Zadania z chemii IB SL

Hex-1-ene, $\ce{CH2=CHCH2CH2CH2CH3}$, is used to manufacture poly(hex-1-ene). (i) Complete the diagram to show the repeating unit of poly(hex-1-ene). (ii) State the type of polymerization that occurs.

A compound used to make polymers, hexanedioic acid, can be produced by a series of reactions starting from cyclohexane. (i) Deduce how reactant A is related to hex-1-ene. (ii) For the C=O functional group present in intermediate C, state its structural…

Hexanoic acid, $\ce{CH3(CH2)4COOH}$, is a weak acid. The graph shows how the pH changes during the titration of a 20.0 $\mathrm{cm^3}$ aqueous solution of hexanoic acid with aqueous sodium hydroxide. (i) Deduce an expression for the equilibrium constant, $K$,…

4.06 g of hydrated magnesium chloride, $\ce{MgCl2*6H2O}$ ($M_\mathrm{r}$ = 203), is dissolved in water to make 0.250 $\mathrm{dm^3}$ of solution. What is the concentration of chloride ions, in $\mathrm{mol\,dm^{-3}}$, in this solution? A. 0.0400 B. 0.0800 C.…

This half-cell needs an aqueous solution containing $\ce{Ni^2+}$ ions. State the formula of a compound that would supply this solution when dissolved in water.

Describe the setup needed to join the $\ce{Ni^2+}$ | $\ce{Ni}$ half-cell to a second half-cell so that the completed cell lights a bulb.

State the SI-derived unit used to measure the size of the current flowing through the bulb.

State what type of reaction this is.

Using curly arrows to show the movement of electron pairs, sketch the mechanism of this reaction.