A LEVEL CHEMISTRY ASSESSMENT POINT 1 PAPER 2 (TOPICS 11, 16 and 17) Answer all questions

A-LEVEL CHEMISTRY
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ASSESSMENT POINT 1 k k




PAPER 2 k




(TOPICS 11, 16 and 17)
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Answerkallk questionsk

Maxk 80k marks




Name ……………………………………………………………..




Mark ……../80 ……....% Gradek ………




1

Pagek 1k ofk 18

,1. Gasesk Ak andk Bk reactk ask shownk ink thek followingk equation.

2A(g)k +k B(g) C(g)k +k D(g)

Thek initialk ratek ofk thek reactionk wask measuredk ink ak seriesk ofk experimentsk
atk ak constantk temperature.k Thek followingk ratek equationk wask determined.

ratek =k k[A]2

Ank incompletek tablek ofk datak fork thek reactionk betweenk Ak andk Bk isk shownk
ink thek table.
− − −

−
Initialk [A]k /k molk Initialk [B]k /k molk Initialk ratek /k molk dmk
Experiment 3
dm dm
3 3
− − sk 1k k
−
4.2k ×k 10−3 2.8k ×k 10−3
1 3.3k ×k 10k 5


2.8k ×k 10−3
2 7.9k ×k 10k 3
−


3 5.6k ×k 10k 3 1.8k ×k 10k 4




(a) Usek thek datak fromk Experimentk 1k tok calculatek ak valuek fork
thek ratek constant,k k,k atk thisk temperature.
Deducek thek unitsk ofk k.

Calculationk ............................................................................................
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Unitsk ......................................................................................................
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(3)

(b) Usek yourk valuek ofk kk fromk (a)k tok completek thek tablek fork thek
reaction
2

, Pagek 2k ofk 18