1) What volume would 27 grams of COz occupy at 19°C, 534 mm Hg pressure? 2)...
27. The vapor pressure of pure water at 15 °C is 12.8 mm Hg. What is the equilibrium vapor pressure of water above a mixture of 72.0 g ethanol (CH;CH20H, molar mass 46.07 g/mol) and 22.0 g water? a. 2.84 mm Hg b. 5.61 mm Hg c. 7.19 mm Hg d. 10.0 mm Hg e. 12.8 mm Hg
The vapor pressure of water is 23.76 mm Hg at 25°C. How many grams of sucrose, C12H22011, a nonvolatile, nonelectrolyte (MW = 342.3 g/mol), must be added to 191.5 grams of water to reduce the vapor pressure to 23.29 mm Hg? water = H,0 = 18.02 g/mol. g sucrose The common laboratory solvent benzene is often used to purify substances dissolved in it. The vapor pressure of benzene, C6H6, is 73.03 mm Hg at 25°C. In a laboratory experiment, students...
What volume (in L) would a 18.0 g sample of C2H6 gas occupy at a pressure of 1292 mm Hg and a temperature of 35.0 °C?
Specify each of the following pressure values in atmosphere pressure units. a. 555 mm Hg c. 675 torr S-X 11 b. 32.0 psi d. 75.2 mm Hg At constant temperature, a sample of 6.0 L of O2 at 3.0 atm pressure is compressed until the volume decreases to 2.5 L. What is the new pressure, in atmospheres? 7-17 7-19 A sample of ammonia (NH,), a colorless gent odor, occupies a volume of 3.00 L at a pressure of 655 mm...
The vapor pressure of water (H2O) is 23.8 mm Hg at 25 °C. What is the vapor pressure of a solution consisting of 203 g of water and 0.213 mol of a nonvolatile nonelectrolyte? VP(solution) = mm Hg
8. i) How many moles of Neon gas will occupy a container with a volume of 2.5 L at a temperature of 31.5°C and a pressure of 912 torr? ii) What is the density of the gas? 9. A tank of compressed mixed gases contains 0.40 moles of Hz (hydrogen), 1.3 moles of NO2 (nitrogen dioxide), and 0.80 moles of Ar (argon). The total pressure in the tank is 2.8 atm. What is the partial pressure of the Hz gas?...
What is the vapor pressure (mm Hg) of water at 25 c above a solution prepared by dissolving 25g of urea, CO(NH2) 2. in 75g of water? The vapor pressure of pure water at 25 °C is 23.8 mm Hg.
A sample of gas occupies 135 ml at 22.5⠁C and 165 mm Hg pressure. What volume will the gas occupy if the pressure is increased to 1.00 atm and the temperature is increased to 100.0⠁C?
3) 50.0 mL of dry fluorine at 20.0° C and 795 mm Hg will occupy what volume over water at the same temperature and pressure? ( Pwater=17.5 mm Hg) (51.1ml) 4) What is the root mean squared velocity of hydrogen gas (H2) at 28.4°C? (1932m/s)
3.A sample of a pure gas at 20 °C and 670 mm Hg occupies a volume of 562 cm3. How many moles of gas are in this sample? 4.An unknown compound contains only carbon and hydrogen. What is the volume (in L) of 1 mol of this gas at 100 °C and 760 mm Hg? 5.The same 1 mol sample of gas from the previous problem has a vapor density of 2.550 g/L. If the empirical formula of the compound...