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All the following are postulates of the kinetic molecular theory of gases except A) the collisions between molecules are elastic. B) the gas molecules move randomly in straight lines in all directions. C) smaller gas molecules will travel at the same speed as larger gas molecules. D) volume of the molecules are neglible compared to the volume of the container. E) none of the above.
Calculate the volume of ammonia required to bring the pH to 3.00 and to 8.00. Kb (NH3) = 1.8 x 10^-5.
Ethane, C2H6, has a molar heat of vaporization of 15 kJ/mole. How many kilojoules or energy are required to vaporize 5 g of ethane?
The first-order decomposition of S2O6(g) to form SO3(g), has a half-life of 1.262 x 10-3 s at 45oC. How long will it take for 60% of a 0.34 M sample to decompose at 45oC
A second-order reaction of the type A+2Bâ†'P was carried out in a solution that was initially 0.050 mol dmâˆ'3 in A and 0.030 mol dmâˆ'3 in B. After 1.0 h the concentration of A had fallen to 0.010 mol dmâ
If 15 g of KClO3 are added to 200 g of water at 25 degrees celsius with stirring, how much of the KClO3 will dissolve?
Calculate the mass (in mg) of KCN needed to make 500. mL of aqueous KCN solution with a pH of 10.00.
Estimates show that the total energy output of the sun is 5X10^26 J/s. What is the corresponding loss in Kg/s of the sun in scientific notation
How would the following experimental errors change the calculation of the number of mg of ascorbic acid in fresh orange juice, student neglected to filter the juice
How many grams of methanol (CH3OH) must burned to raise the temperature of 1.00 kg H2O from 5.0 Celsius to 90.0 Celsius
Write the balanced chemical equation for the following reaction. Phases are optional. Solid iron(II) hydroxide decomposes to form solid iron(II) oxide and liquid water.
A 100.-L flask contains a mixture of methane (CH4) and argon gases at 25 degrees Celsius. The mass of argon present is 228 g and the mole fraction of methane in the mixture is 0.650. Calculate the total kinetic energy of the gaseous mixture.
When a 5.60 g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee-cup calorimeter, the temperature rises from 22.3 degrees Celsius to 41.6 degrees Celcius.
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