Chemistry

If 3.21 mol of a gas occupies 56.2L at 44C and a pressure of 793 torr, what volume will 5.29 mol of this gas occupy under the same conditions?

(A) 61.7 L
(B) 30.9 L
(C) 14.7 L
(D) 92.6 L
(E) 478 L

  1. 👍 9
  2. 👎 1
  3. 👁 5,427
  1. Convert degrees C to degrees K.
    K = C + 273
    Convert torrs to atm.
    atm = torrs / 760

    Substitute in PV = nRT and solve for V

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    2. 👎 2
  2. 456

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    2. 👎 7
  3. 478

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    2. 👎 3
  4. Must think of this as a ratio. The conditions are all the same. If 3.21mol occupies 56.2L then 5.29mol occupies X liters.

    3.21mol/56.2L=5.29mol/X

    Cross multiply and divide.

    Ans= 92.6L

    1. 👍 5
    2. 👎 2
  5. 93.8 is the correct answer

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    2. 👎 0

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