222 -- If $4.55$ grams of one of the copper(II) salts is reacted with $100\ \mathrm{mL}$ of $0.5\ \mathrm{M}$ sodium hydroxide solution and the reaction goes to completion, and $\mathrm{Cu(OH)_2(s)}$ is formed, what is the anion of this salt, and how many grams of $\mathrm{Cu(OH)_2(s)}$ are formed? $$(\mathrm{H = 1,\ C = 12,\ N = 14,\ O = 16,\ Na = 23,\ Cu = 64\ :\ g.mol^{-1}})$$ $$\mathrm{CuA_2(aq) + 2NaOH(aq) \rightarrow Cu(OH)_2(s) + 2NaA(aq)}$$ (1) acetate,\ $2.45$ (2) acetate,\ $2.37$ (3) nitrate,\ $2.45$ (4) nitrate,\ $2.37$ \rule{10cm}{0.4pt} Calculation Space %% Page 23 Chemistry122-DPage 22
\textbf{222 --} If $4.55$ grams of one of the copper(II) salts is reacted with $100\ \mathrm{mL}$ of $0.5\ \mathrm{M}$ sodium hydroxide solution and the reaction goes to completion, and $\mathrm{Cu(OH)_2(s)}$ is formed, what is the anion of this salt, and how many grams of $\mathrm{Cu(OH)_2(s)}$ are formed?
$$(\mathrm{H = 1,\ C = 12,\ N = 14,\ O = 16,\ Na = 23,\ Cu = 64\ :\ g.mol^{-1}})$$
$$\mathrm{CuA_2(aq) + 2NaOH(aq) \rightarrow Cu(OH)_2(s) + 2NaA(aq)}$$
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(1) acetate,\ $2.45$ \qquad (2) acetate,\ $2.37$ \qquad (3) nitrate,\ $2.45$ \qquad (4) nitrate,\ $2.37$
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\textit{Calculation Space}
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