab

le

98 Cf

(251

)

66 Dy

162.

50

80 Hg

200.

59

48 Cd

112.

40

30 Zn 65.3

7

99 Es (254

)

67 Ho

164.

93

81 Tl20

4.37

49 In11

4.82

31 Ga

69.7

2

13 Al

26.9

8

5 B10

.81

3

100

Fm (257

)

68 Er16

7.26

82 Pb20

7.19

50 Sn11

8.69

32 Ge

72.5

9

14 Si28

.09

6 C12

.01

4

101

Md

(258

)

69 Tm16

8.93

83 Bi20

8.98

51 Sb12

1.75

33 As

74.9

2

15 P30

.97

7 N14

.01

5

102

No

(259

)

70 Yb

173.

04

84 Po (210

)

52 Te12

7.60

34 Se78

.96

16 S32

.06

8 O16

.00

6

103

Lr (260

)

71 Lu17

4.97

85 At

(210

)

53 I12

6.90

35 Br 79.9

0

17 Cl

35.4

5

9 F19

.00

7

86 Rn

(222

)

54 Xe

131.

30

36 Kr

83.8

0

18 Ar

39.9

5

10 Ne

20.1

8

2 He

4.000

2210-6110

–3–

Turn over


1. Whichamountofthefollowingcompoundscontainstheleastnumberofions?

A. 2molofNaOH

B. 1molofNH4Cl

C. 2molofCaCl2

D. 1molofAl2O3

2. Whatistheapproximatemolarmass,ingmol–1,ofMgSO H O4 27 ?

A. 120

B. 130

C. 138

D. 246

3. Whichisbothanempiricalandamolecularformula?

A. C5H12

B. C5H10

C. C4H8

D. C4H10

2210-6110


4. 12moleculesofhydrogengas,H2(g),and5moleculesofoxygengas,O2(g),weremixedtogetherunderconditionswhichallowedthereactiontogotocompletion,accordingtothefollowingequation.

2H (g) O (g) 2H O(g)2 2 2+ →

Thefollowingdiagramrepresentsthemixtureofreactants.

Key:

Oxygenatom

Hydrogenatom

Whichdiagramrepresentsthereactionmixturewhenthereactionwascomplete?

A.

B.

C.

D.

2210-6110

–5–

Turn over


5. Whichofthefollowingisanisotopeof 1224Mg ?

A. 1224Mg2+

B. 1226Mg

C. 1342Mg

D. 1326Mg

6. Whichdescribesthevisibleemissionspectrumofhydrogen?

A. Aseriesoflinesconvergingatlongerwavelength

B. Aseriesofregularlyspacedlines

C. Aseriesoflinesconvergingatlowerenergy

D. Aseriesoflinesconvergingathigherfrequency

7. Whichstatementsabouttheperiodictablearecorrect?

I. Elementsinperiod3havesimilarchemicalproperties.

II. Elementsingroup7showagradualchangeinphysicalproperties.

III. Thepositionofanelementinperiod3isrelatedtothenumberofelectronsinthehighestoccupiedenergylevel.

A. IandIIonly

B. IandIIIonly

C. IIandIIIonly

D. I,IIandIII

2210-6110


8. Whichstatementsaboutperiod3arecorrect?

I. Theelectronegativityoftheelementsincreasesacrossperiod3.

II. Theatomicradiioftheelementsdecreasesacrossperiod3.

III. Theoxidesoftheelementschangefromacidictobasicacrossperiod3.

A. IandIIonly

B. IandIIIonly

C. IIandIIIonly

D. I,IIandIII

9. Whichisthebestdescriptionofthebondingpresentintheammoniumion,NH4+?

A. Sharingofelectronsbetweenatoms

B. Electrostaticattractionbetweenions

C. Electrostaticattractionbetweenpositiveionsanddelocalizedelectrons

D. Sharingofelectronsbetweenatomsandelectrostaticattractionbetweenions

10. Theformulaofcerium(III)sulfateisCe2(SO4)3.Whatisthecorrectformulaofcerium(III)phosphate?

A. CeP

B. Ce2(PO4)3

C. Ce3(PO4)2

D. CePO4

2210-6110

–7–

Turn over


11. Whichmoleculehastheshortestcarbon-oxygenbondlength?

A. CH3COOH

B. CH3CH2OH

C. CO2

D. CO

12. Whichpairofcompoundsisarrangedincorrectorderofrelativeboilingpoints?

Lower Boiling Point Higher Boiling Point

A. H2S H2O

B. NH3 PH3

C. HF HCl

D. CH3COOH CH3CH2OH

13. Whichstatementaboutthebondingbetweencarbonatomsiscorrect?

A. InC60fullereneeachcarbonatomiscovalentlybondedtothreeothercarbonatoms.

B. InC60fullereneeachcarbonatomiscovalentlybondedtofourothercarbonatoms.

C. Ingraphiteeachcarbonatomiscovalentlybondedtofourothercarbonatoms.

D. Ingraphiteeachcarbonatomformsadoublecovalentbondwiththreeothercarbonatoms.

14. Whichintermolecularforcesexistbetweenmoleculesofcarbonmonoxide,CO?

A. HydrogenbondsandvanderWaals’forces

B. Dipole-dipoleattractionsandvanderWaals’forces

C. VanderWaals’forcesonly

D. Dipole-dipoleattractionsonly

2210-6110


15. Whichtypesofreactionarealwaysexothermic?

I. Neutralization

II. Decomposition

III. Combustion

A. IandIIonly

B. IandIIIonly

C. IIandIIIonly

D. I,IIandIII

16. Apurealuminiumblockwithamassof10gisheatedsothatitstemperatureincreasesfrom20 C to50 C .Thespecificheatcapacityofaluminiumis8.99 10 J g K1 1 1× − − − .WhichexpressiongivestheheatenergychangeinkJ?

A. 10 8.99 10 3031× × ×−

B. 10 8.99 10 301× × ×−

C. 10 8.99 10 3031× × ×−

1000

D. 10 8.99 10 301× × ×−

1000

17. Underwhichconditionswillthereactionbetween1.0gcalciumcarbonateandexcesshydrochloricacidbethefastest?Assumethatallreactionsarecarriedoutatthesametemperature.

A. Onelargepieceofcalciumcarbonateand2moldm–3hydrochloricacid

B. Onelargepieceofcalciumcarbonateand1moldm–3hydrochloricacid

C. Powderedcalciumcarbonateand2moldm–3hydrochloricacid

D. Powderedcalciumcarbonateand1moldm–3hydrochloricacid

2210-6110

–9–

Turn over


18. Powdered manganese(IV) oxide, MnO2(s), increases the rate of the decomposition reaction ofhydrogenperoxide,H2O2(aq).WhichstatementsaboutMnO2arecorrect?

I. TherateisindependentoftheparticlesizeofMnO2.

II. MnO2 provides an alternative reaction pathway for the decomposition with a loweractivationenergy.

III. AlltheMnO2ispresentafterthedecompositionofthehydrogenperoxideiscomplete.

A. IandIIonly

B. IandIIIonly

C. IIandIIIonly

D. I,IIandIII

19. Whichstatementiscorrectforacrystalofiron(II)sulfateinastateofequilibriumwithasaturatedsolutionofiron(II)sulfate?

stopper

flask

iron(II)sulfatesolutioniron(II)sulfatecrystal

A. Thecolourofthesolutiondarkensasthecrystalcontinuestodissolve.

B. Theconcentrationoftheiron(II)sulfatesolutionincreasesasthewaterevaporates.

C. Theshapeoftheiron(II)sulfatecrystaldoesnotchange.

D. Thecolourofthesolutiondoesnotchangebuttheshapeofthecrystalmaychange.

2210-6110


20. TheHaberprocessusesan ironcatalyst toconverthydrogengas,H2(g),andnitrogengas,N2(g),toammoniagas,NH3(g).

3H (g) N (g) 2NH (g)2 2 3+

Whichstatementsarecorrectforthisequilibriumsystem?

I. Theironcatalystincreasestheratesoftheforwardandreversereactionsequally.

II. Theironcatalystdoesnotaffectthevalueoftheequilibriumconstant,Kc.

III. Theironcatalystincreasestheyieldofammoniagas,NH3(g).

A. IandIIonly

B. IandIIIonly

C. IIandIIIonly

D. I,IIandIII

21. Whichpropertyischaracteristicofacidsinaqueoussolution?

A. Acidsreactwithammoniasolutiontoproducehydrogengasandasalt.

B. Acidsreactwithmetaloxidestoproduceoxygengas,asaltandwater.

C. Acidsreactwithreactivemetalstoproducehydrogengasandasalt.

D. Acidsreactwithmetalcarbonatestoproducehydrogengas,asaltandwater.

22. A student has equal volumes of 1.0moldm–3 sodium hydroxide and ammonia solutions.Whichstatementaboutthesolutionsiscorrect?

A. Sodiumhydroxidehasalowerelectricalconductivitythanammonia.

B. Sodiumhydroxidehasahigherhydrogenionconcentrationthanammonia.

C. SodiumhydroxidehasahigherpHthanammonia.

D. Sodiumhydroxidehasahigherhydroxideionconcentrationthanammonia.

2210-6110

–11–

Turn over


23. Whichdefinitionofoxidationiscorrect?

A. Lossofelectronsandadecreaseinoxidationnumber

B. Lossofelectronsandanincreaseinoxidationnumber

C. Gainofelectronsandadecreaseinoxidationnumber

D. Gainofelectronsandanincreaseinoxidationnumber

24. WhatistheIUPACnameofFe2O3?

A. Ironoxide

B. Iron(II)oxide

C. Iron(III)oxide

D. Di-irontrioxide

25. Whichlabelsoftheelectrolyticcellarecorrect?

4

2 1

Pt Pt

KBr(l) 3

1 2 3 4

A. siteofreduction siteofoxidation conductor electrolyte

B. siteofoxidation siteofreduction electrolyte conductor

C. siteofreduction siteofoxidation electrolyte conductor

D. siteofoxidation siteofreduction conductor electrolyte

+–

crucible

2210-6110


26. Whichisthebestdefinitionofstructuralisomers?

A. Compoundswhichhaveatomswiththesameatomicnumbersbutdifferentmassnumbers

B. CompoundswhichhavethesamegeneralformulabutdifferbyaCH2group

C. Compoundswhichhavethesameempiricalformulabutdifferentmolecularformulas

D. Compoundswhichhavethesamemolecularformulabutdifferentarrangementsofatoms

27. Whichisthecorrectclassificationofthesealcohols?

H C

H

H

C

H

H

C

OH

C

C

H

H

H

H

HH H C

H

H

C

H

H

C

C

H

C

H

H

HHH

OH

H C

H

H

C

H

OH

C

C

H

C

H

H

H

HH

H

1 2 3

1 2 3

A. tertiary secondary primary

B. tertiary primary secondary

C. tertiary tertiary secondary

D. secondary primary secondary

28. Whichsubstancesarepossibleproductsoftheincompletecombustionofoctane?

A. Carbondioxideandhydrogengas

B. Carbonmonoxideandwatervapour

C. Carbonmonoxideandhydrogengas

D. Methaneandhydrogengas

2210-6110


29. Whichstructurecouldrepresentarepeatingunitofapolymerformedfrompropene?

A. ( CH2–CH(CH3) (

B. ( CH2–CH2–CH2 (

C. ( CH(CH3)–CH(CH3) (

D. ( CH2–CH2 (

30. Whichexperimentalprocedureismostlikelytoleadtoalargesystematicerror?

A. Determiningtheconcentrationofanalkalibytitrationwithaburette

B. Measuringthevolumeofasolutionusingavolumetricpipette

C. Determiningtheenthalpychangeofneutralizationinabeaker

D. Measuringthevolumeofagasproducedwithagassyringe

wednesday 12 may 2010 (afternoon) instructions to … · i. the electronegativity of the elements...

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