ChemistryWiki | RecentChanges | Preferences
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 Answer the following questions showing all work.
a) How many grams in 23.7 liters of chlorine gas (Cl2) @ STP?
b) How many molecules in 24.5 grams of water?
c) How many f.u. do I have if I have 14.5grams of aluminum chloride?
d) How many liters of N2 in 3.4E24 molecules of this gas.
(The element N is not found alone in nature but instead as in two's so it is actually a molecule)
e. How many grams of Sodium carbonate do you need to add to get 452mL of a 0.728M solution?
Part III Answer the following question showing all work
a. What is the percent composition of K2(SO3)1 ?
Part IV For the following Ionic compound, please write: a) symbol and charge of each ion, b) correct chemical formula and c) Lewis Dot Structure.
a. Calcium phosphide
b. Aluminum fluoride
Answer:
Part I : Can't show without giving answer
Part II :
a. 75.1g Cl2 @STP
b. 8.19E23 molecules H2O
c. 6.51E22 f.u. Al1Cl3
d. 130L (or 1.3E2L) N2 @STP
e. 34.9g of solid (did not give chemical formula because you need to determine it for problem)
Part III :
a. K, 49.4%, S, 20.2%, O, 30.4%
b. Na2(Cr2O7)1
c. C8H24N4 and C2H6N1