Organic acids are a homologous series of compounds having the carboxylic group-COOH joined to an alkyl radical.
(a) What is the general formula for organic acids?
(b) Draw the structure of butanoic acid.
(c) A reaction between an alcohol and an organic acid is described as
esterification and this is similar to neutralisation
(i) Ethylethanoate is an ester. Name two reagents used to prepare it.
(ii) State two ways in which esterification is different from neutralisation.
(iii) Write a balanced chemical equation for the esterification of ethylethanoate.
) Calculate the mass of ethylethanoate formed from 15g of the organic acid.
[Total: 1
Cooh

Which is true of the reactants in this displacement reaction? fe + 2hcl fecl2 + h2 a. the reactants are located to the left of the arrow in the chemical equation. b. the reactants contain 1 iron atom, 2 hydrogen atoms, and 1 chlorine atom. c. the reactants are the atoms, molecules, or compounds formed in the reaction. d. the reactants have the same physical and chemical properties as the products.

Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.

As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary