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Which of the following compounds or ions has the weakest conjugate base? Bricfly explain your choice.(a) HCN(b) HClO(c) $\mathrm{NH}_{4}^{+}$
Equal molar quantities of sodium hydroxide and sodium hydrogen phosphate $\left(\mathrm{Na}_{2} \mathrm{HPO}_{4}\right)$ are mixed.(a) Write the balanced, net ionic equation for the acidbase reaction that can, in principle, occur.(b) Does the equilibrium lie to the right or left?
Equal molar quantities of hydrochloric acid and sodium hypochlorite (NaClO) are mixed.(a) Write the balanced, net ionic equation for the acidbase reaction that can, in principle, occur.(b) Does the equilibrium lie to the right or left?
Calculate the hydronium ion concentration and the pH when $50.0 \mathrm{mL}$ of $0.40 \mathrm{M} \mathrm{NH}_{3}$ is mixed with $50.0 \mathrm{mL}$ of 0.40 M HCl.
In Chapter $3,$ the law of conservation of mass was introduced as an important principle in chemistry. The discovery of nuclear reactions forced scientists to modify this law. Explain why, and give an example illustrating that mass is not conserved in a nuclear reaction.
