Problem based on half life of an isotope
The half life of an isotope is 3.15 x 104 years. How many hours will it take for a 4.92 g sample to decay until 1.81 g of the isotope remains? Remember - that there are actually 365.25 days in a year.
Now Priced at $10 (50% Discount)
Recommended (96%)
Rated (4.8/5)
A 0.0125-g sample of a gas with an empirical formula of CHF2 is placed in a 165-mL flask. It has a pressure of 13.7 mm Hg at 22.5 ?C. What is the molecular formula of the compound?
The end position of the arm must be deteermined accurately in order to weld the components at the precise position. a) In selecting the material for the arm of such robots, what factors must be considered?
On July 1, 2008, B Corporation issued $20 million of 8.21%, twenty-year bonds. Interest on the bonds is paid semiannually on December 31 and June 30 of each year, and the bonds were issued when the market interest rate was 7.98%.
On the first day of the current fiscal year $2,000,000 of 10 year 7% bonds with interest payable annually, were sold for $2,125,000. Present enteries to record the following transactions for the current fiscal year.
Assume that you are a chemical engineer attempting to optimize the process CO(g) + 2H2(g) (right arrow) CH3OH(g), what conditions would you use? Explain purpose of each factor by applying Le Chailiens Principle.
Coleman, a married taxpayer, is going to establish a manufacturing business. He anticipates that the business will be profitable immediately due to a patent he holds.
The company faces two choices that Mr. Smith must evaluate with your assistance: continue with the current smaller sized stores, or select larger stores for the firm's strategic growth or construction plan.
One metric tonne(t) equals 1000kg. What is the amount of sulfur dioxide produced by a power plant that burns 7.5 million metric tonnes(t) of coal over a year? Assume that the coal is 2.4% sulfur by mass.
1960542
Questions Asked
3,689
Active Tutors
1412709
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Explain the risks of not reporting the results of your forensic assessment findings accurately. Provide specific examples.
Read "The Effect of Tart Cherry Juice Compared to a Sports Drink and Cycling Exercise Performance, Substrate Metabolism, and Recovery" from University Library
Identify and analyze one resource that provides information regarding services for dealing with and treating substance use and abuse in youth or adolescence.
Discuss how culture may influence one's perceptions. Provide an example of how culture may impact the interaction between a patient/client
Write an essay describing your achievement of a goal and your friends or family member's achievement of a goal using motivational theory
Pets can have a therapeutic effect on people; they seem to have the power to calm the anxious and cheer the depressed. Give three reasons
Review Chapter 12 and consider how your culture has impacted your worldview and personality. Pay particular attention to the section on characteristics of Cult