A steel tank with a volume of 9.583 L contains N2 gas under a pressure of 4.972 atm at 31.8 °C. Calculate the number of moles of N2 in the tank.

a.

0.002 mol

c.

0.525 mol

b.

0.018 mol

d.

1.90 mol

Which compound in the following pair would you expect to have the greater dipole moment μ? Why? Select the single best answer. NaF or HF Hydrogen fluoride has the larger dipole moment because sodium has a greater atomic radius than hydrogen.

When an atom in a reactant loses electrons, what happens to its oxidation number? Its oxidation number decreases. Its oxidation number doubles. Its oxidation number increases. Its oxidation number increases by one.

If you eat 3.00 moles of sugar, how many molecules did you consume? 3.00 2.00 x 10^23 molecules 5.00 x 10^ - 24 molecules 1.81 x 10^24 molecules

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1. Sara tells Michael she is 160 centimeters tall, while Michael says he is 60 inches tall. If there are 2.54 centimeters in an inch, who is taller

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What two ions are central to the arrhenius definitions of acids and bases?