Enter your answer in the provided box. Strontium–90 is one of the products of the fission of uranium–235. This strontium isotope is radioactive, with a half-life of 28.1 yr. Calculate how long (in yr) it will take for 4.00 g of the isotope to be reduced to 0.100 g by decay. %3D yr

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Q: Balance the equation and calculate the E∘cell of the given reaction Rb(s) + Hg2+(aq) ------> Rb+…

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A:

Q: Rank (in an ascending order) the relative N–O bond distances and the O–N–O bond angles for: NO2+,…

A: NO2+ , NO2 , NO2-

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A:

Q: The following mechanism has been proposed for the gas phase reaction of nitrogen monoxide with…

A: The given steps of the mechanism is: Step1 Fast: NO+Br2⇌NOBr2Step2 Slow: NOBr2+NO→2NOBr

Q: 11. Which of the following is the phase diagram of water-nicotine system? TIK Vpour Composton of one…

A: The phase diagram of water-nicotine system is

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A: [Cr2+] = 0.00190 M [Au3+] = 0.824 M ->Answer may differ slightly because values of standard…

Q: F3NH4* Ct. lat Hz-C-CH2-C00. a* F3-C-CH2-CO0. H;NH Ch. a* Clo,

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Q: Equations: Conc/Abs1 = Conc2/Absz MW salicylic acid: 138.12 g/mol Determine the concentration of…

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Q: 4. Calculate the pH of a solution that is 0.0532 M in acetic acid and 0.0245 M in sodium acetate.

A: Given-> Concentration of acetic acid = 0.0532 M Concentration of sodium acetate = 0.0245 M

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A: The solubility of gases in water is inversely proportional to temperature because if the temperature…

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Q: Calculate the mole fraction of oxygen in the air. If air contains 18.0 g oxygen gas at 285 K at 1.20…

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A: Lucas reagent :- A mixture of concentrated HCl and anhydrous ZnCl2 is known as Lucas reagent

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Q: Task 2) Ibuprofen has an octanol-water partition coefficient KOW of 3.97. If you dissolve 100 mmol…

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Q: Which of the following is a reversible reaction according to the way it is written? Ag^ + (aq)+Cl^ -…

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Q: Consider a solution consisting of 1.75 mol water and 0.97 mol ethanol. Express your answers in three…

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Q: A pharmacist was called for the assay of a newly delivered sodium chloride. Prior to the assay, he…

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Q: Using this balanced equation C3H8 + 5 O2   → 3 CO2 + 4H2O             a. How much carbon dioxide…

A:

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Q: (1R,2R)-2-methylcyclohexanol same as (1R,2R)-2-methylcyclohexan-1-ol

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A: A given solution absorbs green light very strongly.

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Q: 214 the half-life of 3Bi is 19.7 minutes, calculate the mass of radionuclide Bi-214 if the activity…

A: Here we have to determine mass of Bi-214 nuclide and specific activity i

Q: How to prepare 0.10M of sodium thiosulphate

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Q: CO2 (g) + 6 H2O (l) → C6H12O6 (s) + 6 O2 (g) ∆?_? {?_6 ?_12 ?_6 (?)}= −1274.5 ??/??? ∆?_? {?_2 (?)}=…

A: ΔHrxn = Σ ΔHproducts   - Σ ΔHreactants

Q: Write the balanced nuclear equation for each of the processes described below. 1. beta emission of…

A:

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Q: Be sure to answer all parts. A freshly isolated sample of 90y was found to have an activity of 9.7 x…

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Q: Which of the following indicators will be the most appropriate to be used for the titration of 15.0…

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Q: 18 mL 0.10 M HClO (Ka= 3.5x10-8) was titrated with 0.06 M NaOH. Calculate the pH after the addition…

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Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.