Drop In Flashcards
How do you create an ester
You need to do a condensation or dehydration with a carboxylic acid and an alcohol
What is an ester in terms of strucutre
It is a carboxylic acid without the OH group and without a H from the alcohol your removing H20
How do you name the ester
The first part from the carboxylic acid the second part from the alcohol. So ethyl from ethanoate carboxylic acid and methane ate from the alcohol
What is an easy way to identify esters
By smelling them
What indicator to use in titration and why
Methyl orange or phenolphthalein because they have a distinct end point or colour change unlike universal indicator
Why do a rough run
Because it fills the jet of the burrette
What is concordancey
It is when you have identical results in a titration it means you can end
How to calculate moles in a titration
Concentration X volume
How to convert from cm3 to dm3
Divide this by 1000
What does phenolphthalein change colour from
Pink to colourless
What colour change in methyl orange
Orange to green
What is equilibrium
The forward reaction is occurring at the same rate as the products become the reactants
What causes temporary hard water
Calcium hydro carbonate
What does calcium hydrocarbon ate break down in to
Calcium carbonate water and carbon dioxide
Not the calcium carbonate is insoluble
What is a resin
It is a solid polymer insoluble in water it is used in an ion exchange column
