Atom

8568 - 1 - Page 1 Name: ____________________________________________ 1) Which quantity of neon may be represented by the symbol Ne? A) 1 gram 2) B) 4 liters C) 6 x 1023 atoms D) 2 moles

Which sample of O2 contains a total of 3.01 x 1023 molecules at STP? A) 16.0 grams B) 32.0 grams B) 6.02 x 1023 C) 2.00 moles D) 1.00 mole D) 1.20 x 1024 What is the total number of atoms contained in 2.00 moles of nickel? A) 118 C) 58.9 C) 1 liter of neon D) 1 gram of neon

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What quantity is represented by the symbol Ne? A) 1 mole of neon B) 1 atomic mass unit of neon

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How many moles of hydrogen atoms are present in one mole of C2H4(OH)2? A) 6 B) 2 C) 8 D) 4 What is the mass of 3.0 x 1023 atoms of neon? A) 10. g B) 1.0 g C) 20. g D) 0.50 g A sample of nitrogen containing 1.5 x 1023 molecules has the same number of molecules as a sample containing A) 1.0 mole of H2 B) 0.25 mole of O2 B) 2 C) 0.50 mole of Ne D) 2.0 moles of He What is the total number of moles of oxygen atoms in 1 mole of ozone? (Molecular mass = 48) A) 1 C) 3 D) 4 What is the total number of molecules in 1.0 mole of Cl2(g)? A) 35 B) 12 x 1024 B) O2 C) 70 D) 6.0 x 1023 D) NH3

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One mole of which substance contains a total of 6.02 x 1023 atoms? A) Li C) CO2 What is the total number of hydrogen atoms in one mole of CH3OH? A) 24 x 1023 B) 36 x 1023 B) 8 C) 18 x 1023 C) 10 D) 6.0 x 1023 D) 5

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What is the total number of moles of atoms represented by one mole of (CH3)2NH? A) 9 How many moles of hydrogen atoms are there in one mole of C6H12O6 molecules? A) 12 B) 24 C) 12(6.0 x 1023) C) 1.0 mole of H2 C) 1.5 x 1023 C) 6.0 x 1023 C) 6.02 x 1023 C) 13 D) 24(6.0 x 1023) D) 0.25 mole of O2 D) 3.0 x 1023 D) 4.5 x 1023 D) 3.01 x 1023 D) 8

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A sample of nitrogen containing 3.0 x 1023 molecules has the same number of molecules as a sample containing A) 0.50 mole of Ne B) 2.0 moles of He What is the total number of molecules of hydrogen in 0.25 mole