Visited Learning Science 00:00 University of BRISTOL 00:00 View Transcript Do not force the pipet Afiller onto the end of the pipet, as you risk breaking the pipet which can cause an injury. In this case, do not force the last drop out of the pipet. It is calibrated with this left in the tip. Remember that some pipets do require the last drop to be expelled. A stock solution has a concentration of 1.10 M. A 0.0275 M solution is required. If you use a 1000.0 mL volumetric flask for the dilution, what volume (in mL) needs to be taken from the stock solution? mL

Visited Learning Science 00:00 University of BRISTOL 00:00 View Transcript Do not force the pipet Afiller onto the end of the pipet, as you risk breaking the pipet which can cause an injury. In this case, do not force the last drop out of the pipet. It is calibrated with this left in the tip. Remember that some pipets do require the last drop to be expelled. A stock solution has a concentration of 1.10 M. A 0.0275 M solution is required. If you use a 1000.0 mL volumetric flask for the dilution, what volume (in mL) needs to be taken from the stock solution? mL

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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Campuswire Bb Chapter 3 – 2150 Fall 2021 08/ X D (268) COVIDeos lecture series X (268) Deep House Mix 202 1 X Get Homework Help With Chec X C It Is Pertolu: - Blackboard Lex 101 Chem101 + app.101edu.co M Apps G M Gmail YouTube Maps а АМAZON Translate Gflights Case Status Onlin... Reading List Question 15.c of 30 Submit How does the quantization of energy explain the observed photoelectric effect and emission of UV energy? When light shines on a metal, electrons can be ejected from the surface of the metal in “the photoelectric effect". Experiments showed that the wavelength of light is inversely proportional to kinetic energy of the electrons ejected. Identify the best explanation of the photoelectric effect. A) Increasing the brightness of incoming light increases the kinetic energy of the ejected electrons. B) Increasing the wavelength of incoming light increases the kinetic energy of the ejected electrons. C) Increasing the frequency of incoming light increases the kinetic energy of…
Application 14. Given the function f(x) = 3x3 - 48x find the following: (Round to 1 decimal place) a) The x and y intercepts [K/U: ] b) The local maximums and minimums [A:. c) Find any points of inflections [A: I d) Graph the function [C 5
A bedroom has a volume of 108 m^3. What is it volume in cubic kilometers (Km^3)?
er| Portal x Edulastic O Science Spring Semester Exm bapp.edulastic.com/student/assessment/5f18467bc420a100086da 115/cla 28b60984e66etd62fac10/uta/6a9 Elementar. K! Kahoot R ReadWorks Play Quizizz! Newsela Assignm Commontty As ty Play no. Question 5/10 > NEXT BOOKMARK Water is boiled and steam is produced. This is a physical change because the water particles A. have turned into something new. B. are still water particles. C. have reacted with each other. D. have been destroyed. B.
+ > C a apclassroom.collegeboard.org/113/assessments/assignments/44514144 Login 6 My AP Login - Coll. I LanguageTool - Onl. Co. Biography of Albert. Pre-AP Unit 3 Learning Checkpoint 2 CollegeBoard 1-0-0-0-0-00-0 10-11 4 9. Question 9 A CH4 (g) + 2 O2 (g) CO2 (g) + 2 H2O (g) When CH,(g) is burned in 02(g), the reaction represented by the equation occurs. If 32 g of CH, is burned completely, how many moles of CO, are produced? Enter the number of moles to the nearest whole number. mol TL 11 46
Docume x → C Netflix Thermo X Cosmet x C Laptops x M Inbox (7 X learn.canterbury.ac.uk/ultra/courses/_19016_1/outline/edit/document/_3537106_1?courseld=_19016_1&view=content WOWER Saturati x C Buy TCL X a Amazon x C Show Y X G what's X Email - X យ ☆ b The dia x 90 h * ☐ 3. Calculate AG" and AG for the isomerization of dihydroxyacetone phosphate (DHAP) to glyceraldehyde 3-phosphate (GAP). This reaction takes place in glycolysis. At equilibrium, the ratio of GAP to DHAP is 0.0475 at 25°C (298 K) and pH 7. If the initial concentration of DHAP is 2 x 10 4M, and that of GAP is 2 x 10 M would the reaction be spontaneous under these conditions? (Answer: AG" = -RTINK= 7.54 kJ/mol, AG = -3.86 kJ/mol. Therefore, the reaction is spontaneous at the given concentrations) V :
Ba(NO,l(aq) + K,SOlaq) Baso(s) + 2 KNOlaq) Volume Volume Trial 0.10 M Ba(NO)2 (ml) 0.10 M K,SO, (ml) Mass Baso4 (s) Limiting Reagent 50. 20. 0.46 50. 40. 0.92 3 50. 50. 1.15 4 50. 60. 1.15 50. 80. 1.15 • Question 8 Use the data to identify the limiting reagent for each reaction performed. V Trail 1 a. Neither/Both EV Trial 2 b. Baso4 EV Trial 3 C. KSO4 EV Trial 4 d. Ba(NO3)2 EV Trial 5 e. KNO3 Question Help: Message instructor I Calculator Submit Question • Question 9 Why is the amount of precipitate in the Data Table above the same in Trials 3 through 5? Edit Insert Formats B IVX x' A
14:10 x + T / 1. Define the term activation energy 2. Study the graph below of a reaction Time (1) 2.1. Calculate the activation energy for the reaction. A catalyst is now used in the same reaction. 2.2. Define the term catalyst 2.3. How will the activation energy of the catalysed reaction compare to the activation energy of the un-catalysed reaction? Write only GREATER THAN, LESS THAN or SAME 2.4. Hence draw the graph of the un-catalysed reaction and the catalysed reaction on the same set of axes. Indicate clearly which graph is for the un-catalysed and which graph is for the catalysed reaction 3. Study the graph below to answer the questions that follow: Kinetic energy of particle (KE) Which graph (blue or green) shows the reaction in which a catalyst was used? Give a reason for your answer. ■ 4. Learners conducted an investigation on the decomposition of hydrogen peroxide. They used 50cm³ of 0, Imol.dm hydrogen peroxide in both experiments. In one experiment they used CuO as…
I ← = 7 Q Account Balance X A Explanation Z substance 47°F Partly sunny O STATES OF MATTER Predicting the relative boiling points of pure substances A ? B Give to Queensbord X https://www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IBMBkpcnaFu0F7Uj... A Rank the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest boiling point, choose 2 next to the substance with the next highest boiling point, and so on. @ 2 S Schedule Builder X Check # chemical symbol, chemical formula or Lewis structure H :O: HIC-C-0-C-H | H H :O: I 11 H O 3 94 :N=N=0: E $ .. 4 R H I FL I H H I 1 de % 5 T boiling point (Choose one) ✓ (Choose one) ✓ 6 "d+ & Course Documents X G H 7 199 * 8 DE ALEKS - Chisom Ob x ( S 9 JK B||N||M || S ✓ 10 Post Attendee-Zo x → BY (3 ) ▬▬000 3/5 D Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessit W 4) D 1:13 PM 11/3/2022 S P + + [ = @ ♡ prt sc 4 1 0…
Cl₂(g) + 2e Cr₂0 (aq) + 14 H(aq) + 6e¯ 02(g) +4H(aq) + 4e¯ MnO2(s) + 4H(aq) + 2e 103 (aq) +6H(aq) + 5e¯ VO₂ (aq) + 2H(aq) + e¯ Br₂() + 2e NO, (aq) + 4H(aq) + 3e¯ ClO2(g) + e Ag+(aq) + e 2 CT (aq) 1.36 2 Cr3+(aq) + 7 H₂O(1) 1.33 2 H₂O(1) 1.23 Mn2+(aq) + 2 H2O() 1.21 12(aq) + 3H2O(l) VO2+(aq) + H2O(l) 1.20 1.00 2 Br (aq) 1.09 NO(s) + 2 H2O(l) CIO₂(aq) 0.96 0.95 Ag(s) 0.80 0.77 Fe3+(aq) + e Fe2+(aq) A mixture of Fe3+, CIO₂, and Cr₂O,² was made, what reaction would be predicted, if any? a. Fe3+ + Cr2O7²- b. Cr2O + Clo²- c. Fe3+ Clo²- d. No reaction. -> -> Fe²+ + Cr³+. - Cr3+ + ClO2. Fe²+ + ClO2.
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OnCourse Connect Assessment: Chemistry x 4 Copy of spread of islarX E The Spread of Islam- 0 x M Inbox (904) - aarojame X A Classes b oncourseconnect.com/assessment/1651879/5287e2a3-0d0b-e2c0-c15c-3e68a37149b4 TPSS Bookmarks HEMISTRY BENCHMARK TEST 01 EMISTRY I 12-7 (AARON JAMES, ID: 12390724) Some students are modeling covalent bonds with brief descriptions and Lewis dot diagrams, using arrows to show electron movement. Which model best demonstrates covalent bonding in bromine chloride (BrCI)? O: Br- . CI: Cl transfers one e to Br Brj All es from Cl and Br are shared and move freely ©: Br. CI : Br transfers one e to CI Save/Exit 3 4 5 6 8 6. 10 11 ASUS