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A certain substance, intially present at 0.500 M, decomposes by second-order kinetics with a rate constant of 4.00 x 10-1 L/mol min. Calculate the time (in minutes) required for the system to reach a concentration of 0.370 M.
The densities for aluminum and iron are 2.7 g/cm 3 and 7.86 g/cm3, respectively. What is the ratio of the mass of an object made of aluminum to that of the same object made of iron?
What is the molar enthalpy of solid sodium hydroxide reacts with an aqueous solution of hydrochloric acid, forming water amd an aqueous solution of sodium chloride?
How many milliliters of a 533 mL solution of 1.3 M K3PO4 must be used to make 316 mL of a solution that has 0.79 moles of K+?
Why an anti-addition is formed once the acid protonates an oxygen in a ring opening reaction with epoxides and why a trans diol is the only thing that can be formed
The men's world record for swimming 1500.0 m in a long course pool (as of 2007) is 14 min 34.56 s. At this rate, how many seconds would it take to swim 0.800 miles.
Predict what product favored reaction will occur when potassium metal is dropped into liquid water. Write a balanced chemical equation for the process and explain breifly how you made your predicition.
What pressure will the evolved carbon dioxide produce when 184.5g of calcium carbonate decomposes in a 20.00L container at 22.4 deg celsius?
Again, are all of the (non-zero) formal charges consistent with the relative EN's of the atoms? Are the structures reasonable?
An application calls for N2(g) with a density of 1.80g/L at 32 degrees. What must be the pressure (atm) of the N2(g)?
What two properties of ATP make it ideally useful for a form of energy storage in cells? Describe why the hydrolysis of ATP is highly exergonic (give at least two reasons).
Complete the following reaction: Pb-210 decays by ? (beta) emission to form what new necleus? Write the complete nuclear equation.
If 200 mL of a .20 M HCl solution is consumed in the above reaction, how many grams of each product would be produced?
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