2021-2022 Review HW For Two Step Mole Calculation, Molarity And Naming Molecular Compounds

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Part I Please write the appropriate chemical formula or chemical name for the following.

a) Trichlorine octabromide


b) N2Cl5


c) Chemical formula for elemental Bromine


d) Silicon monophosphide


e) Br7S9



<b>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 (Al1Cl3)?





















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 (Na2(CO3)1) do you need to add to get 452mL of a 0.728M solution? <b>






















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


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Edited January 12, 2022 10:48 am (diff)
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