The half-life of 82 35Br is 1.471 days. This isotope decays by the emission of a beta particle. a Gaseous HBr is made with Br-82. When the bromine isotope decays, the HBr produces H2 and the bromine decay product. Write a balanced equation for the decay of Br-82. Now, write a balanced equation for the decomposition of H82Br. b If a pure sample of 0.0150 mol of HBr made entirely with Br-82 is placed in an evacuated 1.00-L flask, how much HBr remains after 10.0 h? If the temperature is 22°C, what is the pressure in the flask?
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The half-life of 82 35Br is 1.471 days. This isotope decays by the emission of a...
1.) What is the missing particle?
2.) Carbon-14 decays by beta emission and has a half-life of
5,730 years
a.) Write the balanced equation for this reaction.
b.) What percentage of a
sample remains after 3,310 years?
3.) Bismuth-214 is an a-emitter with a half-life of 19.7 min.
How long does it take for 75.0% of
to decay?
The isotope lodine-131 is a radioactive isotope used in industrial and medical applications. It is prepared just before use because it decays rapidly through beta emission. Use the data in the table below to answer the following questions (a) Write the reaction equation. (Note m indicates an excited state of the isotope, which is generally denoted with an asterisks after the symbol, such as X*) (b) What is the rate constant for the decay? Show how you obtained this rate...
Please show your steps clearly.
. The radioactive isotope Uranium-234 decays to Thoriu-230 with a half-life of T. Thorium 230 itself is also radioactive and decays to Radium-226 with a half-life of γ and γ > τ Although Radium-226 is also radioactive its half-life is much longer than T and γ and here we assume that it is relative stable. Consider the scenario when we start with a certain amount of pure Uranium-234, because of this chain of decays, we...
Phosphorus-32 (P-32) is used in nuclear medicine as therapeutic
agent in the treatment of several diseases. P-32 has a half life of
14.3 days and decays directly to its ground state by emitting a
beta-minus particle. The decay table for P-32 is given. There are
no excited energy states or other radiation emitted during this
decay; therefore, P-32 is referred to as a "pure beta emitter.
A P-32 sample is prepared in the manufacturing site with
an initial activity of...
After watching the lectures I am still having a hard time understanding these equations. 1. The half-life of tritium is 12.3 years. How long does it take for a 48.0g sample to be reduced to 2.0g? Answer using equation(s). (I know itll be around 50 years but unsure about the equation) 2. Write balanced equations for: bismuth-214 undergoes beta decay, plutonium-242 emits alpha radiation, selenium-81 undergoes beta decay, uranium-235 undergoes alpha decay, 11C emits a positron, O-15 undergoes electron capture...
Cesium-137, used in cancer treatment, has a half- life of 30 years. are here 1974 used in cancer treatment, has a half- Part A Enter the balanced nuclear equation for the beta decay (e) of cesium-137 Express your answer as a nuclear equation. Α. ΑΣφ on? Subrnit Previous Answers Request Answer Part B How many milligrams of a 24 mg sample of cesium-137 remain after 120 years? Express the mass to two significant figures and include the appropriate units. Value...
a) In order to study hydrogen halide decomposition, a researcher fills an evacuated 1.79 L flask with 0.452 mol of HI gas and allows the reaction to proceed at 428°C: 2HI (g) ⇋ H2(g) + I2(g) At equilibrium, the concentration of HI = 0.055 M. Calculate Kc. Enter to 4 decimal places. HINT: Look at sample problem 17.6 in the 8th ed Silberberg book. Write a Kc expression. Find the initial concentration. Fill in the ICE chart. Put the E (equilibrium) values...
just give me the answer i dont need an explanation
When the nuclide radium-226 undergoes alpha decay: The name of the product nuclide is The symbol for the product nuclide is Submit Answer Retry Entire Group 6 more group attempts remaining Fill in the nuclide symbol for the missing particle in the following nuclear equation He + BOTH Write a balanced nuclear equation for the following: The nuclide bismuth-214 undergoes alpha emission. (Use the lowest possible coefficients.) When the nuclide...
1. In order to study hydrogen halide decomposition, a researcher fills an evacuated 1.79 L flask with 0.222 mol of HI gas and allows the reaction to proceed at 436°C: 2HI (g) ⇋ H2(g) + I2(g) At equilibrium, the concentration of HI = 0.09 M. Calculate Kc. Enter to 4 decimal places. HINT: Look at sample problem 17.6 in the 8th ed Silberberg book. Write a Kc expression. Find the initial concentration. Fill in the ICE chart. Put the E (equilibrium) values...