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If the absolute temperature of a gas is doubled, what happens to the root-mean-square speed of the molecules?
*nothing
*the new rms speed is 4 times the original rms speed
*the new rms speed is 2 times the original rms speed
*the new rms speed is 1.414 times the original rms speed
*the new rms speed is 1/2 the original rms speed
A chemist dissolves 128 mg of pure hydrobromic acid in enough water to make up of 110 mL solution. Calculate the pH of the solution.
how many grams of Lithopone will be produced in the reaction of 315 mL of 0.275 M ZnSO4 and 285 mL of 0.315 M BaS.
How many moles of ammonia are produced when 20 moles of hydrogen react with 40 moles of nitrogen
Write an overall balanced equation and a net ionic equation for the complete neutralization of aqueous H2SO4 with aqueous NaOH. Be sure to include phase designations such as (s) and (aq).
An unknown, rectangular substance measures 3.6 cm high, 4.21 cm long, and 1.17 cm wide. If the mass is 21.3g, what is this substance's density?
Calculate the molarity of Ba(OH)2 solution if a55.00 mL portion of this solution
Determine the phase composition and temperature when equilibrium is reestablished?
the rate constant for the second order -reaction is NOBr(g)------>NO(g)+1/2Br2(g) is 48 L/mol*min at a certian temperture. How long will it take for 90.0% of a .0200M solution of NOBr to decompose
explain what would happen to the cell during the process of osmosis and why?
If a minimum energy of 2.00x10^5 J/mol is needed for this process, what is the minimum energy needed from each photon? B. Calculate the wavelength of light necessary to provide photons of this energy
Calculate the pressure and the temperature of the compressed gas. In a diesel engine the compression ratios are typically much higher; redo the same calculation for the compression ratio of 20:1.
Determine how many milligrams of H 2 O are present in sample If the freezing point of a 100.0g sample of 2-methyl-2-propanol =24.59C?
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