Multiple Choice
How many argon (Ar) atoms are present in 1.5 × 10^2 g of argon?
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2. Atoms & Elements
Mole Concept
Back2. Atoms & Elements
Mole Concept
- Multiple ChoiceA copper sample has a mass of 63.5 g. How many moles of copper are present in the sample? (Atomic mass of Cu = 63.5 g/mol)33views
- Multiple ChoiceA solution has a concentration of 0.025 M HCl. How many moles of H+ are present per liter in this solution? (Use the decimal form of your answer.)19views
- Multiple ChoiceWhich statement best explains the purpose of using a mole in the measurement of matter?22views
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- Multiple ChoiceAvogadro's law states that at a given temperature and pressure:25views
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- Multiple ChoiceHow many carbon atoms are present in one mole of 12C?31views
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- Multiple ChoiceA cup of water contains 13.9 moles of water. How many molecules of water are in the cup?33views