TIGER

Assessment Questions: 22 results
Atoms,_Molecules_and_Ions : ElementSpelling (10 Variations)
Which of the following elements are spelled incorrectly?
Nomenclature / Units / Symbols
Atoms,_Molecules_and_Ions : IonicName (10 Variations)
What is the name of MgS?
Nomenclature / Units / Symbols
Atoms,_Molecules_and_Ions : MolcFormulaTypes (8 Variations)

The structural formula for 2-methyl-butane is given below. What is the molecular formula for 2-methyl-butane?


Nomenclature / Units / Symbols
Atoms,_Molecules_and_Ions : NameFromFormula (16 Variations)
What is the name of N2H4?
Nomenclature / Units / Symbols
Atoms,_Molecules_and_Ions : NameIonFromFormula (16 Variations)
The name of NH4+ is the __________ ion.

Write the name of the ion in the box below. Be careful, spelling counts.


Nomenclature / Units / Symbols
Matter_and_Measurement : CompareFCTemps (10 Variations)
Which is the higher temperature, 350oC or 350oF?
Chemometrics |
Nomenclature / Units / Symbols
Matter_and_Measurement : ConversionFactor (4 Variations)
Which conversion factor is needed to complete the dimensional analysis for the following problem?

It costs $3 per package of 10 pairs of socks. How much does 2 pairs of socks cost?


Chemometrics |
Nomenclature / Units / Symbols
Matter_and_Measurement : ConvertUnits (10 Variations)
Your textbook is approximately 8.75 inches by 10.25 inches. What are these measurements in centimeters?
Chemometrics |
Nomenclature / Units / Symbols
Organic : AlcoholClassification (10 Variations)
Match the following alcohols to the proper classification. (You may not need to use all of the classifications.)
Alcohols |
Nomenclature / Units / Symbols
Stoichiometry : AtomsAndGrams (10 Variations)
How many moles of atoms does a 500. g bar of gold contain?
Stoichiometry |
Nomenclature / Units / Symbols
Organic : AlkaneNomenclature (10 Variations)
What is the correct name for the following compound:
CH3CH2CH2CH3

Alkanes / Cycloalkanes |
Nomenclature / Units / Symbols
Thermochemistry : ConvertEnergyUnits (4 Variations)
The label on a granola bar says it provides 120 Calories. How many kilojoules of energy will this bar provide if it is completely metabolized?
Calorimetry / Thermochemistry |
Nomenclature / Units / Symbols
Solutions : CalcMolarityFromPPT (10 Variations)
You are given a water sample to analyze from a lake contaminated with lead. It takes 24 mL of 0.020 M NaCl to exactly precipitate the Pb2+ ions from 61 mL of the water sample. What is the concentration of Pb2+ ions in the water?
Pb2+(aq) + 2NaCl(aq)PbCl2(s) + 2Na+(aq)

Solutions / Solvents |
Nomenclature / Units / Symbols |
Chemometrics
Solutions : ConvertConcUnits (10 Variations)
The maximum concentration of arsenic in drinking water that is allowed by the EPA is 0.050 mg/L. Express this as a weight percent. (You can assume the density of the water solution is 1.0g/mL.)
Solutions / Solvents |
Nomenclature / Units / Symbols |
Chemometrics
Solutions : GramsToMolalSoln (20 Variations)
How many grams of citric acid need to be added to 750 ml of ethanol to make a 0.50 m solution?

Density (g/ml)

Molecular Weight (g/mol)

Citric acid

1.665

192.14

Ethanol

0.7893

46.07


Solutions / Solvents |
Nomenclature / Units / Symbols |
Chemometrics
Solutions : WtPercentToMolarity (4 Variations)
A common concentration unit used commercially is percent weight per volume (%W/V) which is the number of grams of solute in 100 mL of solution. A bottle of vinegar contains 5 %W/V acetic acid (CH3COOH). What is the molar concentration of acetic acid in the vinegar?
Solutions / Solvents |
Nomenclature / Units / Symbols |
Chemometrics
Special_Topics : AirPollutants (20 Variations)
Which of the following air pollutants can be described as a photochemically active free radical that contributes to acid rain and respiratory irritation?
Atmospheric Chemistry
Special_Topics : GeneralAcidRain (20 Variations)
Which of the following statements about acid rain is the most correct?
Atmospheric Chemistry
Special_Topics : RainFallpH (20 Variations)
The rainfall in central Wisconsin has a pH of 4.8 (National Atmospheric Deposition Program). Take a look at the EPA webpage Effects of Acid Rain: Lakes & Streams. This site has a chart of the pH at which several aquatic species begin to suffer. Determine which of the following species will be most affected by rainfall of this acidity if the lakes and streams in central Wisconsin aren't buffered enough to neutralize some of the acid. (There may be more than one correct answer.)
Atmospheric Chemistry
Special_Topics : GeneralOzone (17 Variations)
Which of the following statements is not an accurate description of the roles ozone plays in the atmosphere?
Atmospheric Chemistry
Special_Topics : OzoneDepletion (8 Variations)
Use the EPA Web site to answer the following question.

Which of the following ozone depleting compounds would be the least harmful substance to the ozone layer?


Atmospheric Chemistry
Special_Topics : SmogFormation (20 Variations)
In which of the following scenarios is the formation of photochemical smog most likely?
Atmospheric Chemistry