Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A pesticide decomposes following first-order kinetics.
(a) If the half-life of the pesticide is 12 years, what is the rate constant k for the decomposition reaction?
(b) What fraction of the pesticide will be left after 36 years?
(c) What fraction of the pesticide will be left after 100 years?
(d) How many years will it take for 99.9% of the pesticide to decompose?
Would the following procedural errors cause an increase, a decrease, or no change in your calculated molecular weight? Indicate clearly the reasoning in each case.
The final temperature of the calorimeter is 150°F. What is the mass of titanium used? The specific heat capacity of water is 4.184 J g-1 °C-1.
A 3.00 L container at 25 C contains 0.464 atm of CO2. When graphite is added to the container, some CO2 is converted to CO and at equilibrium the total pressure is 0.746 atm.
A basketball with a volume of 3.50 Liters is left in a car when the temperature is 298 K. What will the volume of the ball be as the car heats up to 305 K during the day?
Which of these substances would have the strongest cohesive forces in combination with the greatest molecular mobility?
Calculate the ΔH(in KJ/mol and also the ΔH in Kj/g NHΔ4NO3) for the solution process.Assume the specific heat of the solution is the same as of taht of pure wate which is ΔH=4.18j/g.K)
Exactly 75 mL of a 0.3132M solution of Na2SO3 were treated with 150 mL of 0.4025 M HClO4 and boiled to remove SO2 the formed. What was the mass of SO2 evolved and what was the concentration of unreacted NA2SO3 and HCLO4.
Alum precipitates to form aluminum hydroxide floc in water at near neutral pH. what is the balanced chemical equation for this process
How many liters of softened water, containing a sodium concentration of 5.8×10^-2% sodium by mass, have to be consumed to exceed the FDA recommendation (less than 2.4 g sodium per day)? (Assume a water density of 1.0 g/mL.)
question 1 which of the following best describes the forces that generate geothermal power?heat energy beneath the
The energy for one state of the H atom is -2.18 *10 ^18 J. What frequency (Hz) of light would need to be absorbed to reach a state with an energy of -8.72 X 10^ -20 J. Express answer in scientific notation.
If you started with the nicked molecule, added ethidium bromide, ligated the molecule to be a closed circle, and then removed the ethidium bromide, would the molecule have positive supercoils, negative supercoils, or no supercoils? Explain.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd