Procedure: 1. Set up the calorimeter apparatus, as shown. 2. Obtain the mass of the paraffin wax before it is lit and record it in the data table below. 3. Measure 100.0 mL of water and add it to the calorimeter. Record the mass of the calorimete and water together. Record the temperature of the water, as accurately as possible. 4. Light the candle and immediately place it under the can. Adjust the height of the can so that tip of the flame is 1cm or less below the can. 5. Occasionally, stir the water gently. Watch for the temperature to increase by roughly 10°C above the starting temperature. Record the maximum temperature reached as accurately as possible. 6. Blow out the candle and remove it from the base of the calorimeter. Allow it to cool.

Procedure: 1. Set up the calorimeter apparatus, as shown. 2. Obtain the mass of the paraffin wax before it is lit and record it in the data table below. 3. Measure 100.0 mL of water and add it to the calorimeter. Record the mass of the calorimete and water together. Record the temperature of the water, as accurately as possible. 4. Light the candle and immediately place it under the can. Adjust the height of the can so that tip of the flame is 1cm or less below the can. 5. Occasionally, stir the water gently. Watch for the temperature to increase by roughly 10°C above the starting temperature. Record the maximum temperature reached as accurately as possible. 6. Blow out the candle and remove it from the base of the calorimeter. Allow it to cool.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.

Question

Identify two sources of error in this experimentation.

Procedure:
1. Set up the calorimeter apparatus, as shown.
2. Obtain the mass of the paraffin wax before it is lit and record it in the data table below.
3. Measure 100.0 mL of water and add it to the calorimeter. Record the mass of the calorimeter
and water together. Record the temperature of the water, as accurately as possible.
4. Light the candle and immediately place it under the can. Adjust the height of the can so that the
tip of the flame is 1cm or less below the can.
5. Occasionally, stir the water gently. Watch for the temperature to increase by roughly 10°C
above the starting temperature. Record the maximum temperature reached as accurately as
possible.
6. Blow out the candle and remove it from the base of the calorimeter. Allow it to cool.

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The answer must have the correct units and the correct number of significant figures and show me all steps. Part 2: Determination of the Specific Heat Capacity of a Penny Calorimeter Initial Temperature =_____________ Final Temperature =______________ Temperature change = ___________________ Heat capacity (Kc) = __________________ Heat of Calorimeter (q) = ________________
How can you measure heat of reaction using bomb calorimeter? Explain.
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When salicylic acid, C-H,0,, is burned in a bomb calorimeter with a heat capacity of 2.046 x 10* J/°C, 87.7 kJ heat is produced and the temperature increases to 26.10 °C. Calculate the initial 22 - temperature. O A) 30.39 B) 17.52 C) 15.52 D) 16.00 E) 21.81
they are the part of one question. kindly do all A,B,C
SUBJECT : GENERAL CHEMISTRY 2 TOPIC : HEAT AND CALORIMETRY
Mass of aluminum can 38.57 Mass of aluminum can and water 138.68 Mass of water 99.15 Initial mass of paraffin wax candle (before the experiment) 10.56 Final mass of paraffin wax candle (after the experiment) 10.45 Mass of paraffin wax consumed 0.16 Initial temperature of water and aluminum can calorimeter 23.3 Final temperature of water and aluminum can calorimeter 29.5 Change in temperature 0.4 Calculate the molar enthalpy of combustion for paraffin wax.