Multiple Choice
Which of the following SI units is commonly used to measure the amount of substance in chemistry?
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1. Intro to General Chemistry
SI Units
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following is the basic SI unit of mass?
A
ounce
B
gram
C
pound
D
kilogram
Verified step by step guidance1
Understand that the International System of Units (SI) defines standard units for various physical quantities, including mass.
Recall that the SI unit of mass is based on the kilogram, which is the base unit for mass in the SI system.
Recognize that units like ounce and pound are part of the imperial system, not the SI system.
Note that the gram is a derived unit in the SI system, equal to one-thousandth of a kilogram (1 g = 10\^{-3} kg), so it is not the base unit.
Conclude that the kilogram is the basic SI unit of mass, as it is the fundamental unit from which other mass units in the SI system are derived.
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