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- Increased surface area trial resulted in highest hydrogen gas production (3.82 moles), facilitating more effective reactions due to increased collision opportunities.
- Agitation trial produced 3.68 moles of hydrogen gas, enhancing dissolution and collisions, though some trials reached 100mL before 300 seconds, impacting accuracy.
- Decreased temperature trial yielded lowest hydrogen gas production (2.11 moles) due to reduced kinetic energy, leading to fewer collisions and slower reaction rates.
- Reduction in concentration trial (0.3 molar solvent) resulted in decreased reaction rate compared to controls (1.02 moles of hydrogen gas produced).
- Control averages were comparable, with only slight variations between trials.
- Conversion factor (4.09x10^-5) calculated using ideal gas law for moles per mL of H2 produced.
- Percent errors calculated for reaction rates compared to class averages.
- Factors of change calculated for trials compared to control average (e.g., agitation trial had 25% increase in reaction rate).
- Concentration calculations showed impact of concentration changes on reaction rates.
- Rate law predictions showed similar results for 20s trials but higher percent errors for 200s trials, likely due to variations in experimental conditions and human error.
- Possible sources of error include differences in experimental conditions, measurement accuracy, and equipment quality.
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