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Mole Ratios
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Non-Science Questions
100
In equation 1, what is the mole ratio of CO to CO2?
2/1 or 2:1
100
What is the gram formula mass of H2?
2 g
100
What is the atomic number AND the atomic mass of the isotope He-4?
Atomic Number = 2 and Atomic Mass = 4
100
Which value is calculated using both the mass and the relative abundance of each of the naturally occurring isotopes of this element? (1) atomic mass (2) atomic number (3) molar volume (4) half-life
atomic mass
100
What is the name of the coach of the NY Knicks?
Mike Woodson
200
In equation 1, what is the mole ratio of CO2 to O2?
2/1 or 2:1
200
What is the mass of 2 moles of NaCl?
116 g
200
What is the number of neutrons in an atom of Si-29?
15 neutrons
200
The nucleus of an atom of K-42 contains (1) 20 protons and 19 neutrons (2) 23 protons and 19 neutrons (3) 19 protons and 23 neutrons (4) 19 protons and 42 neutrons
(3) 19 protons and 23 neutrons
200
What is the name of Justin Beiber's most recent girlfriend?
Selena Gomez
300
In equation 1, if you have 10 moles of CO, how many moles of O2 will it react with?
5 moles
300
How many moles of salt are represented by the following: 3NaCl
3 moles
300
Si-28 has an atomic mass of 27.98 and 90% abundance. Si-29 has an atomic mass of 28.98 and 10% abundance. What is the average atomic mass of these two isotopes of Si? Include units of amu!!!!
28.08 amu
300
The region that is the most probable location of an electron in an atom is (1) the nucleus (2) an orbital (3) the excited state (4) an ion
Orbital
300
What is the name of the biggest planet in our solar system?
Jupiter
400
In equation 1, if you have 7 moles of O2, how many moles of CO will it react with?
14 moles
400
You have 32 grams of water. How many moles do you have?
2 moles
400
He-4 has an atomic mass of 4.03 and 40% abundance. He-5 has an atomic mass of 5.10 and 60% abundance. What is the average atomic mass of these two isotopes of He? Include units of amu!!!!
4.677 amu
400
What was concluded about the structure of the atom as the result of the gold foil experiment? (1) a positively charged nucleus surrounded by positively charged particles (2) a positively charged nucleus surrounded by mostly empty space (3) a negatively charged nucleus is surrounded by positively charged particles (4) a negatively charged nucleus is surrounded by mostly empty space
(2) a positively charged nucleus surrounded by mostly empty space
400
What is the name of the galaxy that Earth is in?
The Milky Way Galaxy
500
In equation 1, if you make 22 moles of CO2, how many moles of O2 would you need to use to make it?
11 moles of O2
500
You have 72 grams of water (H2O). How many moles of water do you have?
4 moles
500
42. A compound has a molar mass of 90. grams per mole and the empirical formula CH2O. What is the molecular formula of this compound? (1) CH2O (2) C2H4O2 (3) C3H6O3 (4) C4H8O4
C3H6O3
500
What is the total charge of the nucleus of a carbon atom? (1) 0 (2) +12 (3) -6 (4) +6
+6 (because according to the periodic table, carbon has 6 protons which each have a positive charge)
500
How many lines are in a cinquain poem?
5 line!