User Account

All Pages

Required for it to decay to 10 of its initial activity

Assignment Help Chemistry
Reference no: EM131996249

Iron-59 is a radioisotope that is used to evaluate bone marrow function.59Fe decays with a half-life of 44.5 days. How much time is required for it to decay to 10.7% of its initial activity?

Reference no: EM131996249

Questions Cloud

What is the cost of equity : Matrix Pool Company just paid its annual dividend of $0.95 a share. The stock has a beta of 1.3. The return on the U.S. Treasury bill is 2.5 percent.
Describe how you might perform this separation : One of the problems of recycling such materials is separating them. Suppose you have been hired to set up a process for separating large quantities of waste
What should be the price of bonds in the market : Matrix Corp Class B bonds have a 10-year maturity, $1,000 par value, and a 6% coupon paid semiannually. These bonds are currently traded at their par value.
What is the volume at stp of a sample of co2 : What is the volume at STP of a sample of CO2 that has a volume of 75.0 mL at 30.0 degree Celsius and 680 mmHg?
Required for it to decay to 10 of its initial activity : How much time is required for it to decay to 10.7% of its initial activity?
Determining the importance of information : NUR 225: Professional Nursing Issues Assignment - Concepts: Collaboration; Interpersonal Violence. Determining the importance of information
Commercial method for producing acetic acid : which reaction would you choose as a commercial method for producing acetic acid (CH3CO2H) at standard conditions?
Determine the selling price for the product : Determine the selling price for the product, assuming that the company desires to earn a gross margin of $20.40 per unit.
Heat evolved by the combustion of glucose : A bomb-type calorimeter is used to measure the heat evolved by the combustion of glucose, C6H12O6. Write the balanced reaction.

Reviews

Write a Review

Chemistry Questions & Answers

  Explain the copper concentration of the solution

A 1.25g sample of copper ore was dissolved in acid and diluted to 250.0 mL. A 20.00 mL portion was diluted to 50.00 mL. The copper concentration of this solution was 4.62 ppm. What is the weight percentage of copper in the ore

  Compute the theoretical yields for the mononitration

Using the quantities given in the Procedure, calculate the theoretical yields for the mononitration of (a) acetanilide and (b) methyl benzoate. Acetanilide = quantity is .5 g and molar mass 135.17 g/mol. methyl benzoate= quantity is .55g. and mola..

  Explain aliphatic esters have carbonyl stretches that absorb

Aliphatic esters have carbonyl stretches that absorb around 1750 - 1735 cm-1. Unstrained aliphatic ketones have carbonyl stretches that absorb around 1715 cm-1. Explain this observation.

  What is the ph of a buffer solution composed of ammonia

What is the pH of a buffer solution composed of 0.125 moles of ammonia, NH3, and 0.2 moles ammonium chloride, NH4Cl, in enough water to make a 0.075 L solution? Kb for NH3 = 1.8x10^-5.

  An aqueous solution is prepared by diluting 330ml acetone

an aqueous solution is prepared by diluting 3.30ml acetone ch3coh3 d 0.789gml with water to a final volumeof 75.0 ml.

  Compute the ka for the acid

Compute the Ka for the acid if the pH of the resulting solution = 6.36. and determine the pH of the resulting buffer

  Determine the heat of combustion of mg

Determine the heat of combustion of Mg as described by the reaction: Mg(s) + 1/2O2(g) → MgO(s).

  The first-order rate constant for the reaction of methyl

the first-order rate constant for the reaction of methyl chloride ch3cl with water to produce methanol ch3oh and

  Temperature is adjusted to standard temperature

1) What is the new volume of a 200.00 cm3 container at -50.0C when temperature is adjusted to standard temperature? 2) What is the new volume of a 500 cm3 container at standard when the temperature is adjusted to -100.0C?

  Write and balance the molecular equation

Mixing 1.0 M BaCl2 + 1.0 M K2SO4 gives what white participate. Write and balance the molecular equation.

  Explain isolate pure chemical substances

what are the techniques used to isolate pure chemical substances from their natural sources? explain please.

  What is the compounds concentration

Problem- In a chemical analysis, the percent transmittance of a compound is measured to be 25.8% in a cell with a path length of 1.5cm. If the molar absorptivity of that compound is 4170cm, what is the compounds concentration

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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