Jeopardy

Molar Mass

100

Molar mass of N

14.01 g/mol

200

Molar mass of F₄

76.99 g/mol or 76.00 g/mol

300

Molar mass of S₈

256.56 g/mol

400

A chemist weighs out one mole of SiF₄ gas for an experiment. How many grams should the sample contain?

104.08 g/mol

500

How many grams are there in one mole of TESTOSTERONE (C₂₁H₃₀O₂)?

314.45 g/mol

Empirical

100

The empirical formula is always the same as the molecular formula. True or False?

FALSE

200

The empirical formula of C₂H₆.

CH₃

300

The empirical formula of a compound with 36g of Carbon, 6g of Hydrogen, and 48g of Oxygen.

CH₂O

400

A compound’s molecularformula is C₄H₁₀O₂, and its molar mass is 90.12 g/mol. What is the empirical formula of the compound?

C₂H₅O

500

A compound contains 40.0% sulfur and 60.0% oxygen. The empirical formula is...

SO₃

Molecular

100

What is the molecular formula of Water?

H₂O

200

What is the molecular formula of ammonia?

NH₃

300

A compound contains 3 carbon atoms, 8 hydrogen atoms, and no oxygen. What is its molecular formula?

C₃H₈ (Propane)

400

The empirical formula of a compound is CH₂O, and its molar mass is approximately 180 g/mol. What is the molecular formula?

C₆H₁₂O₆ (Glucose)

500

The empirical formula of a compound is NO₂. Its molar mass is 92 g/mol. What is its molecular formula?

N₂O₄ (dinitrogen tetroxide)

Random

100

This classification of matter refers to substances that have a fixed composition and cannot be separated by physical means.

Pure Substance

200

This isotope is used as the standard for measuring atomic masses and is the most abundant form of carbon found in living organisms.

Carbon-12

300

This class of organic compounds contains the –O– functional group and is used as solvents, anesthetics, and in perfumes.

Ethers

400

This type of nucleosynthesis is responsible for forming elements heavier than iron during the explosive death of massive stars.

Supernova 

500

How many grams of calcium phosphate, Ca₃(PO₄)₂, are in 2.15 moles of the compound?

≈ 666.99 grams or ≈ 666.89 grams

Hard Random

100

IUPAC stands for

International Union of Pure and Applied Chemistry

200

Who is the Russian chemist that developed the framework of the Periodic Table?

Dmitri Mendeleev

300

Give any of the two elements that Marie Curie discovered.

Radium and/or Polonium

400

Which quantum number determines the shape of an atomic orbital?

Azimuthal Quantum Number (l)

500

Which acid is known as aqua fortis?

Nitric acid (HNO₃)