4 original questions from New Regents. The worksheet, answer key, and browser practice are free.
Separating Made Water From Incoming Water 4 questions
Separating Made Water From Incoming Water
Base your answers on the information provided and your knowledge of chemistry. Use the 2025 Chemistry Reference Tables as needed.
A reaction simulation uses a mixture of hydrogen and carbon monoxide. It runs only the two reactions shown and converts all of both fuels. The incoming stream may also carry some water vapor, which passes through unchanged. The detectors collect all the carbon dioxide made and all the water leaving the simulation.
2 H2 + O2 → 2 H2O
2 CO + O2 → 2 CO2
| Recorded quantity | Amount (mol) |
|---|---|
| O2 consumed | 0.050 |
| CO2 collected | 0.040 |
| Total water collected | 0.080 |
Question 1
Calculate the total amount of H₂ and CO consumed together. Use both equations and the O₂ reading.
Write your answer and work on the printable worksheet, or answer online.
Question 2
How much of that combined amount is CO?
- 0.020 mol
- 0.040 mol
- 0.080 mol
- 0.100 mol
Question 3
A student assigns all 0.080 mol of collected water to the first reaction. Evaluate the claim by calculating the amount of water made from H₂ and the amount carried in.
Write your answer and work on the printable worksheet, or answer online.
A repeat uses the same dry amounts of both gases. It supplies no incoming water vapor and again collects all products.
Question 4
Predict which of the three readings changes in the dry repeat and give the new value.
Write your answer and work on the printable worksheet, or answer online.
2025 Chemistry Reference Tables · Browse Chemistry worksheets