What is the total pressure exerted by the gas mixture
In a gas mixture, the partial pressures are argon 447 mm Hg, neon 77 mm Hg, and nitrogen 144 mm Hg. What is the total pressure (atm) exerted by the gas mixture?
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at 986°C is 0.63. A rigid cylinder at that temperature contains 1.2 atm of carbon monoxide, 0.20 atm of water vapor, 0.30 atm of carbon dioxide, and 0.27 atm of hydrogen. Is the system at equilibrium?
If the pressure of chloroform vapor in a flask is 154 mm Hg at 25.0°C, and the density of the vapor is 1.25 g/L, what is the molar mass of chloroform?
Organic reactions can be classified as substitutions, eliminations or additions and the reagents can be classified as electrophiles, nucleophiles or radicals.
A solution of 120 mL of 0.150 M KOH is mixed with a solution of 280 mL of 0.250 M NiSO4. How many grams of the precipitate can be formed?
How many grams of formic acid, HCOOH, must be added to 0.300 L of 0.110 M sodium formate, HCOONa, to yield a buffer solution with a pH of 4.10? Assume no volume change. Ka of HCOOH = 5.0 10-4.
A graduated cylinder contains 129 of water. A 12.0 piece of iron (density = 7.86 ) and a 15.0 piece of lead are added. What is the new water level in the cylinder?
When α-D-xylofuranose is treated with excess methyl iodide in the presence of Ag2O, how many equivalents of methyl iodide react with each equivalent of the furanose?
If the reaction rate doubles when the temperature is increased to 35 ^circ {rm C}, what is the activation energy for this reaction in {rm kJ}/{rm mol}?
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