UNIT 6 HOMEQUI Name: Please show your work when appropriate on this piece of pap

Question

UNIT 6 HOMEQUI Name: Please show your work when appropriate on this piece of paper. No worho credit 1. State if each one of the following is soluble or not. Compounds Soluble/insoluble KNO3 Cas(PO)2 Li S NaH BaSO AgSO Pbl2 (NH42COs Ba(OH)2 BaCO3 Fe(OH 2. Write molecular, complete ionic, and net ionic equations for the double displacement reaction between ammonium sulfide and iron(III) nitrate. 3. How many milliliters of a 2.50-M H.SO, solution are required to neutralize 35.0 mL of a 0.75-M NaOH solution? The equation of the reaction is H SO,(aq)+2NaOHNa SO4(aq) + 127

Explanation / Answer

1) Solubility Rules in aqueous solution :

*salts of Group I elements and NH4+ are soluble (Li+, Na+, K+, Cs+, Rb+).

* salts of Cl-, Br-,I- are generally soluble except halide salts of Ag+, Pb2+, and (Hg2)2+.

* NO3- salts are soluble.

*Most sulfate salts are soluble except few like BaSO4, PbSO4, Ag2SO4 and SrSO4 .

* . Hydroxide salts of transition metals and Al3+ are insoluble.

* Most sulfides salt of transition metals are highly insoluble.

* chromate, carbonate, phosphate, fluoride salt are frequently insoluble.

So, following above rules,

KNO3 - soluble

Ca3(PO4) 2 - insoluble

Li2S - soluble

NaH - soluble

BaSO4 - insoluble

Ag2SO4 - insoluble.

PbI2 - insoluble

(NH4)2CO3 - soluble

Ba(OH)2 - insoluble

BaCO3 - insoluble

Fe(OH)3 - insoluble

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