Chemistry

Chemistry, 23.07.2019 19:20, braidyn1018

What is the pressure of the enclosed gas in (i)? assume that the gray liquid is mercury?

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Physics, 22.07.2019 17:40, tayymac1998

The difference in heights of the liquid in the two sides of the manometer is 43.4 cm when the atmospheric pressure is 755 mm hg. given that the density of mercury is 13.6 g/ml, the pressure of the enclosed gas is atm.

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Geography, 04.10.2019 20:00, dontcareanyonemo

Answer the following questions about mercury, a poisonous metal which is liquid at room temperature and pressure (a) its vapor pressure at 24 °c is 0.0016 24 °c, how many milligrams of mercury will be present in an 8 ft by 10 ft room which has 8 ft ceilings? (b) use the information above and the fact that the enthalpy of vaporization of mercury is about to find the normal boiling point of mercury. note: this boiling point may be different than what is 9 mmhg. if the air in a room is saturated with mercury vapor at 60 kj/mol reported on the web and other places.

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Chemistry, 06.10.2019 04:00, divine134

Amanometer consists of a u-shaped tube containing a liquid. one side is connected to the apparatus and the other is open to the atmosphere. the pressure p inside the apparatus is given p = pex + rhogh, where pex pressure, rho is the mass density of the liquid in the tube, g = 9.806 m s−2 is the external is the acceleration of free fall, and h is the difference in heights of the liquid in the two sides of the tube. (the quantity rhogh is the hydrostatic pressure exerted by a column of liquid.) (i) suppose the liquid in a manometer is mercury, the external pressure is 760 torr, and the open side is 10.0 cm higher than the side connected to the apparatus. what is the pressure in the apparatus? the mass density of mercury at 25 °c is 13.55 g cm−3 . (ii) in an attempt to determine an accurate value of the gas constant, r, a student heated a container of volume 20.000 dm3 filled with 0.251 32 g of helium gas to 500 °c and measured the pressure as 206.402 cm in a manometer filled with water at 25 °c. calculate the value of r from these data. the mass density of water at 25 °c is 0.997 07 g cm−3

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