2- Heat Decomposition mass Curve of sample S with mass 25.00 mg is shown below. Studythe TGA thermogram and answer the following questions: -3025in17%) A20(19.38%29.88)1510CTemperature ('C)100200300400500600700 75780204060Time (min)a- Calculate the percentage of the remaining sample at steps1- A2- Bb- How much the residue of the sample in mg after the heat decomposition has completed?Weight (mg)뜨

An atom is the basic and fundamental unit of matter. An atom consists of electrons and the nucleus…

2- Heat Decomposition mass Curve of sample S with mass 25.00 mg is shown below. Study the TGA thermogram and answer the following questions: - 30 25 20 19 18 (29.880 15 10 Temperature (C) 100 200 300 400 500 600 700 757 20 40 60 80 Time (min)

2- Heat Decomposition mass Curve of sample S with mass 25.00 mg is shown below. Study the TGA thermogram and answer the following questions: - 30 25 20 19 18 (29.880 15 10 Temperature (C) 100 200 300 400 500 600 700 757 20 40 60 80 Time (min)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Q.1 Please write legibly and box answers for sections a,b,c,d, thank you.
00 P and Hei 3. Considering the techniques and instrumentation used to perform these experiments, identify 2 potential sources of error if you were to repeat this experiment in the "real world". Human error is not an acceptable answer. Discuss at least two possible sources of error that could contribute to your percent error. 4. A student is performing Reaction 2 and does not completely dissolve the NaOH pellets before acquiring the final temperature. How will this affect his value for AH, and his percent error calculations?
< SC STARTING AMOUNT Tap here or pull up for additional resources ! 1 ♡ A * X F1 @ 2 W S ** F2 #3 80 F3 E D $ 4 q F4 R (1000)³ 10 (0.01)³ 4300 F ft" A shop-vac is capable of pulling in air at a rate of 150 ft/min. What is the rate of the vacuum's air flow in L/s ADD FACTOR * ( ) % 5 S in F5 T 2.54 (2.54) (1) (10) cm³ mL' G Question 26 of 31 ^ 6 60 1000 ft mL C F6 Y 150 (150) 12 L min MacBook Air H ANSWER & 7 O 0.01 71 (12) 44 F7 ft/min L/s U *00 8 J 5900 1 RESET 5 in³ cm DII FB 71000 I 4.6 L' ( 9 K F9 0 ) 0 1 A F10 1 P 4 : F11
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A empty evaporating dish weighs 30.56g. You place 20.0mL of an NaCl solution in the dish plus the solution weighs 53.31g. You evaporatorate the solution to dryness ant find that the evaporatoring dish plus the residue weighs 32.25g. What is the w/v%? What is the w/w%? What is the molarity?
5. If Cv.m (7/2)nR, what is y (where y = CP,m/Cv,m)? = (a) 7/8 (b) 4 (c) 9/7 (d) 7/4
b Success Confirmation of Questic x y! Which of the following is true of x ← → CD drive.google.com/drive/u/0/my-drive? Ifhs=2 o RC Email + VConnect ← + New @iⒸ D IMG_1329.heic O My Drive Computers Shared with me Recent Starred Trash Storage 27.98 GB of 100 GB used Buy storage Search List Q Search in Drive M Sug 1 2101-01 C Yo F Screening Appoint.... + Opportunity Queue 3 What is the organic product? CH₂CH₂C=CCH, A. New Tab D. New folder O + H₂ RC RRL G Google Google Docs in Elms College Open with B. E. X Lindlar catalyst My Drive - Google Drive + None of the choices are correct. N C. X + 0 US The microbiene is a colletion of th század's body, stach an darskin on puhaltet. The manobioraz is post of amand flora and helps usätään Research Paper You edited in the past week ☐ + Name Dec 16 ↓ 7:34 + 19 ☐ : X ⠀ +
Downvoted for wrong solution. A river is carrying water containing 2000 mg/l Magnesium Chloride into a small lake. The lake has a naturally occurring Magnesium Chloride of 50 mg/l. If the river flow is 2500 Lmin and the lake flow rate is 1.5 m³.sec¹, what is the concentration of MgCl2 in the lake after the discharge point? Assume that the flows in the river and lake are completely mixed, that the salt is a conservative substance, and the system is at steady state.
_engine.html?ClassID=1752193328# What is the enthalpy of the reaction, in kJ/mol, knowing that 7.5 g KNO3 absorbs 2597 J of energy? KNO3 → K* + NO, qrxn = +2597 J %3D AHxn = [ ? ] kJ/mol Enter either a + or - sign AND the magnitude. Use significant figures. AH,rxn (kJ/mol) Enter
STARTING AMOUNT esc Tap here or pull up for additional resources ! 1 Q A X * 2 30² F2 W S # 3 80 F3 E D $ 4 (1000)¹ 0.01 100 Q F4 R ADD FACTOR * ( ) FL % 5 J F5 T m³ Convert 7.6 cm³ to m³ (0.1)* (0.01) 1000 (100)³ 7.6 x 10-4 G Question 25 of 31 ^ 6 cm³ F6 Y - ANSWER 0.076 m & 7 H (1)³ 7.6 cm K F7 * 00 0.1 7.6 x 10⁰ 8 RESET J 12 DII FB 1 1 ( 9 K F9 ) O O 4 F10 L P
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ATROVENT Nasal Spray contains 0.03% w/v of ipratropium bromide in a 30-mLmetered dose container. If the container is calibrated to deliver 345 sprays,calculate (a) the volume of each spray, in microliters, and (b) the number ofmilligrams of ipratropium bromide in each spray.