ell 10. An Ostwald viscometer is calibrated using water at 20.0 C [n = 1.0015 cP and p = 0.998 g mL-], it takes 15.0 s for the water fluid to fall from upper to the lower level of the viscometer. An unknown liquid is then placed in the viscometer and it takes 37.0 s for the fluid to fall between the two levels [p = 0.765 g mL-]. Which of the following simple liquids is the unknown, A) Bromoform (CHBr3, n = 1.89 cp) B) Acetone (C3H6O, n = 0.31 cp) C) n-Butanol (C4H10O, n = 2.4 cp) D) iso-Propanol (C3H8O, n = 2.6 cp) n-Octane (C8H18, n = 0.54 cp) E)

10. An Ostwald viscometer is calibrated using water at 20.0C[=1.0015cP and = 0.998gmL1 ], it takes 15.0s for the water fluid to fall from upper to the lower level of the viscometer. An unknown liquid is then placed in the viscometer and it takes 37.0s for the fluid to fall between the two levels [=0.765gmL1]. Which of the following simple liquids is the unknown, A) Bromoform (CHBr3,=1.89cp) B) Acetone (C3H6O,=0.31cp) C) n-Butanol (C4H10O,=2.4cp) D) iso-Propanol (C3H8O,=2.6cp) E) n-Octane (C8H18,=0.54cp)