Ch3 Documentation (1)

ch-Blackboard... on-CLEARED4 cientific Method? 7... 2 QUESTION 8 The mass of one mole of water is 18.02 g. True O False Click Save and Submit to save and submit. Click Save All Answers 90 #5 16 MAR 1 23 5 245 6 tv 100 7

1

I. Data Record data with units. A. Standardization of KMnO4 1. Mass of beaker/paper + ferrous ammonium sulfate Empty Beaker Beaker and Sample Sample 1 7.40709 8. 4800g Sample 2 7.4364g 9.19498 Sample 3 7.46.324 8.48993 2. Buret readings Initial Reading Final Reading Sample 1 0.00mL 27.00m L Sample 2 21.6 mL 29.5mL Sample 3 33.5mL 29.3mL Mass of Sample 1.0439 0.45269 1.0259 Volume KMnO 27.00mL 27.40 mL 25.8ML

cr.22

A 1 student ID number 3 Mass of Container + Sample 2.70 4 Mass of Container 1.95 48.00 6 % of Sand 7 % of Ammonium Chloride 8 % of Salt 16.00 35.00 ▼ B.. Nesults lable Mass of Entire Sample Mass of Sand Mass of Ammnonium Chloride Mass of Salt Mass of lost Sample % of lost Sample

Microsoft Teams Q Search ... 25 Assignment on matching phrases on classification_ units.docx Close Activity File Home Insert Layout References Review View Help O Tell me what you want to do 'Editing v O Comments A Catch up Chat Calibri (Body) v 11 A В I U Av A A Styles v O Find v Reuse Files O Dictate v E Editor : Designer ... ... MATCHING OF WORDS OR PHRASES Teams 1. Assignments 1. Alloys a) example of a derived unit 2. 2H b) allotropes of oxygen Calendar 3. Mixtures c) two or more different elements bonded 4. Smallest unit of a compound d) centi ... 5. Compound e) a qualitative statement 6. 02 and 03 f) kilo 7. Smallest unit of a compound g) a unit of measurement 8. One thousandth of a unit h) a quantitative statement 9. Teaspoon i) components separable by physical means 10. H2 j) homogeneous mixtures of metals 11. Density k) milli 12. A person is tall I) a molecule of hydrogen 13. one thousand of something m) atom 14. one hundredth n) two atoms of hydrogen 15. Somebody weighs 150…

For each of the following equilibria, write the equilibrium constant expression for Ke Y Part A 2N₂Os (9) 4NO₂(g) + O₂(g) O Ke = O K₂= O K. OK- Submit Part B [NO₂[0₂] N₂O₁ Ke = [NO₂¹0₂] N₂0₂ N₂O₁] NO₂0₁ N₂O, NO₂] O₂ Request Answer 3F2(g) + Cl₂ (9) 2CIFs (9) (CIF₂ CI, P ICE, P Pearson

Match column A (tests) to column B (positive results) and column C (substance) in answering, Use CAPITAL LETTERS for column B and small letters for Column C. Separate each anser with one(1) space not comma(,). If there are more than one answer for each column then write possible answers Ex. 1. B c 2. B c e

2. The following eight structures are all isomers of C6H14O. Each structure corresponds to one of the predicted ¹H NMR spectra pictured on the next two pages of this document. The integral values for each peak are next to that peak. Indicate which structure matches each spectrum by drawing the structures in the boxes along the right side of the pages. Use the letter codes provided to label the chemically equivalent hydrogens on the structures. One example is provided. Xor A 2H 1H <- A 4H -3₂₂ OH B 2H tot 2 PPM PPM -N 2 PPM N- -~ B 12H DE C 2H 2H 1H B 4H 6H ха по мон F 6H B B B w

the mass of a piece of Zn having a volume of 4.56 cm3 is ________g.

Objective 2 _____1____N2 + 3H22___NH3 __2__KCIO3 -> 2_KCI + 3 02 Z NaCl + H2 + 02 -> AgNO3 + AlBr3 + CH4 + F27NaF + C3H8 + H20 K2SO4 MgCl27 AgCl + Mg(NO3)2 02-7_CO2 + KBr + C12 H20 02-> CO2 + Al2(SO4)3 H20

F2 © Macmillan Learning NO₂ Incorrect # 3 20 F3 : 0: || $ 4 F4 078⁰ % 5 BeCL MacBook Air < 60 & 7

Homework AX /6920146#/6920146/16/2 Macmillan Learning Web 2.0 scientific calculator Williston Forge Jero... Assignment Score: Question 17 of 21 > mass: Home Page - myAl... OO TOOLS ×10% 91.5% X + HUAWEI P30 LEICA TRIPLE CAMERA T Synonyms and Ant... Home Page - myAl.. Resources e Ex Give Up? SOAP2DAY Essayaibot: Free Ess... Hint Hydrogen gas holds promise as an alternative fuel to gasoline. Calculate the mass of H₂ gas in a 38.3 L fuel tank at a pressu 2.42 x 104 mmHg and a temperature of 17.4 °C. Paraphrasing Toof Check Answer Attempt 4 C

Show calculatons in a easy way.

Quizze x Launci x Launc x 4 RSJ Te X Q Race a x b Detail: X O Sacra X b My Qu x O racist x G gfnus x с Many x + La unc x O Quiz:V x b Irccd.instructure.com/courses/116812/quizzes/942173/take DJUSD Quick Links E Graphic showing 3. A Home G Images O Fnu Zainab - Count. Jazz Text Set: Resp.. O Davis Senior High S. O Davis Senior High S. IM2 Week 1 Practice G Climate and averag. >> SCC The two molecules shown below have the exact same chemical formula and molar mass (C.H10 and 58.12 g/mol). H H H HH н н-с-нн H-C-C -C-C-H |||| H. H-C- C-H H. H. H. Butane Isobutane Despite this, butane has a slightly higher boiling point than isobutane. Explain why this is so in 2-5 38 sentences. Edit View Insert Format Tools Table 12pt v Paragraph v BI U U Av 2v T?v Sign out INTL 1 6:45

all blanks only have one correct answer  Blank 1 answer choices:  A B C Blank 2 answer choices:  A and B  A and C C and B Blank 3 answer choices:  A B C Blank 4 answer choices:  A B C

00 4- > gage Learning ndex.html?elSBN=9781305657571&id%3D14041518248snapshotld=2790159& Physics 1403 Chemical Equation.. Q POLS 2306 Flashcar... SN Periodic table McNair Teams cengage Pt Periodic Table Pta... G Google MINDTAP Q Search this cou tional Extra Credit) Use the References to access important values if needed for this question. The compound cyclohexanol, C6H120, is a good fuel. It is a liquid at ordinary temperatures. When the liquid is burned, the reaction involved is 2 C6H120(t) + 17 02(g)→12 CO2(g) + 12 H20(g) The standard enthalpy of formation of liquid cyclohexanol at 25 °C is -348.2 kJ mol-1; other relevant enthalpy of formatton values in kJ mol1 are: C6H120(g) = -286.2 ; CO2(g) = -393.5 ; H20(g) = -241.8 (a) Calculate the enthalpy change in the burning of 3.000 mol liquid cyclohexanol to form gaseous products at 25°C. State explicitly whether the reaction is endothermic or exothermic. = oHV (b) Would more or less heat be evolved if gaseous cyclohexanol were burned…

3. A method of analysis yields masses of gold that are low by 0.4 mg. Calculate the percent relative error caused by this result if the mass of gold in the sample is a. 500 mg​​ b. 250 mg c. 60 mg 4. The method described above is to be used for the analysis of ores that assay about 1.2% gold. What minimum sample mass should be taken if the relative error resulting from a 0.4-mg loss is not to exceed a. -0.1% b. -0.8%

Fill in coefficients

Nor 99 Nor 99 Nor Bra Bra Homepa Homep G Am ь Му W KM O 200 В Нус O AP 15. G The G AO Q AP + A testing.illuminateed.com/assessment/60886825dd1f4619088b55f5/6090191b91fa09010e8b4a2c/16?rldbqn=1 E student.uncommonleadershipcharter.org bookmarks * Raze - Unblocked G. RL Welcome to Renais. SIs PowerSchool M Mathway | Precalcu. R #general i Program Archives -. Other bookmarks >> APChemst.UNIT.W31.20-21.USI Signed in as: Anthony Tennant Question 16 II Pause Q Zoom Q Review / V Finish Test Tools - Shown below is a potential energy diagram for the uncatalyzed decomposition of H202 (aq). 2 H,O2 2 Н,О + О, Reaction Progress According to the diagram, is the decomposition reaction exothermic or endothermic? Justify your answer. BI U E E x, x ABC ©2021 Illuminate Education TM, Inc. 回 v 国 Potential Energy

Examples Cl2 / CCI4 a. 33 Study Unit 7 Br2 / CC4 b.

Sample Method A Si wt% Method B Si wt% 1 11.570 11.510 15.380 15.350 17.950 17.900 4. 22.840 22.820 5. 25.110 25.190 6. 27.070 27.030 Determine faale- cale =

STPKsYapxmOBQpqJ9sYHEQf udwLFoPO2ojmMGw/edit s Help Last edit was seconds ago B U A G O O- E E E E E E - E - E E 14.5 3 4 5 6 You are asked to perform an experiment to determine the density of square block below. In order to complete your calculations you will need to (AKS 1b, DOK1). Question options: 1. Use the electronic balance to determine the mass of the block. 2. Use water displacement to determine the volume of the block. bD 1. Use the electronic balance to determine mass. 2. Use ruler to measure the length, width, and height to determine volume. C= 1. Use a pipet to determine the mass of the block. 2. Use water displacement to determine to volume of the block. Pr Au 立

8. a. 10. & H30+ DIBALH 1. 2. H₂O obooks OCH3 Mg Br 2. H₂0

C. 1. 2 equiv PhLi THE EtO. 2. H30* d. NABH4 МеОН

mol stock solution of L. A chemist makes 0.670 L of mercury(I) chloride (Hg,Cl,) working solution by adding distilled water to 0.270 L of a 0.00000789 mercury(1) chloride in water. Calculate the concentration of the chemist's working solution. Round your answer to 3 significant digits. Submit Assignment Continue Privacy Center Accessibility O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use 80 F4 F5 F6 F8 F9 F10 $4 % &

llabus_CHEM 1315 03 - Gener X CO ghtspace 8 + II app.101edu.co 1 Aktiv Chemistry X Determine the molar mass of Fe(NO3)2. Provide an answer to two decimal places. hs Aktiv Learning X + Question 9 of 14 DELL

? 1. 03 2. DMS Br₂, DCM KMnO4, Hot ? X2

CUTE ASS Gwinn X B Homepage-2021S x A Classwork for 2021 x E Danesha Patterson x Commonlit | The S docs.google.com/document/d/1TNETJ72LOKTHX-Ab-VC2FSAnLbFjT2a5pa79lj8 CommonLit | The Scramble for Africa |Free Reading Passages and Literac. izzes - 2021S1 H. commonlit.org anesha Patterson - Copy of Stoichiometry DLD Review 2020 (2).DOCX @ e Edit View Insert Format Tools Add-ons Help Last edit was 2 days ago E A, P Normal text Arlal 100% +BIUA E = E E tE 1E E - E - 4. 11 w .. gi - 2 3. 4 7 **Draw your T-charts on a piece of paper and take a pic to upload*** Use the equation given below for questions 1-3 , - 1co, + 2 H,O How many moles of methane (CH,) are needed to produce 3.7 moles of water (H,O)? 1CH, + 20, 1. 2. How many grams of oxygen (0,) react if the reaction produces 0.9 moles of carbon dioxide (CO,)? How many grams of water (H,O) are produced if 136 grams of methane (CH,) react completely in this reaction? If you start with 136 grams of methane (CH4), what is the theoretical…

Provided are spectra for a compound with molecular formula CgH100 Part A) Give the degrees of unsaturation Part B) Identify the peaks that are associated with specific bonds of the structure and list the corresponding functional groups that the specific bonds belong to. Re- create the example table below that organizes this information. Use the wavenumbers that are already labeled on the spectra. Example table: wavenumber (cm-1) Corresponding Bond Type Corresponding Functional Group C(sp3)-H N-H 2978 3300 Part C) Draw the structure and clearly indicate which hydrogens correspond to which signals in the HNMR spectrum ONLY. The signals are already labeled A-D on the HNMR spectrum. Match the hydrogen labeling (HA, HB, etc.) on your drawn structure to the signal labeling provided. 4300 3320-2872 2951 3006 3003 2001 alkyl amine 1613 1510 1000

M Inbox ( x Precalc X A HOLID X Oluwa X Good ь Chemi X A fake X G spiral G the sar X X Micros X https://papers.xtremepape.rs/CAIE/IGCSE/Chemistry%20(0620)/0620_s05_qp_6.pdf The same mass of zinc was used each time. The volume of acid used was different each time. Use the syringe diagrams to record the volume of hydrogen produced each time in the table. Table of results volume of sulphuric acid/cm volume of syringe diagram hydrogen/cm3 10 20 30 40 50 60 70 80 10 20 30 40 50 60 70 80 15 10 20 30 40 50 60 70 80 20 10 20 30 40 50 60 70 80 25 10 20 30 40 50 60 70 80 30 10 20 30 40 50 60 70 80 10 20 30 40 50 60 70 80 35 40 10 20 30 40 50 60 70 80 ENG 23:09 O Type here to search 27°C US 21/04/2022

a. analytical balanceb. top-loading balancec. serological pipetted. graduated cylindere. burettef. volumetric flaskg. Erlenmeyer flaskh. beaker3. Based on the measurement uncertainty of the above instruments, which instruments would yieldthe lowest percent error?

1. Convert 168 nm3 to ft3.   a.5.93 x 10exp-16 ft^3b.5.93 x 10exp-24 ft^3c.5.22 x10exp22 ft3d.6.00 x10exp-15 ft3