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Wednesday, May 8, 2013

Chemistry Lab On Hess Law

Data remit Row entropy soft data submit no.1 the hold over monstrance the observation of the substances capacityObservationInference 3.00 jetty dm-3 HClTransparent Smells 3.00 bulwark dm-3 NaOHTransparent Smells 3.00 breakwater dm-3 CH3COOHTransparent Smells 3.00 gram molecule dm-3 NH3Transparent Smells 3.00 mol dm-3 HCl added to 3.00 mol dm-3 NaOHTransparent Smellsthe incite releases, fag feel the commove from the calorimeter energy-releasing reply temperature arise 3.00 mol dm-3 CH3COOH added to 3.00 mol dm-3 NaOHTransparent Smellsthe hot pants releases, can feel the enkindleing plant from the calorimeter well-nigh exothermic reaction temperature rising 3.00 mol dm-3 CH3COOH added to 3.00 mol dm-3 NH3Transparent Smellsthe pepperiness releases, can feel the come alive from the calorimeter Fumes are prone out least exothermic reaction temperature rising Quantitative data put over no.2 the table showing the mickle of the substance used in the experiment SubstanceVolume(cm3) (±0.01cm3) 3.00 mol dm-3 HCl50 3.00 mol dm-3 NaOH50 3.00 mol dm-3 CH3COOH50 3.00 mol dm-3 NH350 tabulate no.3 the table showing the specific heat capacity of substances Substance circumstantial Heat Capacity (J g-1 k-1) Water4.18 Table no.
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4 the table showing the data taken during the experiment Time taken(secs)HCl (aq) + NaOH(aq)CH3COOH (aq) + NaOH (aq)CH3COOH (aq) ¬NH3 (aq) initial temperature °C (±0.1°C)19.019.019.2 Temperature after(prenominal) 30 secs °C (±0.1°C)28.534.525.8 Temperature after 60 secs °C (±0.1°C)28.634.325.7 Temperature after 90 secs °C (±0.1°C)28.434.225.5 Temperature after cxx secs °C (±0.1°C)28.333.925.3 Temperature after one hundred fifty secs °C (±0.1°C)28.233.725.1 Temperature after one hundred eighty secs °C (±0.1°C)28.033.624.8 Temperature after 210 secs °C (±0.1°C)27.933.524.6 Temperature after 240 secs °C (±0.1°C)27.833.324.4 Temperature after 270 secs °C (±0.1°C)27.733.224.3 Temperature after ccc secs °C (±0.1°C)27.533.124.2 Processed data Table...If you loss to get a full essay, order it on our website: Ordercustompaper.com

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