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- 1. Multiple ChoiceAmmonium chloride is used as a flavouring agent in some types of liquorice. What is the IUPAC formula for ammonium chloride?NH4Cl(NH4)2ClNH4Cl2(NH4)2Cl2
- 2. Multiple ChoiceArsenic pentafluoride is an extremely dangerous toxin, mainly poisoning liver cells. It has an apparent smell that is similar to vinyl chloride gas. What is the IUPAC name for arsenic pentafluoride?As5FAsF5AsF3As3F
- 3. Multiple ChoiceNaHSO4 is used primarily to lower pH. For technical-grade applications, it is used in metal finishing, cleaning products, and to lower the pH of water for effective chlorination, including swimming pools. What is the IUPAC name for NaHSO4?sodium hydrosulfatesodium hydrogen sulfitesodium hydrogen sulfatesodium hydrosulfite
- 4. Multiple Choice
Each of the rulers pictured has a different level of precision. What place value is the length indicated by the dotted line on each of the rulers read?
Ruler A= hundredths
Ruler B= tenths
Ruler A= thousandths
Ruler B=hundredths
Ruler A=hundredths
Ruler B=thousandths
Ruler A=tenths
Ruler B=hundredths
- 5. Multiple ChoiceWhat is the density of sample of material that has a mass of 4.93g and a volume (calculated via water displacement) of 12.025mL?0.409g/mL0.410g/mL0.4100g/mL0.4099g/mL
- 6. Multiple ChoiceThe metric prefix centi- is used to make convenient measurements that are smaller than the base unit. What is the factor that corresponds to the prefix centi-?1x10-61x10-11x10-31x10-2
- 7. Multiple ChoiceA student masses out 4.94g of a compound on one balance and then masses out 4.8g of a compound on a second balance. Using significant figures, what is the total mass of the compound measured out by the student.9.749.79.74010.
- 8. Multiple Choice0.08841 km is the equivalent distance to which of the following measurements?88.41 mm8.841x109 Gm8841 cm8.841x10-2cm
- 9. Multiple Choice
1 mole of ammonium acetate contains ____ moles of oxygen atoms.
4.00 mol
3.00 mol
2.00 mol
1.00 mol
- 10. Multiple ChoiceWhich of the following polyatomic ions is incorrectly paired with its name?H2PO41-
dihydrogen
phosphateH2SO41-
dihydrogen
sulfateHCO31-
hydrogen
carbonateH2PO31-
dihydrogen
phosphite - 11. Multiple Choice
Magnesium nitrate is used in fertilizer preparation. What is the molar mass of magnesium nitrate?
86.3g/mol
148.3g/mol
110.6g/mol
38.0g/mol
- 12. Multiple ChoiceHow many grams of sodium are in 3.3 mol of sodium?105g110g75.9g76g
- 13. Multiple ChoiceWhen adding hydrogen ions to a polyatomic ion, what happens to the charge of the original polyatomic ion?It becomes more positive.It becomes more negative.It depends on the ion.¯\_(ツ)_/¯
- 14. Multiple ChoiceWhich of the following general prefix/suffix combos indicates a polyatomic ion with the fewest oxygen?per-/-iteper-/-atehypo-/-itehypo-/-ate
- 15. Multiple Choice
How many grams are in 2.4x1024 molecules of carbon dioxide?
((2.4x1024)(44.01))/(6.02x1023)
((2.4x1024)(6.02x1023))/(44.01)
(2.4x1024)(44.01)(6.02x1023)
none of these
- 16. Multiple Choice
How many formula units of sodium chloride are in 117g of sodium chloride?
(117)/(6.02x1023)
(117)(6.02x1023)
(117)(58.44)(6.02x1023)
none of these
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