-Learn com/alekscgi/x/Isl.exe/10_u-IgNslkr7j8P3jH-lisErJgUUPPZJ6ap5pGUO Press (fn) F to exit full screen p-PfpcntsH8HtUDBQCdvGmtUcwsVrOaQpXXFwWvo?1aBw7QYjib Measurement Identifying errors in the solution to a basic quantitative problem 15 Study the problem and proposed solution below. Is the final answer correct? Then click the No mistakes button. Is the final answer wrong? Then click the button in front of the line with the first mistake and correct the mistake. Note: don't worry about correcting the rest of the solution, after the first mistake. Problem: μ The velocity of an object is the distance it travels per unit time. Suppose the cm velocity of a gliding bird is measured to be 174. the bird to travel 2.3 m. . Calculate the time it will take 0.0 S 号 pla X Be sure your answer has a unit symbol and the correct number of significant digits. Solution: о v = st Write down the definition of velocity. O 0 t = S Solve for time. 174. 1 = S 2 Put in the data given. 2.3 x 10 0 t = 0.7565... S Use the calculator. о t = 0.76 s Round to the correct number of significant digits. O No mistakes G Emma

-Learn com/alekscgi/x/Isl.exe/10_u-IgNslkr7j8P3jH-lisErJgUUPPZJ6ap5pGUO Press (fn) F to exit full screen p-PfpcntsH8HtUDBQCdvGmtUcwsVrOaQpXXFwWvo?1aBw7QYjib Measurement Identifying errors in the solution to a basic quantitative problem 15 Study the problem and proposed solution below. Is the final answer correct? Then click the No mistakes button. Is the final answer wrong? Then click the button in front of the line with the first mistake and correct the mistake. Note: don't worry about correcting the rest of the solution, after the first mistake. Problem: μ The velocity of an object is the distance it travels per unit time. Suppose the cm velocity of a gliding bird is measured to be 174. the bird to travel 2.3 m. . Calculate the time it will take 0.0 S 号 pla X Be sure your answer has a unit symbol and the correct number of significant digits. Solution: о v = st Write down the definition of velocity. O 0 t = S Solve for time. 174. 1 = S 2 Put in the data given. 2.3 x 10 0 t = 0.7565... S Use the calculator. о t = 0.76 s Round to the correct number of significant digits. O No mistakes G Emma

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter34: Particle Size Determination

Section: Chapter Questions

Problem 34.12QAP

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Host E Chen = 11C |= 11C|| S Ancie G timel G scien G differ Dino 2 BoneG pictu + Why om/d2l/Ims/quizzing/user/attempt/quiz_start_frame_auto.d21?ou=D3336147&isprv=&drc3D0&qi=3151427&cfql=D0&dnb3D0&fromQB= ct Values shlee Garcia: Attempt 1 b. Given the mass of the asteroid to be (7.586x10^14) in grams and the diameter of the Earth (1.28x10^4) in km. Calculate the expected distribution of asteroid dust over the surface of the Earth in grams per cubic centimeter(g/cm2). Note: The your answer is assumed to be reduced to the highest power possible.(This means that everything is in scientific notation) When entering units for the answer, use the symbol for the unit, and if the unit has an exponent, enter the exponent as a carat(^). For example, grams would be "g" and, the unit grams per centimeter squared would look like, g/cm^2. %3D Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answer units 330F 20 dy
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 k
B Quizzes - SCH3UE-15-Chemistry- X + A tdsb.elearningontario.ca/d21/Ims/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=19297865&isprv=&drc=1&qi=5956344&cfql=0&dnb=D0.. E TDSB Bookmarks • Summary - PayPal Steam Guard Mobil.. Booter Panel l Asylum Stresser - H.. A Free Stresser - The. O Str3ssed Booter - L. O Home | IP Stresser 3 - Packages >> What is the main difference between a qualitative analysis and a quantitative analysis of a solution? The two must be done independently of each other, as they are completely unlike. A qualitative analysis must always be done before a quantitative analysis. A quantitative analysis must always be done before a qualitative analysis. A qualitative analysis identifies the type of ion in solution and the quantitative analysis will determine how much of this ion is present. A quantitative analysis identifies the type of ion in solution and the qualitative analysis will determine how much of this ion is present. i 11:15
= e Home-Liferay X ALEKS-Alasia Fuqua - Learn F 12PM SPAN 101 Instructions to ← → C www-awu.aleks.com/alekscgi/x/Isl.exe/10_u-IgNslkr7j8P3jH-IBjuJnuCDtT6kRBabGFF3MoAkZ_UVX0N202geoxT1611PLTC X O CHEMICAL REACTIONS Identifying the limiting reactant in a drawing of a mixture The drawing below shows a mixture of molecules: Explanation carbon Check nitrogen oxygen key O hydrogen O sulfur Suppose the following chemical reaction can take place in this mixture: 2 C₂H₂(g)+50₂(g) → 4 CO₂(g) + 2 H₂O(g) chlorine 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: X 0 VHL Central | Code Acti X La
A ALEKS-Alasia Fuqua-Learn = (43) THE NEW OUTLAST?!-Jaw X ← → C www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-1BjuJnuCDtT6kRBabGFF3MOAKZ_UVXON202gQ_IWvS470tHNd1kBsKRoy8WfXEBm-Ky5RMDtaRgbulPm5W_Isl815AMZE_0?10Bw7QYJL < O CHEMICAL REACTIONS Writing the net equation for a sequence of reactions X + The extraction of aluminum metal from the aluminum hydroxide in bauxite ore by the Hall-Héroult process is one of the most remarkable success stories of late 19th century practical chemistry, turning aluminum from a rare and precious metal into the cheap commodity it is today. In the first step, aluminum hydroxide reacts to form alumina and water: 2 Al(OH)3(s)-Al₂O3(s) + 3 H₂O(g) 11 In the second step, alumina and carbon react to form aluminum and carbon dioxide: 2 AL₂O3(s)+3 C(s)-4 Al(s) + 3 CO₂(9) Write the net chemical equation for the production of aluminum from aluminum hydroxide and carbon. Be sure your equation is balanced. Explagation Check THE 60 X CD 3/5 M D D ES Alasia V…
Find the apparent Km and apparent Vmax for the enzyme reaction containing the inhibitor and identify the type of inhibitor The increment on the X axis is 25uM The increment on the Y axis is 8 sec uM We VISI O appvmax-0.05microM/sec; appKm=0.02microM: mixed O appvmax-0.05microM/sec; appKm=0.02microM; uncompetitive O appvmax-0.075microM/sec, appKm-0.013microM; competitive O appvmax-0.05microM/sec; appKm-0.013microM; uncompetitive O appvmax 75microM/sec; appKm-13.3microM; uncompetitive
For an enzyme -catalyzed reaction, KM=10.0 mmol dm-3, vmax=0.250 mmol dm²³ s-'; [E]o= 2.3 x 10-6 mmol dm-3. Calculate the catalytic efficiency (=kb/KM) of the enzyme. 0.920 dm³ mol-l s-1 3.1 x 107 dm³ mol-1 s-1 1.1 x107 dm³ mol-l s-1 0.250 dm³ mol-l s-1
O Copy of spread ofjsla X E The Spread of Islam M Inbox (904) - aarojame x A Classes oncourseconnect.com/assessment/1651879/5287e2a3-0d0b-e2c0-c15c-3e68a37149b4 D TPSS Bookmarks CHEMISTRY BENCHMARK TEST 01 CHEMISTRY I 12-7 (AARON JAMES ID 12390724) Use the reaction equation to answer the question. Zn + Pb(NO3)2 - Pb + Zn(NO3)2 The reaction shown took place when a student placed a piece of zinc (Zn) metal in a solution of lead nitrate (Pb(NO,)2). Which statement correctly describes the oxidation and reduction that occurred in the reaction? Zn was oxidized and Pb was reduced. DPb was oxidized and O was reduced. N was oxidized and Zn was reduced. OO was oxidized and N was reduced. A Save/Exit 24 25 26 27 28 29 30 31 32 33 https://www.oncourseconnect.com/assessment/1651879/5287e2a3-0dob-e2c0-c15c-3e68a37149b4#
Commun x Bb Blackboard Collaborate Ultra -2 X General Psychology-Fall 20 O X A ALEKS - Griffin Barden - Learn ww-awa.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-JcZzdcvSCzsqTCIDqNGV3bKqhMfPmUcQ4ENkmiXn9QCwgeDPDkQ06yszYWESPcekwL0-Qg619rekU7404HgFAGBEZaDr080?1oBw7QYjibavbSPXtx-YCjsh_7mMmrq#item O THERMOCHEMISTRY Griffin V Using Hess's Law to calculate net reaction enthalpy Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. In the first step, nitrogen and hydrogen react to form ammonia: N,(g) + 3 H,(g) → 2 NH3(g) AH=-92. kJ In the second step, ammonia and oxygen react to form nitric acid and water: NH3(g) + 20,(g) HNO3(g) H,O(g) AH=-330. kJ – + Calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. dla Round your answer to the nearest kJ. kJ
B Quizzes - SCH3UE-15-Chemistry- X + A tdsb.elearningontario.ca/d2l/Ims/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=19297865&isprv=&drc=1&qi=5956344&cfql=0&dnb=D0... 2 E TDSB Bookmarks P Summary - PayPal Steam Guard Mobil.. M Booter Panel ul Asylum Stresser - H.. A Free Stresser - The. 6 Str3ssed Booter - L. O Home | IP Stresser 3 - Packages >> What can be added to a solution containing Sr2*(aq) ions to precipitate the ions from the solution? potassium sulfate barium hydroxide O lithium nitrate Two of the above are correct. (a). (b), and (c) are all correct. 围 i 11:15
B Quizzes - SCH3UE-15-Chemistry- X + A tdsb.elearningontario.ca/d2l/Ims/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=19297865&isprv=&drc=1&qi=5956344&cfql=0&dnb=D0... 2 E TDSB Bookmarks P Summary - PayPal Steam Guard Mobil. Booter Panel l Asylum Stresser - H. A Free Stresser - The. O Str3ssed Booter - . O Home | IP Stresser 3 - Packages >> In testing for the presence of lead(II) ions in solution, Jamaal adds a solution of sodium nitrate. What will be the conclusion of the test if no precipitate forms? Lead(II) ions are not present in solution. Lead(II) ions are present in the solution. Lead(II) ions are present, but in a very small concentration. More sodium nitrate solution needs to be added before a conclusion can be made. No conclusion can be made in this test. 围 1 11:14
A ALEKS - Alec Nema - Learn CA Chemistry Student Needs To St x A www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-lgNslkr7j8P3jH-lvUrTNdLZh5A8CnG03PBGuXr8iCPa7ZMmym9aYWPfIIX1y3qHtwPSAMTD3ajhLHPg1MKLd57R. Pausec E Apps Sprouts Academy. 9 Online Tutoring C 400 Request Heade.. Q Weather & Soil CH... O ADVANCED MATERIAL Alec v Understanding the difference between strong and weak acids The chemical formulae of some acids are listed in the first column of the table below, and in the second column it says whether each acid is strong or weak. Complete the table. List the chemical formula of each species present at concentrations greater than about 10-6 mol/L when about a tenth of a mole of the acid is dissolved in a liter of water. strong or weak? species present at 106 mol/L or greater when dissolved in water acid dla H,PO, weak H,S weak HI strong HCIO, strong Explanation Check O 2020 McGraw-Hill Education. All Rights Reserved. Terms of Use | Privacy I Accessibility P Type here to search 8:12 PN…