Give the characteristic of a first-order reaction having only one reactant. The

Question

Give the characteristic of a first-order reaction having only one reactant. The rate of the reaction is not proportional to the concentration of the reactant. The rate of the reaction is proportional to the square of the concentration of the reactant. The rate of the reaction is proportional to the square toot of the concentration of the reactant. The rate of the reaction is proportional to the natural logarithm of the concentration of the reactant. The rate of the reaction is directly proportional to the concentration of the reactant. Calculate the number of moles of sulfuric acid that is contained in 0.250 mL of 0.500 M sulfuric acid solution. 0.600 moles 0.125 moles 8.00 moles 0.500 moles 2.00 moles Define solubility. the amount of a substance that will dissolve in a given amount of solute a solid that does not dissolve in a gas a liquid that does not dissolve in another liquid the amount of a substance that will dissolve in a given amount of solvent a solid mixed with another solid Determine the partial pressure of oxygen necessary to form an aqueous solution that is 4.7 times 10^-4 M O_2 at 25 degree C. The Henry's law constant for oxygen in water at 25 degree C is 1.3 times 10^-3 M/atm. 1.6 atm 0.36 atm 2.8 atm 0.60 atm 0.61 atm What is the overall order of the following reaction, given the rate law? NO_(g) + O_3(g) NO_2(g) + O_2(g) Rate = k[NO][O_3] 1st order 2nd order 3rd order 1 1/2 order 0th order Choose the solvent below that would show the greatest freezing point lowering when used to make a 0.20 m nonelectrolyte solution. carbon tetrachloride, K_f = 29.9 degree C/m diethyl ether, K_f = 1.79 degree C/m chloroform, K_f = 4.70 degree C/m benzene, K_f = 5.12 degree C/m ethanol, K_f = 1.99 degree C/m A rate is equal to 0.0200 M/s. If [A] = 0.100 M and rate = k[A]^1, what is the new rate if the concentration of [A] is increased to 0.200 M? 0.0200 M/s 0.0400 M/s 0.0600 M/s 0.0800 M/s 0.100 M/s

Explanation / Answer

18.

In a first order reaction,

the rate of reaction is proportionl to the concentration of the reactant.

19

we know

number of moles = molarity * volume of the solution in litre

                         = 0.5M * 0.250 L

                         = 0.125 moles

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