Q. No.What is the number of moles of hydrogen molecules required to produce 20 moles of ammonia through Haber's process?
1. 40
2. 10
3. 20
4. 30
\(\mathrm{CH}_4+\mathrm{O}_2 \longrightarrow \mathrm{CO}_2+\mathrm{H}_2 \mathrm{O}\)
How many moles of methane (\(\mathrm{CH_4}\)) will be required for the formation of 11 g of carbon dioxide (\(\mathrm{CO_2}\))?
| 1. | 0.25 | 2. | 0.62 |
| 3. | 0.17 | 4. | 1.23 |
\(2 \mathrm{KI}+\mathrm{HgI}_2 \rightarrow \mathrm{K}_2 \mathrm{HgI}_4\)
The number of moles of KI required to produce 0.4 moles of K2HgI4 is:
1. 0.4
2. 0.8
3. 3.2
4. 1.6
Methane reacts with oxygen according to the following chemical equation:
CH₄ + 2O₂ → CO₂ + 2H₂O
Calculate the mass of methane required to produce 22 g of carbon dioxide:
1. Eight (8)2. One (1)
3. Nine (9)
4. Seven (7)
During the reaction of 32.65 g of zinc with HCl, what is the volume of hydrogen gas liberated at STP?
(Given: Atomic mass of Zn=65.3u)
1. 20 L
2. 15.23 L
3. 11.2 L
4. 25.5 L
1. 2.24 litre
2. 4.48 litre
3. 20 litre
4. 22.4 litre
1. 1.00 L CO2 and 2.00 L H2O
2. 1.00 L CO2 and 4.00 L H2O
3. 2.00 L CO2 and 2.00 L H2O
4. 2.00 L CO2 and 4.00 L H2O
What is the number of moles of methane required to produce 22 g of CO₂(g) after complete combustion?
1. 1 mole
2. 0.5 mole
3. 1.5 mole
4. 2 mole
\(\mathrm{Ba}(\mathrm{s})+2 \mathrm{H}_2 \mathrm{O}(\mathrm{l}) \rightarrow \mathrm{Ba}(\mathrm{OH})_2(\mathrm{aq})+\mathrm{H}_2(\mathrm{~g})\)
What volume of hydrogen gas, at standard temperature and pressure (STP), is produced from 0.400 mol of barium?
| 1. | 8.96 L | 2. | 5.60 L |
| 3. | 4.48 L | 4. | 3.36 L |
Consider the following reaction:
Ag₂CO₃ → 2Ag + CO₂ + ½O₂
What is the weight of the residue (CO₂ and O₂) produced by 2.76 gram silver carbonate, upon strong heating?
1. \(2.16~g\)2. \(2.48~g\)
3. \(2.32~g\)
4. \(2.64~g\)
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