Chapter27: Molecular Fluorescence Spectroscopy
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- - OWLV2 | Assigr X MindTap Cen X gs MindTap - Cen x Gamu of ca Go X b My Questions static/nb/ui/evo/index.html?elSBN=9781337790840&id%3D299783426&snapshotld%3D7857658& CENGAGE MINDTAP Q sea napter 8: Chemical Composition AA e. aluminum sulfate Answer 51. For each of the following samples of ionic substances, calculate the number of moles and mass the positive ions present in each sample. a. 4.25 g of ammonium iodide, NH,I b. 6.31 moles of ammonium sulfide, (NH4), S c. 9.71 g of barium phosphide, BagP2 d. 7.63 moles of calcium phosphate, Caz (PO4)2 52. For each of the following ionic substances, calculate the percentage of the overall molar mas4 W A.b.l0l0a2X 103 2.998 x10 25410-9 VI of pnat r roona9 cow of of s/omad ot .Smy Zo sotary EP C A85I0 SUI 1.24 x 10+ 1,871 x10B Brock Sakai : CHEM 1P91 - Fall X b My Questions | bartleby ChemTeam: Combustion Analys X G oxygen molar mass - Google S X + Ims.brocku.ca/portal/site/90b45528-0b04-4bd2-85b6-897046a1e998/page/7011eaa9-4e38-4b06-9e15-1973abb58ef6 Version 264 Assign 4 1 / 2 100% + 2. A mixture of Na2SO4 and its hydrate Na2SO4-10H2O has a mass of 1.5099 g. After heating to drive off all the water, the mass is only 1.1410 g. What is the weight percentage of Na2SO4•10H2O in the original mixture? Report your answer to 4 significant figures. Molar masses: Na,SO4 142.04 g/mol; Na,SO4•10H2O 322.19 g/mol. 3. MnCl2 reacts with AgNO3 in aqueous solutions to produce a precipitate of AgCl that can be filtered and weighed. The balanced equation for the reaction is: MnCl2 (aq) + 2 A£NO3 (aq) → 2 AgCl (s) + Mn(NO3)2 (aq) Suppose you have a mixture that contains MnCl2, plus other compounds that do not react with AgNO3. If 0.5159 g of the mixture yields 0.8715 g of AgCl, what is the percentage of MnCl2 in the mixture?…
- S #1 X K Maya Paniagua - Chem Bal x EMaya Paniagua - Unit 1: Mo x K Maya Paniagua- L8.8 CW LM web.kamihq.com/web/viewer.html?state%=%7B"ids"%3A%5B"1-iZgelEZyOML1EgliHSzHmkgcB7SZPdc"%5D%2C'acti Maya Paniagua - Cl. A Kami Uploads Maya Paniagua - Chem Balance Eq.pdf Chemistry Balancing Equations Worksheet #1 Balance the equations below: 1) N2 + H2 → _ NH3Sample IdentificationCodeConcentration of M%TA=2-log(%T)Q50004.00 x 10-417.90.75Q50013.20 x 10-425.00.6Q50022.40 x 10-435.70.46Q50031.60 x 10-450.20.3Q50048.000 x 10-570.80.15SampleIdentificationCode%TA=2-log(%T)AMQ0210150143.70.359518560.360.000192Q0210150244.10.355561410.360.00018Q0210150343.80.358525890.360.00017Q0210150444.10.355561410.360.00018Q0210150543.80.358525890.360.00017What was their percent error?43%Does Batch 021015 meet legal requirements?No, because it is not between 2.85 * 10(4) and 3.15 * 10(4)Well #DropsBluedye1234567891012345678910Drops 9Distilled water876543210Concne 0.26tration0.52Test Tube #0.781.041.3Solutions3Concentration (M)2.082.32.6Concentration (ppm)1:1 dilution11.82Starting Dilution21.562:1 dilution0A.Zero standard0Was your calibration curve as linear as you expected?B.Did you experience any âdriftâ of the resistance readings?C.What is the equation of your best-fit line?D.What commercial drink did you analyze?E.Assuming…chrome extension://bpmcpldpdmajfigpchkicefoigmkfalc/views/app.html Describe the standard units of time. Desaibe the standard units of length. Describe the standard units of mass. Student Name Period Date What units are used to measure very small objects? Describe them. Video 3 - Measure: What's the Temperature? Etaswww.nbs.arrzidkalmezarewhats emRraturedugge- Describe the three basic scales to measure temperature. Fahrenheit Celsius
- molar mass of na2s2o3-Google X October 1, John Searle "Minc @ x + www-awu.akeks.com/alekscgi/x/Isl.exe/1o u-lgNslkr7j8P3jH-lix5uFZIVj2iEJjąd1WoxT77ErtzZpGbzESW6u_S5FZDV02WDPG OKqpiLH65e00TK3cK7TrLikOsdoZA3aRgGhL.. O ADVANCED MATERIAL 三 Solving applied mass concentration problems In 1993 the Minnesota Department of Health set a health risk limit for 1,2-dibromoethane in groundwater of 4.00 ng/L. Suppose an analytical chemist recelves a sample of groundwater with a measured volume of 78.0 mL. Calculate the maximum mass in micrograms of 1,2- dibromoethane which the chemist could measure in this sample and still certify that the groundwater from which it came met Minnesota Department of Health standards. Be sure your answer has the correct number of significant digits. ロ x10 Explanation Check 2020 McGraw-Hill Education. All Rights Reserved. Terms of Use | Prie6L O Mass-Mass Stoich -s-1.doc: SC courses/216161/files/23613413?wrap%3D1 Mail-GUY, YIE LHH Ou J) > Files > Mass-Mass Stoich -s-1.doc .. Ss-Mass Stoich -s-1.doc Coad Mass-Mass Stoich -s-1.doc (31 KB) 20OM 2. BALANCE the following equation: ---------> C0, + H,0 a) How many grams of octane, C3H18, will be needed to produce 47.0 grams of carbon dioxide? C3H18 + O2 b) How many grams of water will be produced from 98.0 grams of oxygen?nt x A ALEKS вЬ Еxcel 20 х Yuzu Re x U Labflow x O COVID-1 x e Daily Cri x O Among 8 GivePu A www-awn.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNslkr7j8P3jH-liJOkWynm4w-aQ-rw-zRhgRnayfmbBs65spECOJQ0Zacn81gbBjC9 B Blackboard O Mail - Ava Schied.. O UAConnect 9 Biology Syllabus H Labflow - Courses V Explore - HogSync ? Packback O CHEMICAL REACTIONS Identifying the limiting reactant in a drawing of a mixture The drawing below shows a mixture of molecules: key carbon hydrogen nitrogen sulfur oxygen chlorine Suppose the following chemical reaction can take place in this mixture: CS,(9)+30,(9) - CO2(9)+2 SO,(9) Of which reactant are there the most initial moles? Enter its chemical formula: Of which reactant are there the least initial moles? Enter its chemical formula: Which reactant is the limiting reactant? Enter its chemical formula: Explanation Check © 2020 McGraw-Hill Educa MacBook Pro II
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