Question

Q1: Employ solubility guidelines to predict insoluble products, if any. (Difficulty = 4)

a) MnnCl2(?) + Na2S(aq)

b) HNO3(aq) + CuSO4(?)

c) Hg(NO3)2(aq) + Na3PO4(aq)

d) BaCl2(aq) +KOH(aq)

Q2: What is the final concentration if 75.0 mL of a 3.50 M glucose solution is diluted to a volume of 400.0 mL?

Q3: What is the final concentration if 75.0 mL of a 3.50 M glucose solution is with a volume of 400.0 mL?

Q4: Nomenclature

1. name two very common nonmetal cations that have acid properties

2. name the top four inert gases

3. name

a. FeO, Fe₂O₃ and Fe₃O₄

b. name LiCl

c. name CuSO₄^. 5 H₂O

d. PO3- 4(aq)

e. CO2- 3(aq)

4. provide chemical formula for

a. aqueous hydrogen peroxide

b. sodium hypochlorite

c. potassium perchlorate

d. disodium phosphate ion

e. hydrogen sulfate ion or bisulfate ion

Answer 1

Solution :-

Q1: Employ solubility guidelines to predict insoluble products, if any. (Difficulty = 4)

Complete reactions are as follows and the precipitate is denoted by the solid phase (s)

a) MnCl2(aq) + Na2S(aq) ------ > MnS (s) + 2 NaCl(aq) = forms precipitate

b) HNO3(aq) + CuSO4(aq) ------- > H2SO4(aq) + Cu(NO3)2(aq) = no precipitate

c) 3Hg(NO3)2(aq) + 2Na3PO4(aq) --- > Hg3(PO4)2(s) + 6NaNO3(aq) = forms precipitate

d) BaCl2(aq) +KOH(aq) --------- > Ba(OH)2(aq) + 2KCl(aq) = no precipitate.

Q2: What is the final concentration if 75.0 mL of a 3.50 M glucose solution is diluted to a volume of 400.0 mL?

Solution :- M1 = 3.50 M , V1 = 75.0 ml

M2 = ?   V2 = 400.0 ml

M1V1 = M2M2

M2 = M1V1/V2

     = 3.50 M * 75.0 ml / 400.0 ml

     = 0.65625 M

So the concentration of the diluted solution is 0.65625 M

Q3: What is the final concentration if 75.0 mL of a 3.50 M glucose solution is with a volume of 400.0 mL?

Solution :- M1 = 3.50 M , V1 = 75.0 ml

M2 = ?   V2 = 400.0 ml

M1V1 = M2M2

M2 = M1V1/V2

     = 3.50 M * 75.0 ml / 400.0 ml

     = 0.65625 M

So the concentration of the diluted solution is 0.65625 M

Q4: Nomenclature

1. name two very common nonmetal cations that have acid properties

Solution :- ammonium ion ,

2. name the top four inert gases

Solution :- names of the inert gases are , Helium , Neon , Argon , Krypton

3. name

a. FeO= Iron (ll) oxide

Fe₂O₃ = Iron (lll) oxide

Fe₃O₄ = Iron (ll,lll) oxide

b. name LiCl = Lithium chloride

c. name CuSO₄^. 5 H₂O = Copper sulfate pentahydrate

d. PO3- 4(aq) = phosphate ion

e. CO2- 3(aq) = carbonate ion

4. provide chemical formula for

a. aqueous hydrogen peroxide = H2O2(aq)

b. sodium hypochlorite = NaOCl

c. potassium perchlorate = KClO4

d. disodium phosphate ion = Na2HPO4

e. hydrogen sulfate ion or bisulfate ion = HSO4^-(aq)