Find the antilog of each of the following numbers: a. 0.6590 = b. 0.2304 =. c. 0.70 = c. 0.4997 =

Q: QUESTION 20 Iron-59 is a radioactive nuclide (t1/2 = 46 d) used in anemia diagnosis. If the initial…

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Q: 9. Who discovered optical activity? a) J. H. van't Hoff b) J. A. LeBel c) L. Pasteur d) Kekule

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Q: The rest mass of a proton is 1.0072704689 u and that of a neutron is 1.0086678612 u. The 1271…

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Q: This exercise uses the ra A wooden artifact from 5730 years. Round your yr

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A: The Carbon 14, or radiocarbon dating method is one of the best-known methods of dating human…

Q: 21.43 g

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Q: eTerences) This question has multiple parts. Work all the parts to get the most points. Use the…

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Q: The accompanying summary data on Ceo, particle sizes (nm) under certain experimental conditions was…

A: Total number of observations = 5 + 15 + 27 + 33 + 21 + 15 + 6 + 1 + 3 + 1 = 127

Q: A radioactive substance decays exponentially: The mass at time t is m(t) = m(0)ekt, where m(0) is…

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Q: Theodor Boveri said, “The nucleus doesn’t divide; it is divided.” What was he getting at?

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Q: A lab technician had 32 grams of a radioactive substance. Six hours later, only 30 grams remained.…

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A: Half life of the drug = 2 h Amount of drug initially present = 200 mg+200 mg = 400 mg Time = 11 – 7…

Q: How many times more massive is 68Ni in comparison to 12C?   Group of answer choices A. 0.18 B. 5.7…

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Q: 1. If you were given a 2.0 cm3 piece of aluminum and a 2.0 cm3 piece of lead, which would you…

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: A 0.82 gram sample of impure aluminum carbonate liberated carbon dioxide gas when HCI was poured…

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Q: The isotopes act as ____________ for measuring time. ▪To use this method, scientists must know:…

A: The blanks given are, The isotopes act as ____________ for measuring time. ▪To use this method,…

Q: MCQ 11: As the number of proton increases the ionization energy A. decreases B. increases C. remain…

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Q: a) Determination of slope. (Show work or use Excel best fit straight-line equation) b) Determination…

A: The given data relates to the radioactive decay of an unstable nuclide.

Q: Activity (counts/sec) 1 mm Cardboard Туре of Radiation Source No shielding Paper 1 mm Aluminum 7…

A: 1. Alpha particle is a helium nucleus, its penetrating power is negligible.

Q: Matching the following plants with the heavy metals they absorb v Hydrangeas A. Chromium ]Water…

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Q: Q11:. The size of the nucleus is experimentally determined using Rutherford's a-scattering…

A: Density is a measure of mass per volume. The average density of an object equals its total mass…

Q: Density of the hydrogen nucleus Calculate the density of the hydrogen nucleus using the information…

A: Given : Radius of hydrogen nucleus = 0.9 fm  Since 1 fm = 10-13 cm  Hence radius of hydrogen nucleus…

Q: What percentage of 205X (t1/2 = 87.0 h) would remain after 191.0 hours. Use the formula with 0.693…

A: The rate constant can be calculated using the equation, k=0.693t1/2=0.69387.0h=0.00796h-1

Q: A certain drug has a half-life in the body of 2.0 h. Suppose a patient takes one 100. mg pill at…

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Q: It says use these measurements to complete the entry for Molly be denum in the periodic table that…

A: Representation of an Element                                                            XZA  or XZ…

Q: 1:47 14.0 U * KBIS LIED il Rl 57% Adobe Scan 09 Dec 2021 and s

A: E : present  C2 axis : absent  C3 axis : absent   i : absent  Sigma plane : absent  Because benzene…

Q: 27 Al 3t 13   what is the number of proton neutron and electron

A: Given, the element is 13Al27.

Q: 40 Li ions were formed. How many electrons were removed?

A: Given, number of Li ion formed = 40 Li ion number of electrons were removed = ? Note:  Li ➝ Li+ + e-…

Q: A 1.50-g sample of NazSxOs contains 6.68 x1021 sodium ions. Determine the value of x. Show all your…

A: The molar mass of Na2SxO6 would be: molar mass = 2(Molar mass of Na) + x(Molar mass of S) + 6(Molar…

Q: What percentage of the energy we use comes from the sun?  a.25%  b.50%  c.More than 90% d.Less than…

A: What percentage of the energy we use comes from the sun is less than 10%  or even less than 1% as…

Q: 7.53 Calculate th 20°C if the pressi radius is 0.040 cm

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Q: What percentage of 149X (t1/2 = 81.9 h) would remain after 37.0 hours. Use the formula with 0.693…

A: Given radioactive element is 149X. Its half life t1/2 =81.9h Since, radioactive decay follow first…

Q: What is the name of John dalton’s theory

A: The correct answer is given below

Q: Example 1: Distribution of 4 particles with identical energy in 4 volumes..

A: All the possible distribution of molecules in the energy states gives the number of microstates.…

Q: element for which Zeff = Z. Type the symbol for this element in the box below. [answer]

A: As we know, Zeff is effective nuclear charge . It means the net attraction of nuclear on outermost…

Q: 1. A. Complete/Completing analysis B. Trace analysis C. Proximate analysis D. Ultimate analysis 2.…

A: Note: Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: Since Cu (Copper) has a d count of 10 (d10). Hence, what is the d count for Cu(I)?

A: The configuration of Copper – Cu = 1s2 2s2 2p6 3s2 3p6 3d10 4s1

Q: What form of emission is depicted in this nuclear reaction (the particle is not shown)

A: The nuclear reactions are a type of chemical processes which lead to the formation of some new…

Q: radius of a Pu nucleus

A: The term radius for an atom is frequently measured as the distance from the centre of the nucleus to…

Q: (References] Use the References to access important values if needed for this question. Taking…

A: The question is based on the concept of logarithmic calculations. We have to  calculate log and…

Q: what is an intensive observation of gold?

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Q: A 22-gram sample of Aluminum-25 (half-life of approximately 7.2 seconds), was left undisturbed for 1…

A: Here we have given a radioactive Aluminium-25  Half life is 7.2 second Asked about decay constant…

Q: (References) Use the References to access important values if needed for this question. Taking…

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Q: What elements make up 99% of muscle in living organisms? * A. Carbon, Sulfur, Oxygen, and Hydrogen…

A: Muscles of a living organism contain proteins that are made of amino acids and blood that is mainly…

Q: Carbon Dating The age of an ancient artifact can be deter- mined by the amount of radioactive…

A: Radioactive decay follows first order kinetics. The integrated rate equation for a first order…

Applications of Molecular Spectroscopy

When light sources pass through the diffraction grating then light splits into different wavelengths. The light source produces two types of patterns that are shown as destructive and non-destructive. The light source is in the form of quanta that is quantitation.