Iron-59 has a half-life of 45 days. If 168 g of a radioactive iron (59Fe) is received in the lab today, what percentage of the original is left after 270 days?

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A: According to the answering guidelines, I'm posting the solution for the first question. Kindly post…

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A: To determine: Orbital energies in one electron system (e.g. He+ ) depends on which quantum number

Q: Activity 2.2. Using noble gas cores, write the shorthand electron configuration of the following: a.…

A: Using noble gas cores, write the shorthand electron configuration of the following: a. Zn b. Ba c.…

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Q: 36) The major product formed in the following reaction is: NOH H*

A: The above reaction is an example of Beckmann rearrangement; the mechanism of reaction is as follows

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A: There are some rules of significant figures which are listed below --> 1 - All non-zero digits…

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Q: Which of the following hydrocarbons is/are aromatic ? You have to select all correct answers in…

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Q: 2. Which of the following molecules is nonpolar? * Option 1 H-C-OH HIC-H Н Option 3 Н H-C-H HTC H Н…

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Q: 19 IDENTIFY THE IUPAC NAME OF THE CO MPOUND CI

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Q: 4. Which glassware in the lab can be used to precisely measure volume of a liquid? Explain

A: Liquid takes the volume of the container in which it is kept.

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A: The answer for this problem is provided below in great details within the attached figures.

Q: A sample of argon initially has a volume of 4 L at 25°C. What is the new volume if the temperature…

A: Given Volume of gas = 4.0 L = Vi Temperature of gas (initial ) Ti = 25 0C = 273+25 = 298 K Final…

Q: For the reaction HCI(g) + NH3(g)→→NH4Cl(s) AG° = -103.7 kJ and AS° = -284.8 J/K at 254 K and 1 atm.…

A: Given , Reaction : HCI (g) + NH3(g) → NH4CI(s) ∆G°=-103.7 kJ∆S=-284.8 JKT=254 KPresssure , P = 1 atm

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A: This question is based on determination of  enthalpy of reaction.

Q: Calculate the scattering angle for which a 1-MeV gamma ray loses 200 keV in a scatter. ANS: 29.279°…

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Q: For Enolates, Which lead to the kinetic and thermodynamic products? A Kinetic 오 B Thermodynamic C D

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A: Combustion is a chemical reaction in which a fuel (such as a hydrocarbon, hydrogen, or alcohol)…

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A: According to Le Chateliar principle  if a system is in equilibrium is subjected to change of…

Q: What amount of heat, in kJ would be involved in condensing 18.8 g of CH₃OH (ΔHvap = 1.21 kJ/g)

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Q: what is the heat of vaporization of ethanol and dimethyl ether why does on of the  compounds have a…

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A: -> Chemically different H and C atoms are non equivalent hydrogen and carbon atoms .

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A: Electronegativity and hybridization plays an important role to find out the most acidic hydrogen…

Q: Thank you sooo much! I just have one more thing, how can I convert 15.8 atm to Joules

A: The conversion of the atm L to Joules is such that -->  1 atm L = 101.325 J

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Q: Represented by a Lewis structure the ammonium ion, NH4+. Then determine the molecular shape.

A: We have been given the ammonium ion, NH4+.We have been asked to determine the molecular shape of the…

Q: b Milk contains 1.65 ug of riboflavin per milliliter. If you drink one quart (946 mL) of milk, how…

A: Consider the given information as follows; Mass of riboflavin per milliliter = 1.65 μg  Mass of…

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Q: Which of the following statements applies to the reaction below? Pb(s) + 2 FeCl3(aq) → 2 FeCl2(aq)…

A: The addition of electrons or decreases in the oxidation state is known as a reduction reaction and…

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A: In systematic nomenclature, the suffix -carbonitrile is used to name compounds RC≡N

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A: potassium content in apple = 4600 mg/pound mass of apple = 86.0 g potassium requirement = 3500 mg…

Q: SO2Cl2 (g)SO2 (g) + Cl2(g). The  reaction is initiated, and the following data are obtained.…

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Q: I don't understand why there's a carbon in the middle of NH2

A: To answer: why there's a carbon in the middle of NH2

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Q: What would be the product of the following reaction? H O O ICH O OH H CH3 OCH; CH;O H CHO. OH CH₂OH…

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Q: If an object has a density of 0.423g/mL it will sink in a substance that has a density of 0.890g/mL.

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