Relative Mass: Atomic, Molecular, and Formula (HSC SSCE Chemistry): Quizzes
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10 questions from this quiz
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Practise the questions
10 questions from this quiz
Why do chemists use relative masses instead of actual masses for atoms?
Why do chemists use relative masses instead of actual masses for atoms?
Atoms are too small to measure practically
What is the relative atomic mass of carbon-12 set at?
What is the relative atomic mass of carbon-12 set at?
Exactly 12
Chlorine has 75% Cl-35 and 25% Cl-37. What is its relative atomic mass?
Chlorine has 75% Cl-35 and 25% Cl-37. What is its relative atomic mass?
35.5
What does relative atomic mass represent?
What does relative atomic mass represent?
Average mass vs carbon-12 (set at 12)
What type of number is relative atomic mass?
What type of number is relative atomic mass?
Pure number with no units
How is relative molecular mass calculated?
How is relative molecular mass calculated?
Sum of all atomic masses in formula
What is the relative molecular mass of water, ?
What is the relative molecular mass of water, ?
18.02
What is the relative molecular mass of nitrogen dioxide, ?
What is the relative molecular mass of nitrogen dioxide, ?
46.01
When should formula mass be used instead of molecular mass?
When should formula mass be used instead of molecular mass?
For ionic compounds with crystal lattices
What is the relative formula mass of sodium chloride, ?
What is the relative formula mass of sodium chloride, ?
58.44