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Where does the water come from that is given off when making an ester?

One hydrogen (-H) from the alcohol group (-OH) on the alcohol breaks off and joins with the alcohol (-OH) group that breaks off of the carboxylic acid (-COOH). So the -H from alcohol joins the -OH from carbo...
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Answered by Hannah P. • Chemistry tutor
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Define the "standard enthalpy change of atomisation".

This is a standard definition question that is relatively common in A level papers. The standar molar enthalpy change of atomisation is defined as the enthalpy change when 1 mol of an element in its standard...
DG
Answered by Daniel G. • Chemistry tutor
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What is an ionic bond?

An ionic bond is an electrostatic interaction between a cation(positive) and an anion(negative). These bonds are formed when a metal forms a compound with a non-metal. Metals lose electrons and become cation...
OP
Answered by Olivia P. • Chemistry tutor
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What is the effect of temperature on K(equilibrium constant)?

For this question we need to consider the equation: ΔStotal = ΔSsystem - ΔH/T For and exothermic reaction, - ΔH/T is positive. Therefore, as T increases - ΔH/T becomes more negative, ΔStotal becomes less pos...
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Answered by Olivia P. • Chemistry tutor
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What is the relationship between K and ΔS total?

ΔStotal=RlnK This equation means that if ΔStotal is large and positive then K is large (much greater than 1) and the position of equilibrium is well to the right (due to the equation ΔStotal = ΔSsystem - ΔH/...
OP
Answered by Olivia P. • Chemistry tutor
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