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Homework for Retake Test for 1st Section of Mole Concept and Compounds
Answer all the question either in complete sentences and/or showing all work (for math questions). All work on separate sheet.
1. Determine the bonding between Cs and Br and C and N using delta EN and showing all work.
2. Write the Lewis Do Structure (LDS)for NO31-, CS2,SCl6, CH4, PBr5, BeH2.
3. What do the subscripts mean for ionic and molecular cpds.
4. Explain the Objective #1 for this section (see objective handout).
5. Calculate the percent composition of S2Cl3?
6. Write the correct chemical formula or chemical name for the following: N7F2 , Tetrasulfur monophosphide, P6I4, and octachloride heptafluoride.
7. How many grams of nitrogen gas in 4.25 moles of nitrogen gas?
8. How many atoms of C in 3.25moles of C2H6?
9. How many liter of NH3 gas at STP if I have 34.5 moles of this gas?
10. How many moles in 4.56E24 molecules of C1O2?