Experiment # 4: Analysis of Soda Ash Experiment # 5: Volumetric Analysis of a Carbonate – Bicarbonate Mixture Submitted by: Eugenio December 2012 Department of Chemical Engineering University of Santo Tomas España‚ Manila Abstract Soda ash is the common name for sodium carbonate (NaCO3)‚ a chemical salt derived from carbonic acid. It is frequently used in manufacturing‚ industry‚ and in domestic chores. Glass production is one of the primary industrial uses for sodium carbonate. It is also
Premium Hydrochloric acid Sodium carbonate Sodium bicarbonate
found forming in saline lakes‚ or one may find it in Boron‚ California. Historically‚ “the first Borax specimens came from several dry lake deposits in Tibet” (The Mineral Borax). This experiment was conducted to determine the standard entropy and enthalpy of the dissolving reaction of borax in water. The thermodynamic properties of the reaction helped to determine the change in heat and spontaneity within the system. Entropy is said to be the tendency for the universe to move towards disorder. If
Premium Thermodynamics Entropy Energy
CHEMISTRY Guess Paper – 2013 Class – XI Subject - CHEMISTRY MAX MARKS=90 ……………………………………………………………………………………… General instructions: All questions are compulsory. Marks for each question are indicated against it. Questions number 1to 8 are very short –answer questions‚ carrying 1 mark each. Answer these in one word or about one sentence each. Questions number 9 to18 are short –answer questions‚ carrying 2 marks each. Answer these in about 30 words each. Questions number19 to27
Premium Periodic table Alkaline earth metal Quantum mechanics
if a reaction can be carried out in a series of steps‚ the sum of the enthalpies for each step should equal the enthalpy change for the total reaction. This statement emphasizes the conservation not only of matter‚ but also of energy. If certain reactions are difficult to study‚ their enthalpy can be calculated from Hess# law. The purpose of this experiment is to use a calorimeter with a thermometer to investigate the enthalpy changes in several different reactions. After all the data have been collected
Premium Enthalpy Chemical reaction Thermodynamics
systems to determine the change in enthalpy of the solution‚ which can b related to the change in internal energy of the solution. The van ’t Hoff isochore relates the equilibrium constant of a chemical reaction at one temperature to the equilibrium constant of the same reaction at a different temperature‚ allowing it to be worked out for all temperatures if it is known for one. The experiment used the solution of toluene and naphthalene to determine the change in enthalpy. The mole fractions and the tempterature
Premium Thermodynamics Benzene Temperature
repeating patterns within the periodic table & regular pattern in a property as you go from left to right across a period. Electrical conductivity - metallic elements good conductors Density - increases to a maximum in group 3‚ then falls. Ionisation enthalpy - Group 1-troughs - Group 0-peaks. Melting and boiling points - peaks group 4 - increases up to Group
Premium Atom Oxygen Periodic table
(KJ/mole) Number of Bonds Total (KJ/mole) C-H 412 7 2884 C=O 802 6 4812 C-C 348 2 696 H-O 463 8 3704 O=O 496 5 2480 C-O 366 1 366 O-H 463 1 463 Total 6889 Total 8516 Table 5: Shows the theoretical heat change in enthalpy for Propanol From the above results‚ the theoretical change in enthalpy can be calculated. The following calculation is done by Hess’s law: ∆H=∑Energy of broken bonds-∑Energy of bonds made=6889-8516= -1627 KJ/MoleExperimental Heat of Reaction: Energy Produced: q=mC∆T=100 ×4.18 ×14q=5852JEnergy
Premium Energy Thermodynamics Enthalpy
and the enthalpy of the reaction. A calorimeter is an adiabatic system so it does not exchange matter and energy with its surrounding which means: qrxn=-qcal In the experiment the students did‚ the instrument they used to measure the heat capacity‚ the heat‚ and enthalpy of the reaction is the constant pressure calorimeter‚ wherein the students use a Styrofoam ball and a 6” test tube with a stopper and thermometer inside it. The equations used to determine the heat capacity‚ enthalpy‚ heat of
Premium Thermodynamics Sodium Chemical reaction
The system uses refrigerant 134a and water as the working fluids. The power input of the system was measured. The rate of heat output and the coefficient of performance are to be determined. A sketch of the vapor-compression cycle on a pressure-enthalpy diagram is also to be presented. In order to perform this analysis the temperatures at the inlet and outlet of the condenser and evaporator were measured for both the refrigerant and the water. The flow rate of the refrigerant through the system
Premium Thermodynamics Heat Heat pump
Principles of Mass Transferand Separation Processes Binay K. Dutta Universiti Teknologi Petronas Malaysia New Delhi-110001 2009 PRINCIPLES OF MASS TRANSFER AND SEPARATION PROCESSES Binay K. Dutta © 2007 by PHI Learning Private Limited‚ New Delhi. All rights reserved. No part of this book may be reproduced in any form‚ by mimeograph or any other means‚ without permission in writing from the publisher. Cover photo — Courtesy: Haldia Petrochemicals Limited ISBN-978-81-203-2990-4
Premium Chemical engineering Diffusion Separation process