During lab, students mixed two solutions of soluble ions in a ceramic well to de
ID: 482278 • Letter: D
Question
During lab, students mixed two solutions of soluble ions in a ceramic well to determine if a precipitate forms.
Based on extrapolation of your lab results, write the dissolution reaction for the ionic solids below. (Use the lowest possible coefficients. Include states-of-matter under the given conditions in your answer.)
(a) Mn(ClO4)2
(b) Li2CO3
The two solutions, when mixed, will have two cations and two anions.
(c) Based on your lab results, enter the cation and anion for which a precipitate will form. (Separate substances in a list with a comma.)
(d) Write the net precipitation reaction that occurs. (Use the lowest possible coefficients. Include states-of-matter under the given conditions in your answer.)
Explanation / Answer
Based on extrapolation of your lab results, write the dissolution reaction for the ionic solids below. (Use the lowest possible coefficients. Include states-of-matter under the given conditions in your answer.)
(a) Mn(ClO4)2
Mn(ClO4)2 (s) + H2O(l) --- > Mn^2+ (aq) + 2ClO4^-1 (aq)
(b) Li2CO3
Li2CO3 (s) + H2O(l) --- > 2Li + (aq) + CO3^-2 (aq)
The two solutions, when mixed, will have two cations and two anions.
two cations : Mn^2+ (aq) and Li + (aq)
two anions: ClO4^-1 (aq) and CO3^-2 (aq)
(c) Based on your lab results, enter the cation and anion for which a precipitate will form. (Separate substances in a list with a comma.)
Mn^2+ (aq) will reacts with CO3^-2 (aq) and form MnCO3
(d) Write the net precipitation reaction that occurs. (Use the lowest possible coefficients. Include states-of-matter under the given conditions in your answer.)
Mn^2+ (aq) + CO3^-2 (aq) --- > MnCO3 (s)
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