Review Homework For 2nd Section Of Mole Concept And Compounds

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Part I Please write the appropriate chemical formula or chemical name for the following. Make sure to give symbols & charges of each ion before writing correct chemical formula.

a) Trichlorine octabromide

b) Fe₂(H₁P₁O₃)₃

c) Ammonium carbonate

d) Silicon monophosphide

e) O₁Br₅

f) Cobalt (III) sulfate

g) Cu₁(C₂O₄)₁

h) Silver nitrate

i) Zn₃(P₁O₄)₂

j) N₂Cl₂

Part II Show the symbol and charge for each ion, correct chemical formula and LDS for the following Ionic Compound

a. Potassium sulfide

b. Aluminum chloride

c. Calcium phosphide

Part III Answer the following questions showing all work.

a) How many liters (@STP) do I have if I mass out 42.7 grams of elemental nitrogen gas (N₂)?

b) How many molecules in 94.5 grams of carbon dioxide?

c) How many atoms of Ne do I have if I have 61.5 L @ STP of this gas?

d) How many f.u. (formula units) of Barium nitrite do I have if I massed out 82.1g of this compound?

Part IV Answer the following question showing all work

a. A compound consists of 17.6% sodium (Na), 39.7% chromium (Cr), and 42.7% oxygen (O). What is the empirical formula (EF)?

b. A molecular compound consists of 54.5% C, 13.6% H and 31.8% N. The molar mass of the compound is 176g/mole. What is the empirical formula (EF) and molecular formula (MF).

Answer: Part I : Can't show without giving answer
Part II : Can't show without giving answer
Part III :
a. 34.2 L N₂ @STP
b. 1.29E24 molecules C₁O₂
c. 1.65E24 atom Ne
d. 2.16E23 f.u. Ba₁(NO₂)₂
Part IV :
a. Na₂(Cr₂O₇)₁
b. C₈H₂₄N₄ and C₂H₆N₁