Die vloeidiagram hieronder toon die stappe wat gebruik word om kunsmisstowwe X en Y te berei - NSC Physical Sciences - Question 10 - 2018 - Paper 2
Question 10
Die vloeidiagram hieronder toon die stappe wat gebruik word om kunsmisstowwe X en Y te berei. Byskrifte I en II stel tipe chemiese reaksies voor en P is 'n verbindin... show full transcript
Worked Solution & Example Answer:Die vloeidiagram hieronder toon die stappe wat gebruik word om kunsmisstowwe X en Y te berei - NSC Physical Sciences - Question 10 - 2018 - Paper 2
Step 1
10.1.1 I
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Answer
Die reaksie in skrif I is die Katalitiese oksidasie (Catalytic oxidation) van ammoniak.
Step 2
10.1.2 II
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Die reaksie in skrif II is 'n Neutralisasie (Neutralization) of suur-basisreaksie.
Step 3
10.2.1 Verbinding P
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Die naam van verbinding P is ammoniumnitraat, met die formule NH₄NO₃.
Step 4
10.2.2 Die bruin gas
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Die bruin gas wat in die reaksie vorm is stikstofdioxide, met die formule NO₂.
Step 5
10.2.3 Vloeistof C
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Vloeistof C is salpetersuur, met die formule HNO₃.
Step 6
10.3.1 Die voorbereiding van kunms X
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Die gebalanseerde vergelyking vir die voorbereiding van kunsmis X is:
ightarrow (NH₄)₂SO₄$$
Step 7
10.3.2 Reaksie I
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Die gebalanseerde vergelyking vir reaksie I is:
ightarrow 4NO + 6H₂O$$
Step 8
10.4 Kunsmis Y
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Die massa-persentasie stikstof in kunsmis Y (ammoniumnitraat) kan bereken word as volg:
Die molêre massa van NH₄NO₃ is 80 g/mol. Die totale massa van stikstof in NH₄NO₃ is 28 g/mol (2 stikstof atome), so die massa-persentasie stikstof is:
