Question

Please help ASAP!

1. Solid iron(II) carbonate and solid iron(II) sulfide are in equilibrium with a solution containing 1.21×10-2 M sodium carbonate. Calculate the concentration of sulfide ion present in this solution. [sulfide] = ________ M

2. Solid manganese(II) sulfide and solid copper(II) sulfide are in equilibrium with a solution containing 1.31×10-2 M manganese(II) nitrate. Calculate the concentration of copper(II) ion present in this solution. [copper(II)] = _______ M

3. Consider these compounds: A. Al(OH)3 B. Cr(OH)3 C. Ag2CrO4 D. BaF2 Complete the following statements by entering the letter(s) corresponding to the correct compound(s). (If more than one compound fits the description, include all the relevant compounds by writing your answer as a string of characters without punctuation, e.g, ABC.) Without doing any calculations it is possible to determine that calcium fluoride is more soluble than _________, and calcium fluoride is less soluble than ________ . It is not possible to determine whether calcium fluoride is more or less soluble than ____________ by simply comparing Ksp values.

4. Consider these compounds: A. Fe2S3 B. MnS C. Zn3(PO4)2 D. BaCrO4 Complete the following statements by entering the letter(s) corresponding to the correct compound(s). (If more than one compound fits the description, include all the relevant compounds by writing your answer as a string of characters without punctuation, e.g, ABC.) Without doing any calculations it is possible to determine that lead chromate is more soluble than __________, and lead chromate is less soluble than ____________. It is not possible to determine whether lead chromate is more or less soluble than ___________ by simply comparing Ksp values.

Answer 1