How many milligrams of the radioisotope are still active

Assignment Help Chemistry
Reference no: EM13174048

If 110mg of fluorine-18, which has a half-life of 110min, is shipped at 8:00 a.m., how many milligrams of the radioisotope are still active if the sample arrives at the radiology laboratory at 1:30 p.m.?

Reference no: EM13174048

Questions Cloud

What is the wavelength of the automobile : A certain automobile of mass 1635 kg travels on a German autobahn at 157 km·h-1. What is the wavelength of the automobile?
Collected the amount due on the account recievable : Purchased inventory that cost $2,200 on account from Blue Co. under terms 1/10, n/30. The merchandise was delivered FOB shipping point. Freight costs of $110 were paid in cash.
What is the molar mass of the compound : A 35.0 g sample of a nonelectrolyte was dissolved is 680. g of water. The solution's freezing point was -2.80°C. What is the molar mass of the compound?
State equilibrium the pressure of nh3 : At equilibrium the pressure of NH3 (g) is 1.23 atm. NH4Cl (s) ---> NH3 (g) + HCl (g) Find the equilibrium constant Ka for the reaction
How many milligrams of the radioisotope are still active : If 110mg of fluorine-18, which has a half-life of 110min, is shipped at 8:00 a.m., how many milligrams of the radioisotope are still active if the sample arrives at the radiology laboratory at 1:30 p.m.?
Events immediately preceding the turning point necessary : Why were the events immediately preceding the turning point necessary and essential in preparing for the turning point? What subsequent event or events were dependent on the action of the turning point; also, what possible event or events became impo..
Keep money or enter into the market? : You have a 0.35 probaability that you can turn your current $15,000 into $50,000 and a 0.65 probability that fierce competition will drive you to ruin, losing all your money.
What is the bonds selling price : The day the bonds hit the market, the bond price is quoted at 100. What is the bond's selling price and how does the company record this sale in its accounting information system?
Leaders to be truthful with employees : How difficult do you think it is for leaders to be truthful with employees even when the information may not seem to be in their best interest?

Reviews

Write a Review

Chemistry Questions & Answers

  What is the molecular formula of the compound

A particular compound contains, by mass, 41.4g carbon, 3.47g hydrogen, and 55.1g oxygen a 0.100 mol sample of this compound weights 11.60 g.

  How many grams of silver nitrate do you need to weigh out

You are asked to prepare 150 mL of a 0.059 M solution of silver nitrate. How many grams of silver nitrate do you need to weigh out.

  What is the ph of a solution

What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M methylamine, CH3NH2, with 25.00 mL of 0.10 M methylammonium chloride, CH3NH3Cl.

  Explain what is the molecular formula of the compound

What is the molecular formula of the compound 2,3-dimethyl-4-cyclopentyl-5-ethyldecane?

  How many kg of koh will be required

A vat contains 2.29 M sulfuric acid solution. How many kg of KOH will be required to react completely with (neutralize) 882 L of the solution?

  Determine how many grams of carbon dioxide will be present

Determine how many grams of carbon dioxide will be present in the equilibrium mixture? Considering the given equations CO(g) + H 2 O(g) CO 2 (g) + H 2 (g)  if it is given =K c = 23.2

  How many grams of water was produced

A certain amount of glucose, C6H12O6 burned in oxygen, and produced 22 grams of carbon dioxide, CO2. How many grams of water was produced at the same time?

  Explain what is the structure for the indole

What is the structure for the indole that would be obtained from the phenylhydrazone

  How many moles of oxygen are required

undergo combustion according to the unbalanced equation C2H6+O2=CO2+H2O how many moles of oxygen are required?

  State reaction for the dissociation of benzoic acid

Consider the following reaction for the dissociation of benzoic acid (MW=122 g x mol^-1) in water where Ka for benzoic acid is 6.5 x 10^-5. C6H5COOH(aq) + H2O (l) C6H5COO-(aq) + H30+(aq)

  Explain organic products is formed when methylcyclopentanol

What organic product(s) is formed when 1-methylcyclopentanol is heated in the presence of an acid catalyst?

  What is the pressure inside of the syringe

The volume of a syringe is 0.5 mL and the pressure is 3 atm, when the plunger is at the bottom of the syringe. The syringe is then sealed and forced to the 10 mL mark. What is the pressure inside of the syringe?

Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd