What is the percent yield of water produced
What is the percent yield of water produced when 138 g ethyl alcohol, C2H5OH, is combusted in excess oxygen, if the actual experiment generated 150 g water?
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A graduated cylinder contains 10.0ml of water. If the volume of a single water molecule is 2.99 x 10e-23 cm e3, how many molecules are in the graduated cylinder?
I1 = 589.5 kJ/mol, I2 =1145 kJ/mol, I3= 4900 kJ/mol, I4 = 6500 kJ/mol, and I5 = 8100 kJ/mol. Which one of these five elements is most consistent with this pattern of ionization energies?
A concentration cell consists of two H2/H+ half cells. Half cell A has H2 at 0.87 atm bubbling into 0.10 M HCl. Half cell B has H2 at 0.45 atm bubbling into 2.2 M HCl. What is the voltage of the cell?
If 100. mL of 1.60 M Na2SO4 is added to 200. mL of 2.40 M NaCl, what is the concentration of Na+ ions in the final solution? Assume that the volumes are additive.
What mass of sucrose should be combined with 535g of water to make a solution with an osmotic pressure of 8.60atm at 275K? (Assume the density of the solution to be equal to the density of the solvent.)
A 5.00 mL sample of isopropyl alcohol has a mass of .930 g whe measured at 20 degrees celsius. What is the specific gravity of isopropyl alcohol?
Methanol, a potential replacement for gasoline, can be made from H2 and CO by reactions CO + 2H2 - CH3OH. How will this reaction be affected if the volume of the container is replaced?
A mixture is prepared by mixing a 0.10 L solution of 0.12 M NaCl with a 0.23 solution of 0.18 M MgCl2. What volume of a 0.20 M silver nitrate solution is required to precipitate all the Cl ions in the mixture as AgCl?
Cadmium ion in solution is analyzed by precipitation as the sulfide, a yellow compound used as a pigment in everything from artists' oil paints to glass and rubber. Calculate the molar solubility of cadmium sulfide at 25?C
A gas is collected over water at a certain temperature. The total pressure is 762 torr. The vapor pressure of water at this temperature is 17 torr. what is the partial pressure of gas collected ?
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