4. Ion microprobe U-Pb measurements on a fossil tooth gave the values in the table below (Sano and Terada, 1999). What is the age of this tooth? Table 1. U-Pb measurements on a fossil tooth. Sample I.D. 1234 238U/204Pb 206Pb/204Pb 36.7 8.82 26.4 5.95 57.8 13.99 78.8 17.30
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- is beta hCG testing a analytic technique? why or why not?S outo Classes e myBackpack C Infinite Campus 9 New Tab File| /media/fuse/drivefs-a644cf067c63cc0d1217e47dfd368497/root/k.g_k.sch_ZG9taW5pY28ua2FudG9yQGFwc2sxMi5vcmc_Whiteboar. Q < * 1 /1 Good Day 03 Be O +2 AIC→I AbO, •3 Be Cla a) what is the molar mass? BeO , AlzOa b) How many mols of beryllium chleride are produced from 13 mols of BeO?(1-step) ) How many grams of Al,O, are 9 mol AICI,? (2-step) ) How many grams of Al2Og are produced Srom 100g BeO (3-step) e) Determine the limit ing reartan ti 13 7mol BeO ;13.7mol Al Cl, produced from 5) Determine excess reactant 4Sa BrO j 75q AICIS US VO 11:12 @ %23 2$ % 4 7 8 backsp W e y d h kFile Edit View History Bookmarks Profiles Tab Window Help "ome N Watch Gilmo x E dt8827@unc x a Module 11 F X My Wellness X A ALEKS - Dav X A ALEKS - Rey x A www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNslkr7j8P3jH-IvdWKW_BBZZI6tTytly4Fcfu6zOtof80MM9sLGhaxz6nr O Spotify Web Playe.. M common Ethical D.. O CHEMICAL REACTIONS Interconverting number of atoms and mass of compound Calculate the mass of vanadium(V) oxide (V,05) that contains a million (1.000 × 10°) oxygen atoms. Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits. Explanation Check O 2022 McGraw Hi APR ... ... 18 80 O00 II
- For the reaction of NO, to form NO and O2, which reaction vessel (all at different temperatures) would yield the smallest equilibrium constant? 2NO2(g) = 2NO(g) + O2(g) Datasheet and Periodic Table A8-12 3: 7 T. H. K V All IN ofWrite Ksp for Ca3 (PO4)2 salt ... a. [Ca2+]3 [PO4]² b. [Ca2+] [PO43-1² c. [Ca]³ [PO43-]? d. [Ca2+]² [PO43-13 e. [Ca2+]3 [PO43-1?the a 167436) b.-157436) a 3731.25) d 373125)
- Tube Tris/CaCl, pH8 (ml) BAPNA Trypsin (µL) (µL) Final [BAPNA] (mM) 1 2.895 5.0 100 2 2.89 10.0 100 3 2.875 25.0 100 4 2.85 50.0 100 5 2.80 100 100 6 2.70 200 100 7 2.50 400 100 8 2.10 800 100Chem 2022 q 2eFundi : NCHE 222 1-1 P 2022: T x ONDERRIGTOETS 1 (15/08/1996) X C During the following SEAr a rear efundi.nwu.ac.za/access/content/attachment/ff61786b-e0dc-4772-92ee-ce336c2dc89c/Tests%20_%20Quizzes/c2e624a9-0986-4469-a247-dbe70bd2eae8/202... Q ← → C ONDERRIGTOETS 1 (15/08/1996) 1/2 b Success Confirmation of Question X + 389% + A Why is HNO3 activated (NO2) (SEAr) by H₂SO4 during nitration, but not H₂SO4 activated by HNO3? x 11:39 2022/09/09 ⠀ ⠀
- Q4: Consider the following XRD pattern for Aluminum, which was collected using Cuka radiation. Intensaty () (38.43,100.0) 100 90 ALUMINIUM 2=1.540562 A 80 70 60 (44.67,46.9) 30 40 (65.02,26.4) (78.13,27.9) 30 (116.36,11.9) 20 (111.83,12.2N (82.33,7.8) 10 (98.93,3.6) 20) 5 10 15 20 25 30 35 70 75 s0 85 90 100 105 110 115 120 65 95 Index this pattern and determine the lattice parameters. Steps: (1) Identify the peaks. (2) Determine sin 2 0. (3) Calculate lattice parameters4mL of diluted protein solution was prepared by mixing 200uL of the protein solution with 3.8mL of distilled water. 100uL of this diluted was then mixed with 900uL of Lysozyme solution. Lysozyme activity was measured at 450nm and gave a reading of -0.080 (Abs/min). Calculate the concentration of lysozyme activity in units of abs/min/mL.Bb Tangipahoa P A Classes O Thomas Willia x E THOMAS WILL O OnCourse Con x E The Spread of x A Assessment: C x G disseminate ir x b oncourseconnect.com/assessment/1651875/41774aa4-b498-clc9-30b9-e734c5204a10 O TPSS Bookmarks CHEMISTRY BENCHMARK TEST 01 CHEMISTRY I 12-3 (THOMAS WILLIAMS, ID: 12390719) 2 of 35 Each equation shows a radioactive isotope giving off some form of radiation, labeled X. Which equation suggests that an alpha particle is being emitted? yC – 4N + }X SU – Th + ;X Be + He ?C + ;x O Co + on - 9Co + X A 8 10 Ne 2 4 5 6 7 Save/Exit 1