Examl 2:l CHMl 101/l CHM101l (NEWl
2025/l 2026l Update)l Introductionl tol General,l Organic,l andl Biochemistryl Review|l Questionsl &l Answers|l Gradel A|l 100%l Correctl (Verifiedl Solutions)-l GCU
Q:l Howl manyl molesl ofl hydrogenl atomsl andl howl manyl molesl ofl oxygenl atomsl arel inl 2.4l *l 10^24l waterl molecules?
Answer:
8.0l moll H 4.0l moll O
Q:l Molarl massl equals
Answer:
g/mol
Q:l Molarl Massl forl K2O
Answer:
94.20l g/mol
Q:l Al boxl ofl tablel salt,l NaCl,l containsl 737l gl ofl NaCl.l Howl manyl molesl ofl NaCll arel inl thel box?
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Answer:
12.6l moll NaCl
Q:l Allyll Sulfide,l C6H10S,l isl al compoundl thatl hasl thel odorl ofl garlic.l Howl manyl molesl ofl C6H10Sl arel inl 225l g?
Answer:
1.97l moll C6H10S
Q:l Howl manyl molesl arel therel inl 50l mgl ofl Prozacl (C17H18F3NO)?
Answer:
1.6l *10^-4l mol
Q:l Inl al chemicall reactionl ,l ______l isl writtenl tol thel leftl ofl thel arrowl andl ______l arel writtenl onl thel right.
Answer:
reactants;l products
Q:l Balancel &l typel ofl reaction:l Al(s)l +l Cl2(g)l -->l AlCl3(s)
Answer:
2Al(s)l +l 3Cl2(g)l -->l 2AlCl3(s)l &l combination
Q:l Balancel &l typel ofl reaction:l Na3PO4l +l MgCl2l -->l Mg3(PO4)2l +l NaCl 2 / 3
Answer:
2Na3PO4l +l 3MgCl2l -->l 1Mg3(PO4)2l +l 6NaCll &l doublel replacement
Q:l Balancel &l typel ofl reaction:l C6H12O6l +l O2l -->l CO2l +l H2O
Answer:
1l C6H12O6l +l 6O2l -->l 6CO2l +l 6H2Ol &l combustion
Q:l Usingl 4Fe(s)l +l 3O2(g)l -->l 2Fe2O3(s)
Howl manyl molesl ofl Fe2O3l canl forml froml 6.0l molesl ofl O2?
Answer:
4l molsl Fe2O3
Q:l Usingl 4Fe(s)l +l 3O2(g)l -->l 2Fe2O3(s)
Howl manyl molesl ofl Fel arel neededl forl thel reactionl ofl 12.0l molesl ofl O2?
Answer:
16l moll Fe
Q:l Usingl 2l C8H18l +l 25l O2l -->l 16l CO2l +l 18l H2Ol
Howl manyl molesl ofl O2l arel neededl tol reactl fullyl withl 4l molesl ofl octane?
Answer:
50l moll O2
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