CEM 111 Fall 2025 Exam I-A Review

Flashcards created for CEM 111 Fall 2025 Exam I-A covering key concepts, formulas, and chemical nomenclature.

What is the mass conversion of 1404.49 carats to pounds?

The mass is approximately 0.619 pounds.

What is the chemical formula for calcium permanganate?

Ca(MnO4)2.

Which element is in Group 4, Period 5?

Germanium (Ge).

What is the average atomic mass of nickel based on its isotopes?

The average atomic mass is approximately 58.1 amu.

Which student displayed precise and accurate measurements of egg mass?

Student A.

What does 1 pound equal in kilograms?

1 pound equals 0.4536 kg.

Which isotopes have the same number of neutrons as 53 Fe?

49 Co has the same number of neutrons.

What is the formula for iron (III) nitrite?

Fe(NO2)3.

Which of the following is considered an extensive property?

Volume is an extensive property.

What is the formula for trisulfur monoxide?

The formula is S3O.

What is the volume of a gold nugget with a mass of 0.724 ounces and density 19.30 g/mL in deciliters?

The volume is approximately 0.0106 dL.

What is the correct isotope notation for manganese-65?

65 Mn.

What is the density formula?

Density = mass/volume.

What are the dimensions of one foot in meters?

1 foot equals 0.3048 meters.

What is the chemical formula for diboron tetrabromide?

B2Br4.