How many milligrams of the radioisotope are still active

Assignment Help Chemistry
Reference no: EM13115177

If 95.0 mg of fluorine-18 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: EM13115177

Questions Cloud

Computing costs and break even of rolling creek textile : The Rolling Creek Textile Mill produces denim. The fixed monthly cost is $21,000 and the variable cost per yard of denim is $0.45. The mill sells a yard of denim for $1.30.
Evaluate a projects success : How do you just whether a reintroduction project is successful? Develop simple and then increasingly detailed criteria to evaluate a project's success. Use demographic, environmental, and genetic factors in you evaluaton.
Explain corporations articles of incorporation must include : Generally, a corporations articles of incorporation must include all of the following except the
Analysis of cost volume profit : A company sells calculators at $27 each. It has monthly fixed costs of $3800 each and material costs $3 per unit, labour costs of $1 per unit, and other variable costs $10 per unit.
How many milligrams of the radioisotope are still active : If 95.0 mg of fluorine-18 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.
Specializing completely in the area in which have advantage : Suppose that they are thinking of each specializing completely in the area in which they have a comparative advantage
Find probability that hro officer selected surveyed problems : Use this information to find the probability that an HRO officer selected from the group surveyed had problems with either employee absenteeism or employee turnover.
Calculate the new pressure of the gas : 7.5g of ammonia at STP is heated to a temperature of 25C and simultaneously compressed to a volume of 8.0L. Calculate the new pressure of the gas.
Computing corporation tax : Karen is a single taxpayer and transfers property with a basis of $130,000 and a fair market value of $65,000 to the Southland Corp in exchange for shares of section 1244 stock.

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the standard free energy change for the process

Calculate the standard free energy change for the process N2O5(s)-->N2O5(g) at 25 0C if Vapor pressure of N2O5 at 7.5 degrees C is 100mmHg, and the solid sublimes at a pressure of 1.00 atm at 32.4 0C.

  Determine the pressure in the flask

Calculate the final volume of the gas,and express your answer in milliliters and determine the pressure in the flask if the temperature is raised to 25 degree celcius?

  Questions based on food chemistry

What unusual aspect of water is responsible for it unique characteristics as both a liquid and as a solid? Give examples of how this property of water would affect food systems during processing.

  How long will it take for sulfur to decay

Sulfur-38 has an atomic mass of 38.0 and a half-life of 2.87 hours. How long will it take for 99.99% of a sample of sulfur-38 to decay.

  Why number of neutron increase after the element iron

Up to Iron "Fe", the number of proton and neutron are about equal, after Fe the number of neutron began to rapidly increase, with respect to the number of proton, why?

  Determine the relative amount of electric energy

Compare a refrigerator set at four degree celcius and a freezer set at minus twenty degree celsius, both of which are operating in the room at the temperature of eighteen degree celsius.

  Determine what is the coordination of the cations

Determine what is the coordination of the cations in the case of a normal spinel and what point defects are possible in the spinel structure?

  Determine what mass of pcl3 is formed

Using a phosphorus 12.39 g sample that reacts with 42.54 grams of chlorine to produce only phosphorus Trichloride (PCl3). If it is the only product, determine what mass of PCl3 is formed?

  Calculate how many moles of sodium phosphate required

Calculate how many moles of sodium phosphate are needed to react completely with 4.6 mol of calcium nitrate( Ca(NO 3 ) 2 ) to form sodium nitrate  (NaNO 3 ) and calcium phosphate?

  Analyzing electrostatic potential energy

Two particles with charges q1 and q2 are separated by distance d. Rank these scenarios according to the magnitude of the electrostatic (coulombic) potential energy.

  Determine how much will the ph change

The total molarity of acid and conjugate base = 0.100M. A boy adds 4.20 milliliters of a 0.370 M solution to the beaker. Determine how much will the pH change?

  Determine the empirical formula of compound

Using a sample of a compound containing only oxygen and chlorine reacts with an excess of H2 gas to give 0.206 g water and 0.278 g HCl . ClxOy in presence of H2 (g) → HCl + H2O all the oxygen

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