Reactions with halogens[ edit ] Main article: Free radical halogenation Alkanes react with halogens in a so-called free radical halogenation reaction.
Why do magnesium sulfate and calcium sulfate react differently with acid? We were told that it has to do with their solubilities Group 2 sulfates get less soluble down the group. Struggling to understand enthalpy change and what these questions mean, please help!
A value for the enthalpy of combustion of the alcohol C3H7OH was determined in the laboratory. The following results were obtained: The specific heat capacity of water is 4.
Identify the entities reduced and oxidized.
Given that the bond energy for the C-C bond is KJ mol-1 and that for the C-H bond is KJ mol-1, what would you expect to happen when a mixture of hydrocarbons is heated strongly? This is a 1 mark question so simple as possible please!
I did an experiment to find out the isotonic potential of potatoes by putting sections of potato chips in different salt solutions and weighing them before and after, and am now writing up my evaluation. My control variables the variables i keep the same are the potato chips size, i used the same potato for all the chips, and the time in which My control variables the variables i keep the same are the potato chips size, i used the same potato for all the chips, and the time in which i kept them in the solution for.
Why must each variable be controlled? Give the molecular formula for hexane, the sixth member of an homologous series. Give the molecular formula of the alkane which contains 14 carbon atoms.
How do you work this out? A hydrocarbon has It has a molecular mass of The question is worth 3 marks, please help!! Use your answers from parts b and c to determine the minimum mass of sodium carbonate needed to react completely with My answer to part b was 0.
Suggest why the manufacturer checks the concentration of the ethanoic acid in several batches of vinegar. Vinegar contains other substances which improve flavour.
Suggest one reason why these substances could affect the titration with sodium hydroxide please help?! Analysis of a pure sample of citric acid showed that it contained Use these data to show that the empirical formula of the acid is C6H8O7.
I don't understand how to do this without knowing their masses? Sucrose is used in antacid tablets to improve their taste. Suggest one reason why the presence of sucrose in the antacid tablet does not affect the titration with hydrochloric acid.ALLOW ECF enthalpy change of combustion of carbon dioxide and water – enthalpy of combustion of glucose.
ALLOW part of an alcohol. IGNORE part of a compound: ALLOW that determines its homologous series (c) (i).
Northgate High School Chemistry Department. AS Unit F Chains, Energy and Resources. Module Basic Concepts (Part 1) homologous series as a series of organic compounds having the same functional group but with each successive member differing by CH2, enthalpy change of combustion;.
Nov 02, · Relationship between enthalpy of combustion and number of carbons in simple alcohols belonging to the same homologous series In-text: (pfmlures.com, ) Your Bibliography: pfmlures.com (). Relationship between enthalpy of combustion and number of carbons in simple alcohols Alcohol.
[online] Encyclopedia. I am going to investigate the enthalpy change of combustion for the alcohol homologous series. I will investigate how alcohols with increasing number of carbons affect the enthalpy change when an alcohol goes under combustion.
The standard enthalpy of combustion of an alcohol (âH°comb) is the enthalpy change when one mole of an alcohol completely reacts with oxygen under standard thermodynamic conditions (temperature of 25°C and pressure of kPa). DATE: AUTHOR: mersufo enthalpy change between zinc and copper sulphate Teaching AS Chemistry Practical Skills - with headers Measuring the enthalpy changes of exothermic and endothermic reactions.
The enthalpy change of combustion for the alcohol homologous series. of. Moles Question! (Enthalpy changes and stuff) - The Student.