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The molar mass of a volatile substance was determined by the Dumas-bulb method. The unknown vapor had a mass oThe molar mass of a volatile substance was determined by the Dumas-bulb method. The unknown vapor had a mass of 0.852 g, the volume of the bulb was 356 cm3, pressure 755 torr, and the temperature 88°C. Calculate the molar mass of the unknown vapor.
what will be the theoretical yield of bromobenzene in given reaction as C6H6 + Br2 → C6H5Br + HBr also find out percentage yield when actual yield of bromobenzene was found 56.7 g?
Atomic absorption spectrometry was used with the method of standard additions to determine the concentration of cadmium in a sample of an industrial waste stream
Calculate the change in molar Gibbs energy, ?Gm, of liquid mercury initially at 1.00 bar pressure if a pressure of 1000. bar is applied to it. The process occurs at the constant temperature of 25 ºC
The hydrogenation of Oleic acid to a steric acid. we used 10% pd/c, ammonium formate, mentanol, dichloromethane, 95% ethanol, and 1M sulfuric acid to get steric acid.
solid sodium metal reacts with water, giving a solution of sodium hydroxide and releasing hydrogen gas
have 2.50 ml of 4.00 M sugar solution. You add 217.3 ml of water to this solution. determine the concentration of the sugar solution after the water has been added.
Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all atoms in the correct structure. ClO4 -
an atomic element has 20 electrons write the ground state electron configuration of the element
What is the pH of a solution created by mixing 183 mL of a 0.94 NaHSO3 solution with 110 mL of a 1.12 M Na2SO3 solution
How much heat is produced by the complete combustion of 253g of CH4? Ch4(g) +2 O2(g) ----> CO2(g) + 2H2O (g)
If i use 0.212 g of benzaldehyde, 1.6ml of a solution containing 58 mg of acetone in ethanol. what is my mols of benzaldehyde and what is the mols of acetone. how do i determine the moles for acetone if its ethanol.
They are tethered together and are at the same temperature and pressure. Which balloon has the greater number of gas particles? Which balloon has the greater mass? Which balloon has the greater density?
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