10.1 Die onvolledige vergelykings hieronder toon die vier stappe betrokke by die nywerheidsbereiding van swawelsuurl (H2SO4) - NSC Physical Sciences - Question 10 - 2021 - Paper 2
Question 10
10.1 Die onvolledige vergelykings hieronder toon die vier stappe betrokke by die nywerheidsbereiding van swawelsuurl (H2SO4). A en B verteenwoordig twee verbindings.... show full transcript
Worked Solution & Example Answer:10.1 Die onvolledige vergelykings hieronder toon die vier stappe betrokke by die nywerheidsbereiding van swawelsuurl (H2SO4) - NSC Physical Sciences - Question 10 - 2021 - Paper 2
Step 1
10.1.1 Verbinding A
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Answer
Verbinding A is swaweldioksied, wat chemies geskryf word as SO2.
Step 2
10.1.2 Verbinding B
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Verbinding B is swaweltrioksied, wat 'n chemiese formule van SO3 het.
Step 3
10.1.3 Die katalisator wat in Stap II gebruik word
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Die katalisator wat in Stap II gebruik word is vanadium(V) oksied, V2O5.
Step 4
10.1.4 Skryf ‘n gebalanseerde vergelyking vir hierdie reaksie neer
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Die gebalanseerde vergelyking wat die reaksie van ammoniumnitraat met swawelsuur aandui is:
H2SO4+2NH3→(NH4)2SO4
Step 5
10.2.1 Skryf die betekenis van NPK neer
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NPK is 'n afkorting vir stikstof (N), fosfor (P) en kalium (K), wat die primêre voedingstowwe in kunsmis verteenwoordig.
Step 6
10.2.2 Die sak bevat 4 kg ammoniumnitraat, NH4NO3, wat die enigste bron van stikstof is. Bereken die massa van die kunsmis in die sak.
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Answer
Massa van stikstof in 4 kg NH4NO3 kan bereken word:
m(N)=8028×4=1,4 kg
Die totale massa kunsmis bevat, insluitend kalium en fosfor, is 8,4 kg.
