Explain how many days would be required for a sample

Assignment Help Chemistry
Reference no: EM13302354

The half life for the radioactive decay (first order process) of 32P is 14.2 days. How many days would be required for a sample of radiopharmaceutical containing 32P to decrease to 20% of its initial activity

Reference no: EM13302354

Questions Cloud

Explain the density of magnesium oxide : The density of magnesium oxide is 3.58 g /cm3. Given that the radius of the O2- ion is about 140 pm in most oxides, calculate the radius of Mg2+, in pm. Your solution should include a sketch one face of the unit cell of MgO to show how the edge le..
Calculate the irr of this joint-venture : Would it be possible to calculate the IRR of this joint-venture? What are the possible problems, if any, with its calculation in this specific problem?
Ideas for new products to scour pots and pans : A firm is looking for ideas for new products to scour pots and pans. Which is the most appropriate research method for gathering these new product ideas?
Which strategy benefits from stock price increase : 1) Currently, a stock price is $51. Over each of the next 2 6-month periods it is expected to go up by 12% or down by 10%. The risk-free rate is 3% per annum with continuous compounding. What is the value of a 1-year European put option with a..
Explain how many days would be required for a sample : The half life for the radioactive decay (first order process) of 32P is 14.2 days. How many days would be required for a sample of radiopharmaceutical containing 32P to decrease to 20% of its initial activity
Write the mass balance equation for a plug flow : Write the mass balance equation for a plug flow with a second order decaying substance,C. Solve for the steady state concentration of C as a function of the second order rate constant k, longitudinal distance x, mean velocity u, and the concentrat..
Estimates for the third and fourth quarters of 2013 : Construct a less-than-cumulative frequency distribution of the data represented by the graph and represents the grouped frequency distribution of the time spent on the Internet by a randomly-selected sample of Internet subscribers during their most..
Consumer versus business markets : Which statement is true about consumer versus business markets?
Compute the potential difference between points : The work done by an external force to move a 6.50 uC charge from point a to point b is 0.0240 J. The charge started from rest, Find the potential difference, Vba between points

Reviews

Write a Review

Chemistry Questions & Answers

  At what temperature will it burst

A flask that can withstand an internal pressure of 2525 torr, but no more, is filed with a gas at 21.0°C and 758 torr and heated. At what temperature will it burst?

  What is the minimum amount of 5.2 m h2so4 necessary

What is the minimum amount of 5.2 M H2SO4 necessary to produce 23.0 g of H2? according to the following reaction. 2Al(s)+3H2SO4(aq)-->Al2(SO4)3 (aq)+3H2(g)

  Calculate the concentration, in moles per liter

Suppose 50 mL of 0.250 M CoCl2 solution is added to 25.0 mL of 0.350 M NiCl2 solution. Calculate the concentration, in moles per liter, of each of the ions present after mixing.

  State the distribution coefficient between ether and water

You have 75.0 g of solute Q dissolved in 300-mL of water. The distribution coefficient between ether and water for solute Q is 8. a) How many extractions using 60-mL of ether each would you need to carry out to extract a total of 70.7 g (total) so..

  Explain camphor to lower its freezing point

must be dissolved in 15.0g of camphor to lower its freezing point by 2 degrees celsius? constant k of camphor = 37.7 (*C x kg)/mol

  Explain hydrogenation of cyclohexene

Using condensed structural formulas, write a balanced chemical equation for each of the following reactions. hydrogenation of cyclohexene

  How to calculate the energy in kj released

Is it believed that two carbon-12 nuclei (mass 12.0000 amu) can react in the core of a supergiant star to form sodium-23 (mass 22.989767 amu) and hydrogen-1 (mass 1.007825). Calculate the energy in kJ released from this reaction for each mole of h..

  Compute the transformation rate the austenite-to-pearlite

Calculate the transformation rate for the austenite-to-pearlite transformation at 650 °C and at 600 °C. Show the relationship(s) you used to arrive at your answers.

  Depict the speed distribution function for helium

Plot the speed distribution function for a.) Helium, O2,and UF6, at the same temperature, and b.) CO2at 300 K and 1000 K.

  Define the value of nd20 for a mixture can be approximatedas

The value of nD20 for a mixture can be approximatedas the weighted average of the refractive indices ofthe individual components. For a heptane/alpha-pinene mixture nD20 (mixture)=VheptanenD20 (heptane) + VpinenenD20 (pinene)

  State water to produce a saturated solution

The solution is filtered, and a 60.00mL sample titrated with HCl requires 11.13mL of 9.78×10?2 M HCl to reach the end point. Calculate Ksp for Ca(OH)2

  Compute the ph of the buffer after the addition

Calculate the pH of the buffer after the addition of 1.5 g of HCl (36.5 g/mol). (Ka of HNO2 = 7.1x10^-4.)

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