What fraction of a sample of na-24

Assignment Help Chemistry
Reference no: EM132252049

Radioactive isotope Na-24 has a half life of 15 hours. What fraction of a sample of Na-24 will remain after 45 hours?

Reference no: EM132252049

Questions Cloud

Calculate the concentration : Calculate the concentration, % m/m, of a solution containing 26.0 g solute and 726.0 g water.
Calculate the specific heat : The mixture equilibrated at 25oC. Calculate the specific heat (s) of the metal.
What is the value of the rate constant : The decomposition reaction X ? products was studied as a function of time. Data are given in the table below.
Calculate the percentage kcl in the original sample : Consider the following balanced chemical equation, KCl(aq) + AgNO3(aq) ? AgCl(s) + KNO3(aq)
What fraction of a sample of na-24 : Radioactive isotope Na-24 has a half life of 15 hours. What fraction of a sample of Na-24 will remain after 45 hours?
Find the concentration in molarity and mass : Original NaCl Solution: (this is solved) Calculate how many grams of NaCl you require to make 4 oz 1 M NaCl solution and write the answer here: 6.96 g/Mol.
Buffer solution comprised of hf and f : Consider a buffer solution comprised of HF and F-. The Ka of HF is 6.3x10-4. If the pH of the buffer solution is 3.90 and [HF] = 0.0121M,
Calculate the amount of co2 from the amount : Please check if my number in run 1 is ok or I have to redo the run. and help me solve these questions.
Calculate the mass in grams of the gold : Calculate the mass in grams of the gold that was added to the water. Explain how you got your answer.

Reviews

Write a Review

Chemistry Questions & Answers

  Explain a weak electrolyte or a strong electrolyte

Consider the conductance of the following 0.025 M Solutions.How do I use data to classify each solute as either a nonelectrolyte (NE), a weak electrolyte (WE), or a strong electrolyte (SE)

  Explain the mixture was cooled in a salt-ice bath

A reaction was conducted in benzene as the solvent. Because the reaction was very exothermic, the mixture was cooled in a salt-ice bath. This was a bad choice. Why?

  Explain period of discharge of a lead-acid battery

During a period of discharge of a lead-acid battery, 405 g of Pb from the anode is converted into PbSO4 (s).

  Explain the oxygen atom on acetone molecule form sp2

According to Valence Bond Theory the oxygen atom in methanol molecule forms sp3 hybrid orbitals prior to bonding with the carbon and hydrogen atoms. Does the oxygen atom on acetone molecule form sp2 hybridization preceding

  What is the theoretical yield of cl2

Problem- Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese (IV) oxide

  What is the maximum number of moles of agcl

What is the maximum number of moles of AgCl that could be obtained from this mixture?

  Theoretical yield of compound

How to find the theoretical yield of any compound or element? Please tell me step by step.

  Explain the decontaminated waste stream

The maximal level of X allowed in the decontaminated waste stream (underflow of stage 5) is 1.20 ppm.

  What is the appropriate conclusion

Residuals appear to be positively autocorrelated b) Residuals appear to be negatively autocorrelated

  A gas sample in an open manometer system has a pressure of

a gas sample in an open manometer system has a pressure of 530 mmhg . the mercury column has a height of 545 mm on the

  How much of the original concentration will be consumed

For a certain first order reaction, it takes 32.6 minutes to consume 32.6% of the original concentration of reactant. how much of the original concentration will be consumed after 65.2 minutes

  State what is the product of toluene conj base of alcohol

What is the product of toluene+ conj base of alcohol? ( a ring with a O- ) also, where does equilibrium lies?

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