Zadania z chemii IB HL

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Filtry i umiejętności1

(i) Outline the way in which ammonia behaves as a Lewis base during the formation of the complex ion $\ce{[Ag(NH3)2]+(aq)}$

. (ii) Determine the pH at 298 K of an aqueous ammonia solution of concentration 0.180

\mathrm{mol\,dm^{-3}}

. Use section 1 of the data…

An aqueous solution at 298 K has a pH of 9.20. $K_\mathrm{w} = [\ce{H+}][\ce{OH-}] = 1.00 \times 10^{-14}$ at 298 K What is the hydroxide ion concentration of the solution, in $\mathrm{mol\,dm^{-3}}$ ? A. $6.31 \times 10^{-10}$ B. $1.58 \times 10^{-9}$ C.…