Desecribe gallium-68 decays by positron emission

Assignment Help Chemistry
Reference no: EM13552264

Gallium-68 decays by positron emission, with a half-life of 68.3 min. How much 68Ga remains from a 10.0 mg sample after 683 min?

Reference no: EM13552264

Questions Cloud

A power cycle operates between a lakes surface water : A power cycle operates between a lake's surface water at a temperature of 300l and water at a depth whose temperature is 285 K. at steady state the cycle develops a power output of 10KW, while rejecting energy by heat transfer to the lower tempera..
What percentage of the rock is gold by volume : A prospector finds a solid rock composed of granite (\rho = 2560 {\rm kg/m^{3}}) and gold, What percentage of the rock is gold by volume
Evaluate the heat transfer and work for each process : 1.5 pounds of water within a piston-cylinder assembly execute a Carnot power cycle. During isothermal expansion, the water is heated at 500 F from saturated liquid to saturated vapor. the vapor then expands adiabatically to a temperature of 100 F ..
At least two specific ethical considerations : Identify three stakeholders and at least two specific ethical considerations
Desecribe gallium-68 decays by positron emission : Gallium-68 decays by positron emission, with a half-life of 68.3 min. How much 68Ga remains from a 10.0 mg sample after 683 min
Estimate what is the average density of the duck : A duck is floating on a lake with 27% of its volume beneath the water. What is the average density of the duck
Find the position of the electron at any time t : The plates of a parallel plate capacitor are 'd' mts apart. At t=0 an electron is released at the bottom plate with a velocity v' normal to the plates . The potential of the top plate with respect to the bottom is -Vm Sin(ωt). Find the position of th..
Calculate the angular frequency of the driven system : A 1.80-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 2.30sin(2?t), Find the angular frequency of the driven system
Explain how many grams of solid naf could be used : Consider a reservoir with a diameter of 450 m and a depth of 10 m. (a) how many liters of 0.10 M NaF should be added to produce 1.6 ppm F? (b) how many grams of solid NaF could be used instead of the solution used in part (a)

Reviews

Write a Review

Chemistry Questions & Answers

  Explain reaction occurring in an electrochemical cell

Use the standard half-cell potentials listed below to calculate the standard cell potential for the following reaction occurring in an electrochemical cell at 25°C.

  Define a carbonate or a chloride

The formula Co(NH3)5CO3Cl could represent a carbonate or a chloride: write the two formulas, draw the two structures and name them below.

  Depict lewis structures of the four molecules

Draw Lewis structures of the four molecules and/or ions with the formulas given below and figure out which two of these are isoelectronic with each another.

  Define molecular equation and complete ionic equation

molecular equation, complete ionic equation, and net ionic equation for: Sodium carbonate + sulfuric acid Cadmium chloride + sodium hydroxide Hydrochloric acid + sodium hydroxide Ammonium chloride + sodium hydroxide Sodium acetate + sodium hydroxi..

  What is the concentration of hocl

what is the concentration of (HOCl), at equilibrium if 0.0230 mol of H2 and 0.0230 mol of ClO2 are initially placed in a 5 L vessel? What is the concentration of ClO2 in the above problem at equilibrium?

  Define what is the percent-yield of h2 in the reaction

What is the percent-yield of H2 in the reaction below when an equimolar mixture of CH4 and CO2 with an initial total pressure of 20.0 atm reaches equilibrium at 1200. K, at which Kp = 3.548 x 106

  Explain contents of tese two syringes

A sytringe contains 589 mL of CO at 325K and 1.2 atm pressure. A second sytringe contains 473mL of n2 at 298K and 2.6atm. What is the final pressure if the contents of tese two syringes are injected into a 1.00L container at STP

  Explain balanced molecular and ionic and net ionic equations

Enter balanced molecular, ionic, and net ionic equations for the following pairs of reactants. If all ions cancel, indicate that no reaction (N.R.) takes place.

  What is the ph

If a buffer solution is 0.260M in a weak base (Kb=5.6x10^-5) and 0.550M in its conjugate acid, what is the pH.

  What gas comprises the bubbles

In a beaker of boiling water, there are many gas bubbles forming throughtout the liquid. What gas comprises the bubbles.

  How much heat would be released by its complete combustion

If a bottle of nail polish remover contains 172 of acetone,how much heat would be released by its complete combustion? The density of acetone is 0.788 .

  Explain the aqueous neutralization of hydrochloric acid

balanced chemical equation for the aqueous neutralization of hydrochloric acid with sodium hydroxide forming sodium chloride and water

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