Using isotope, can we trace back again our ancestors?

Q: lase. g/mol

A: Molarity of solution is defined as number of moles of solute dissolved per liter of solution.

Q: A shipment contains 800 Curries of Iodine-125 (T1/2  =  60 days)  a) How much will be left in 11…

A: Initial activitiy is given to be equal to 800 Ci.

Q: concentration

A: According to the question, the concentration of ascorbic acid is ~0.001 M in lemon juice, We need to…

Q: Answer question in letter f

A: Hi, as you have ked for part (f) so solving the same question.

Q: 1. - used as a tracer to diagnose pernicious anemia. - used in archeology, biological research, and…

A:

Q: How many total electrons are in Ne22+?

A: The atomic number of Neon = 10

Q: In mass spectrometry, alpha cleavages are common in molecules with heteroatoms. Draw the two…

A: Two alpha cleavages in the given molecule is represented as

Q: article size and g d on three variah

A: The synthetic precipitation can be used. The transformation course into strong over substance can be…

Q: Explain why the neutron-to-protonratio of stable nuclei increases as the atomic numberincreases.

A: To find: Why the neutron to proton ratio of stable nuclei increases as the atomic number increases

Q: 1. If you have 36 moles of R, how many moles of F3R2 wvill be produced? moles 3 FAD2 +2 R F3R2 +2 Ad

A: This question can be solved using law of equal proportions.

Q: A. Radiometric datin B. If daughter atoms C If parent atoms h

A: We know that radioactive dating is possible when daughter and parent minerals are not disturbed as…

Q: H D DH meso only 1| D, Pa Caco, Phco,, quinoline ROH 21 Na. NH, lkal, OH 1| NANH, NH, THE 21 D,.…

A: 1 . Lindlar catalyst - heterogeneous catalyst comprising of Pd deposited on Calcium carbonate or…

Q: What compound is C8H11NO MW=137, using the picture below

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Q: Part E Give the nuclear symbol for the isotope of potassium for which A= 40 ? Enter the nuclear…

A:

Q: e binding energy, i

A:

Q: OF, Co, Select Draw Rings More Erase Select Draw Rings More Erase F C

A: Lewis structures are diagrams that represent the valence electrons of atoms within a molecule.

Q: Pls help

A: Define Conformation ?

Q: .37

A: Dear student this question is related to spectroscopy.

Q: tohr Method is not good for determination of l- and SCN- due to O scattering of light O…

A: Mohr method is not good for determination of I- and SCN- because

Q: Rel. Abundance m/Z Proposed Identity ~1 45 100 44 ~11 28 -2 22 ~10 16 ~8 12

A: Please provide proper question this question is incomplete. Here we are given abundance we will…

Q: For numbers 106 -110, refer to the given choices below. For each pair of isotopes listed, predict…

A: NOTE : Since you've posted multiple sub-parts,we'll solve first three sub-parts for you. To get the…

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

A: Given:we have to find the antilog of each of the following numbers:a) 0.6590    b) 0.2304    c)0.70…

Q: जिोट मेट (णणेर केनंजलवेकळ +क्स गनण following.Cma • raw with farmal charge प्केक किoजकव tode ero on…

A:

Q: 45 The modern Periodic Table, lallol lallvl The discovery of the neutron. 16 47 The resolution of a…

A: Newlands arranged the modern periodic table according to their atomic weights, chemical and physical…

Q: energy is 10 eV? (Typical molecular binding energies range from 1 - 10 ev.) Submit Answer Submission…

A: The question is based on the calculation of ratio of photon energy to molecular binding energy.…

Q: Calculate the number of replicate analyses

A: To find the number of replicate analyses in the given image

Q: Question 29) is the attached correct?

A: TLC is the method to differentiate components in a compound.

Q: 24. N2O5 - 25. LizSO4 - 26. KOH - 27. H;BO; - 28. FeBr3 - 29. Mg3(PO:)2 - 30. PbCrO4 -

A: Here we have to write name of the compounds-

Q: nich of the following co oduct? O 136-137 °C O 50 °C D 120 °C O 98-104 °C 116-117 °C

A: According to the question, a student synthesize an impure product of a compound with a melting point…

Q: K=Ae- Ea/RT. Lnk=?

A: Interpretation: K=Ae- Ea/RT. Lnk=?

Q: nin x UNIT_8_PROGRESS_CHECK (Protected View) - Word (Unlicensed Product) Mailings Review View Help…

A: The dissociation reactions for 0.10 M HF and C2H4O2 are as follows:

Q: c energy

A:

Q: Hi  I want the answer for question e?

A: The chemical reaction between sodium hydroxide and phosphoric acid can be represented by the…

Q: QUESTION 23 231Thg0 14. 235U92 [a].

A: We have to predict what stands for a here.

Q: 1. Which chicken is more tender? Why is this so? 2. What do you think is the role of the papaya in…

A: chicken boiled with papaya is more tender because softness increase on adding papaya. role of papaya…

Q: Comporund rat Contains ma8se teis substance?

A: Gha

Q: n the old giant-impact model, the impact only formed a disk of material around the Earth, and the…

A: Answer -  synestia model - According to studies, synestia was an early-stage process for the…

Q: what does the values in 1 and 2 indicates?

A: The given curve is,

Q: A certain protein was found to contain 0.122%0.122% cobalt by mass. Determine the minimum molecular…

A: Mass percent can be expressed by the equation,

Q: Which nucllophile to favor conjugate addi an alpha, bela-unsat 3. 2. O CH3 CHz)3 mg Br CH,Li LIATHY…

A:

Q: please also explain your answer

A:

Q: tant peaks on the printed determined the Structural the printed

A:

Q: 1. DMAP (cat.) THF, rt R. ОМОМ HO 2. Ai203, 60 °C R = (CH2)3OBN

A: The mechanism of the reactions are given below

Q: Put it all together: Question: Do you think that if life did exist elsewhere it would be able to…

A:

Q: bectroscopy, the remaining UV light t max of coffee is at 272-274 nm. atements are correct. ement is…

A: UV spectroscopy is a powerful analytical technique to determine the optical properties…

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: 25. Which of the following molecules would boil at the lowest temperature? Explain why. A) C8H18 B)…

A: London dispersion force:  It is the weak intermolecular force, the temporary attraction force formed…

Q: 34 CallBr Ial Lollullvi 35 NO NO Bir Br J 18 an basd n the enerus

A: Electrophilic addition is characteristic reaction of Alkenes  while aromatic compounds mainly shows…

Q: Part E Give the nuclear symbol for the isotope of potassium for which A = 40 ? Enter the nuclear…

A:

Q: need a guided answer

A: Equilibrium constant  is defined as the product of concentration of products divided by the product…