c. ENTHALPY OF SOLUTION Salt Sample: I Initial water temperature T:_21.3 Time Temp 10.30193 Calorimeter mass:...
B. ENTHALPY OF NEUTRALIZATION NaOH temp. 29 HCl temp.: 22.0 Average temp. T: 22.06 Time Temp 0:30 29.7 Calorimeter mass: 3.872 200 29.7 Calorimeter + HCl mass: 54.5292 130 129.7 2:00 226 Calorimeter + HCI + NaOH mass: 105.174 2.30 22.629.7 3:00 295 3:30 225 4:00224 4:30 29.4 295. 5:00 29.3 29.4 ]296 129.3 22.0 Final pH: 2 0:30 -1:00 1:30 14:00 15:00 4:30 8 8 Calculations: Moles NaOH: Moles HCI: Limiting Reagent: Calculated molar enthalpy of neutralization: kJ/mol Literature...
In lab, a student weighed out 3.281 g of an unknown salt. Her coffee cup calorimeter weighed 36.763 g. After adding water it weighed 94.732 g. Before the addition of salt, the temperature of the water in the coffee cup was 19.5 d e g r e e s C . After all the salt dissolved the maximum temperature was 25 d e g r e e s C . Calculate the enthalpy of solution for the salt, d e...
In problems I, II, and III: Calorimeter constant is 0.00 j/degree C Specific Heat of water or aqueous solutions is 4.18 j/g degree C I. 76.9619 g of metal were heated to 100.7 degree C and poured into a calorimeter containing 46.30 g of water at 25.00 degree C. After stirring, the temperature of the water rose rapidly to 32.40 degree C before slowly starting to fall. Calculate: a) The Specific Heat of the metal b) The Atomic Weight Calculated...
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C. Molar Heat of Solution NaOH 11. Temperature of water before (°C) 12. Mass of solid (s) 13. Temperature of water after (°C) 14. Heat change of solution (cal) 15. Molecular mass of solid (g/mole) Nac NHACI 19°C 18.5C 1900 1.Solog 1.500g 1.4869 182 14.8 30°C 16. Number of moles of solid 17. Molar heat of solution (kcal/ mole)
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Reaction 2 (Ma Reaction 1 (Mgo) 1. Volume of 1.00 M HCT 2. Final temperature, t 3. Initial temperature, t, EO.O ml 50.0 mt 28 a0 oc 4. Change in temperature, t 5. Mass of solid 203 MgO 6. Heat, q k.J kJ kJ k.I 8. Moles mol Mg mol MgO 9. ΔΗ/mol kJ/mol kJ/mol 10. Determine ΔΗ/mol Mg for reaction (4). (10.) II. Percent...
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uploaded everything that was given. Where would I find the
experiemental values?
Complete the calculation summary below. READ THE EXPERIMENTAL DISCUSSION FIRST! REPORT ALL ANSWERS TO THE CORRECT SIGNIFICANT FIGURES. SHOW CALCULATION SET-UP on the next page. PART B: Molarity Determination via Solution Stoichiometry 7.625 g Mass of Empty 50 mL Beaker 7.976 g Mass of Beaker and NaCl (final heating) Mass of NaCl Produced (Experimental Yield of NaCl) moles Moles of Na,CO, Consumed 0.00500 Liter Volume of Na,CO,...