lab 9

An experiment is to be performed to produce 1.7g of copper using aluminum foil and copper (II) chloride as reactants.

O • + 88 www-awu.aleks.com ALEKS - Anniston Stovall b Answered: A major component of gasoline is octane... | bartleby O CHEMICAL REACTIONS Try again. Anniston Solving for a reactant using a chemical equation 0/5 Try Again Your answer is wrong. In addition to checking your math, check that you used the right data and DID NOT round any intermediate calculations. Ammonium phosphate ((NH,), PO.) is an important ingredient in many fertilizers. It can be made by reacting phosphoric acid (H,PO,) with ammonia (NH, alo 18 What mass of ammonium phosphate is produced by the reaction of 1.7 g of ammonia? Ar Be sure your answer has the correct number of significant digits. Explanation Recheck © 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility

My Cour req BQ eq q q eq X Macmilla X nb/ui/evo/index.html?deploymentid=5735112480241329813180832311&elSBN=9781305862883&id=1707786042&snapshot... Back 2/ OT Course M X moles ammonia Submit Answer Sections X References 14. Stoichiometry of Reactions: Gram/Mole: This is group attempt 1 of 10 HOMEW X Use the References to access Important values if needed for this question. According to the following reaction, how many moles of nitrogen monoxide will be formed upon the complete reaction of 27.9 grams of nitrogen gas with excess oxygen gas? nitrogen(g) + oxygen(g) →→→→nitrogen monoxide(g) moles nitrogen monoxide J = □ □ A 6 q MindTap X Autosaved at 5:51 PM MacBook Air Gatoms to According to the following reaction, how many moles of ammonia will be formed upon the complete reaction of 31.2 grams of ammonium chloride? ammonium chloride(aq) ammonla(g) + hydrochloric acid(aq) X Done M Ser Q M

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Help me find the expected mass of calcium carbonate (g)

alculate the approximate volume of the vinegar sample needed for the analyses (Part A.1). Brand of vinegar or unknown no. Colauita tof White Wine Trial 1 1122809 Trial 2 Trial 1 Trial 2 e Guia 112.280g (12.822g 112.796 115 565 lis.9 1. Mass of flask (g) l15.603 2. Mass of flask + vinegar (g) 2.496 3.323 2,743 2,749 3. Mass of vinegar (g) B. Analysis of Vinegar Sample 2mL 7.5 23mL 32.コ 1. Buret reading of NaOH, initial (mL) 5.25mL 13ML amL 2. Buret reading of NaOH, final (mL) 33,3 31.2 1. Volume of NaOH used (mL) 2! mL a7.45 me 20.3 32.2 o i135 • 004 1 Molar concentration of NaOH (mol/L) Oi135 • 00 3 1003 , 063 5. Moles of NaOH added (mol) 6. Moles of CH,COOH in vinegar (mol) 7. Mass of CH,COOH in vinegar (g) 8. Percent by mass of CH,COOH in vinegar (%) 9. Average percent by mass of CH,COOH in vinegar (%) Calculations for Trial 1 of the first vinegar sample on next page. Experiment 10 137

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Calculate the theoretical mass and the percent yield. Please show all work!

What is the balance coefficient

7:27 O O @ X all 25% Submission Name: De Ocampo, Cyzvell N. Date: 11-30-21 Strand and Section: 12STEMA7 Teacher: Mr. Reynante S. Santos Homework 7.1| Stoichiometry in Chemical Reactions Directions: Use the balanced chemical equation to solve the following problems. 4Fe + 302 → 2FE203 1. How many moles of Fe,0z are produced when 7.27 grams of Fe is reacted? 1 mel Fe 2 mol Fe203 0.07 or 0.0650 mol Fe203 7.27 gFe 55.85 g Fe 4 mel Fe 2. How many moles of Fe,0, are produced when 19.0 grams of 0, is reacted? 1 mel02 2 Fe203 19:0 g02---- = 0.40 or 0.395 mol Fe203 32 g02 3 mele2 3. How many moles of 0, are needed to react with 25.9 grams of Fe? 1 met-Fe 3 mol 02 = 0.35 mol 02 25.9 Fe 55.85 g Fe 4 met Fe COMMENTS FILES (1) RUBRIC

www-awn.aleks.com O MEASUREMENT Deducing the unit missing from the solution to a basic qu.. A student sets up and solves the following equation to solve a problem in solution stoichiometry Fill in the missing part of the student's equation. 1 kg (135D 103 1 mL 0.65 kg (0.48 L) 3 10 ? 1 X

1. Develop a detailed separation scheme for the separation and determination of the percent composition of your sample which will be a mixture of NaCl, NH.CL, and sand. You are expected to use the properties of the components listed below and some of the techniques listed in the table in the pre-lab queries (and used in Separations I). Keep in mind that any chemistry student should be able to pick up your scheme, understand it, and use it to complete the separation and calculation of % composition. Place the scheme on a separate sheet of paper. Component Solubility (@25°C) Melting Point Hardness sodium chloride, NaCl 35 g/100 mL water 801°C soft ammonium chloride, NH&Cl 37 g/100 mL water sublimes 350°C soft sand, SIQ2 insoluble 1600°C hard Example of compounds in a container. Naci NH.CI sio2 Exploring the Chemical World, PGCC, 2003 4 RESULTS Show all calculations with units in this space.

arks Window Help A 79% L A docs.google.com A The Roswell Incident G Physics STAAR Review - Google Sli.. G Earth and Space STAAR Review -.. G Chemistry ySTAAR Review O O Present at Slide Arrange Tools Add-ons Help Last edit was seconds ago 田 Background Layout - Theme Transition 3 4 T 5 l 6 7 | 8 9 Label the following parts of the chemical equation below: coefficient, subscript, products, reactants, yields, chemical formula. A. B. A. C. В. C. CaCl, + H,0 Cao + 2HCI D. E. D. E. F. F. The Law of Conservation of Mass states that durina a chemical reaction, mass/matter is not Because of this law, there must be exactly Jon each side of a chemical equation. To check if an equation is balanced ornor, simpty Count the number of atoms of each element on the reactant side of the equation and check to see if there are the same number of atoms of each or the same number and kind of element on the side of the equation. If so, it is balanced. Click to add speaker notes EPIC MacBook Air 80 F3 II ►► F5…

4) During Run 1 (heated to 200°C), do you think that the sodium bicarbonate turned into NaOH, Na20, or Na2CO3? What about during Run 2 (heated to 400°C)? Did they form the same product, or different products? Was this expected or unexpected? Explain briefly.

Determine the mass of chlorine in the original sample as the difference in mass between the anhydrous sample (after drying in the crucible) and the mass of copper. From the mass of chlorine, determine the moles of Cl. J Mass of clean, dry crucible + lid (g): Mass of crucible + lid + copper chloride (g): Mass of crucible + lid + anhydrous copper chloride (g): Record any observations, particularly color change. The copper chloride took 3 minutes and 10 second to turn from a bright blue green color to a burnt brown color. Once the copper chloride turned brown we heated it for 2 additional minutes to make sure everything was properly heated and all the water was removed from the copper chloride. Part III (B) Mass of copper + watch glass (g): Weigh 1 Weigh 2 Weigh 3 29.667 30.751 30.519 46.555 Mass of copper solid (g) 4.657 4.647 4.647

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I need to find the observed mass and expected mass of calcium carbonate and lastly the perecent yield

Video Conferencing, Web Co X Illinois State University - CH X G What is the chemical formula x ð OneClass: Write the balance x ON What Is The Chemical Fo X G chemical formula table - Goc x + saplinglearning.com/ibiscms/mod/flcn/view.php?id=12024863 A Apps M Gmail YouTube Maps Translate GE News Reef – Class activi... sapling plue che My Print Center D Reef 2 Activity - Get l-PA... bartholomae.pdf Math help >> A Sapling Learning Ch 7 HW Aalyiah Washburn macmillan learning Sapling Learning > Illinois State University - CHE 110 - Fall20 - BOESDORFER > Activities and Due Dates > Ch 7 HW Assignment Score: Ex Give Up? O Hint 88.1% Resources Check Answer Attempt 3 N но What is the chemical formula for the limiting reactant in the reaction shown? chemical formula: H, + 2NO → N, + H,O Write the balanced chemical equation for the reaction, using lowest whole-number coefficients. © 2011-2020 Sapling Learning, Inc. |help about us careers privacy policy terms of use contact us !!!

Answer the three following questions by using the chart for reference. Please type instead of showing the work handwritten, I’m bad at reading hand writing.

For the sentence below answer the following questions: Q1) Change the sentence into a chemical equation Q2) What are the reactants and products? "1 mole of solid Zn and 2 moles of aqueous AGNO3 react to produce 1 mole of aqueous Zn(NO3)2 and 2 moles of solid Ag." Format BIU Add a File Record Audio. Record Video 58 F

Help with the CHEM Lab report please! It is about Volumetric Analysis  There is also a Burn trail please make sure for that!

5) 3) 2) Percentage Composition Worksheet Give the % composition of all elements in these compounds. Show all work! 1) ammonium sulfite % N % H sodium bromide aluminum acetate % Al % C 4) copper (II) hydroxide % S % O magnesium carbonate % H % O % Na % Br M_ For chemistry help, visit http://www.chemfiesta.com % Cu % O % H % Mg % C % O O Ma 9.8 ebinayo muiaestog Llobiriqaoriq muinul (Ot 2 (8 etellua (III) lexoin Ⓒ2000 Cavalcade Publishing - All Rights Reserved

How many g of Aluminum are needed to react completely with 16.41 gram of Mn;04, according to the chemical equation below? 3 Mn304 + 8 Al --> 9 Mn + 4 Al2O3 Put answer in box in regular, non-scientific, notation with 2 places past the decimal

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