How many moles of benzene, C6H6, are there in a 7.8 g sample of benzene? a. 608 mol b. 7.8 mol c. 0.100 mol d. 1.00 mol e. 78 mol
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How many moles of benzene, C6H6, are there in a 7.8 g sample of benzene? a....
A) How many of the following are found in 1500 g of benzene (C6H6)? kg C6H6 mol C6H6 lb-mole C6H6 mole (g-mole) C mol H g C g H molecules of C6H6 B) A mixture of methanol and methyl acetate contains 45.0 wt% methanol. Determine the g-moles of methanol in 300.0 kg of the mixture. The flow rate of methyl acetate in the mixture is to be 100.0 lb-mole/h. What is the mixture flowrate in lbm/h?
A sample of benzene, C6H6, contains 2.5 moles. How many moles of carbon are present in this sample?
how many molecules in a sample of benzene, C6H6, which contains a total of 5.29 mol of carbon.
The nonvolatile, nonelectrolyte TNT (trinitrotoluene), C7H5N3O6 (227.1 g/mol), is soluble in benzene C6H6. How many grams of TNT are needed to generate an osmotic pressure of 8.44 atm when dissolved in 189 ml of a benzene solution at 298 K. grams TNT
A solution of benzene (C6H6, 78.12 g/mol) and toluene (C7H8, 92.15 g/mol) has a concentration of 14.8 % C7H8 by mass. If the vapor pressures of pure benzene is 0.0987 atm and pure toluene is 0.0289 atm, what is the vapor pressure of the solution? A. 0.0392 atm B. 0.0189 atm C. 0.0899 atm D. 0.109 atm E. 0.0408 atm
A student made a solution by dissolving 0.144g of an unknown in 10.00g of benzene, C6H6, and found the vapor pressure solution to be 94.35mm Hg. The vapor pressure of pure benzene is 95.00mm Hg at the temperature of the experiment. (Show your work and use the factor labor method) a. what is the mole fraction of benzene in the solution? b. how many moles of benzene were in the solution? c. how many moles of unknown were in the...
Write and balance the chemical equation for the combustion of benzene (C6H6). Also calculate how many grams of carbon dioxide will form from the reaction of 155 g of C6H6.
How much energy is needed to vaporize 230.0 g of liquid benzene (C6H6) at its boiling point? The molar heat of vaporization of benzene is 33.83 kJ/mol.
The freezing point of benzene C6H6 is 5.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in benzene is testosterone . How many grams of testosterone, C19H28O2 (288.4 g/mol), must be dissolved in 243.0 grams of benzene to reduce the freezing point by 0.500°C ? Refer to the table for the necessary boiling or freezing point constant. Solvent Formula Kb (°C/m) Kf (°C/m) Water H2O 0.512 1.86 Ethanol CH3CH2OH 1.22 1.99 Chloroform CHCl3 3.67 Benzene C6H6 2.53 5.12 Diethyl ether...
How many moles of O2 are required to burn completely 63.5 g of C6H6, according to the following equation? 2C6H6 + 15O2 ---> 12CO2 + 6H2O