lab 9

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

A chemist adds 0.30 L of a 1.7M nickel(II) chloride (NiCl,) solution to a reaction flask. Calculate the mass in grams of nickel(II) chloride the chemist has added to the flask. Round your answer to 2 significant digits. x10 Submit Assignr Continue 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessi IMG-6097.jpg IMG-6096.jpg IMG-6095.jpg IMG-6099.jpg IMG-6098.jpg MacBook Air 80 F10 F11 F7 F8 F9 F5 F6 F3 F4 F1 $ % & 3 4 5 6 7 8 * 00

Image uploaded solution is not allowed please dear expert

1. Moles of NaHCO3 and NaCl:2. Mole Ratio:3. How does your experimental ratio compare to the theoretical? If they are different,explain what might have caused the difference.4. Calculate the percent error.

Basic Analytical Chemistry

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

Please assist

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

Table 7.1(data) Mass of crucible and lid 33.059   Mass of crucible, lid, and hydrate sample before heating 33.533   Mass of crucible, lid and hydrate sample after heating 33.460

alibri (Body) 12 A A Aa v AaBbCcDc AaBbCcDc AaBbC AABBCCC AaB AABBCCD IU abe x, x A ab T Normal T No Spac. Heading 1 Heading 2 Title Subtitle Font Paragraph Styles 3 6 IZICIt iniED 10 11 12 13 I 14 I- 15 16 . Chemical Equation Write a balanced equation that describes each of the following chemical reaction. 1. Acetylene gas, C2H2, burns in air forming gaseous carbon dioxide and, CO2, and water. Answer: 2C2H2 + 502 → 4CO2 + 2H20 (double displacement/Combustion reaction) 2. MnO2 + KOH + O2 → H20 + K2MNO4 3. FeCl2 + Cl2 → FeCl3 English (United States) Accessibility: Good to go a ENG REDMI NOTE 10 PRO | JHANG 01/06/2022 15: 12

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.

Payal

composition of water in a hydrate, we need to look at our equation. compare it to your experimental values you just obtained in lab. To calculate the percent In this exercise, we are going to calculate the percent composition of water in a hydrate and percent (%) composition = of water mass of water х 100 mass of entire hydrate For LINO3 3H2O (lithium nitrate trihydrate) we have to calculate the mass of each element. Nelice the three in front of the water will give us a total of six hydrogens and three oxygens. Li: 1x 6.94 g/mol N: 1x 14.01 g/mol H: 6x 1.01 g/mol О: 3х 16.00 g/mol O: 3x 16.00 g/mol 54.06 g/mol go l00 68.95 g/mol percent (%) composition = of water 3 H20 х 100 LINO3 · 3H20 percent (%) composition = of water 54.06 g/mol х 100 (68.95 g/mol + 54.06 g/mol) percent (%) composition of water in LINO3 • 3 H20 = 43.9 % 1. Calculate the percent composition of water in the following hydrates: (show all work) ZnSO, 7H20 M9SO 7H20 BaCl2 2H20 There are additional questions on the…

ARUCATION NSCI 113 Chemistry for Engineers Limiting and Excess Reactants Assignment General Direction: 1. On a separate sheet, answer the following item below. 2. Used the format GRESFA (Given, Required, Equation, Solution, and Final Answer). 3. In submission, using cam scanner or take a photo of your output. 4. Clear, neat, and portrait scanning of your answers will be part of the grading. By process, 560 g of CH1206 (180.2-) is broken down with 1200 g of O2 (16-) mol CH1206 O2 co2 H,0 a. Which of the two reactants is the limiting reagent? b. Calculate the mass of CO, formed. MATION

Please don' t provide handwrtiin solution....

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.

LWR # 1 Apply Stoichiometry A student performed an experiment to find the amount of sodium carbonate, (Na₂CO₂) that is produced from the decomposition of baking soda, NaHCO, by heating. Decomposition of baking soda: 2NaHCO,> Na₂CO, + CO₂ + H₂O The following data were collected. Complete the data table. Mass of empty evaporating dish 24.353 grams Mass of evaporating dish and baking 27.868 grams soda 26.885 grams Mass of evaporating dish and sodium carbonate Mass of baking soda 84.007 g/mol Mass of sodium carbonate (experimental) 105.9888 g/mol Molar mass of baking soda 84.007 g/mol Molar mass of sodium carbonate 105.9888 g/mol 1.678 grams > Theoretical (calculated) mass of sodium carbonate 09314 g/mol Calculate percent error of the analysis (1105.9888-09314) +100/.09314 = 9.8% 1 = Atomic mass: Na = 23.0g; H=1.0 g; C=12.0g; O=16.0g % error = (Experimental-Calculated) x 100/ Calculated

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

Potassium nitrate was synthesized in an experiment using 10 mL of nitric acid and excess potassium hydroxide. The mass data obtained from the experiment is shown in Table 1 below. Given that the percentage yield of potassium nitrate was 88.3 %, calculate the concentration (% m/v) of the nitric acid used in the experiment. Table 1: Mass data for the synthesis of potassium nitrate from nitric acid and potassium hydroxide Mass of clock glass and crystallized potassium nitrate/ g 45.55 Mass of empty clock glass/ g 39.18

Potassium nitrate was synthesized in an experiment using 10 mL of nitric acid and excess potassium hydroxide. The mass data obtained from the experiment is shown in Table 1 below. Given that the percentage yield of potassium nitrate was 88.3 %, calculate the concentration (% m/v) of the nitric acid used in the experiment.                                            Table 1: Mass data for the synthesis of potassium nitrate from nitric acid and potassium hydroxide Mass of clock glass and crystallized potassium nitrate/ g 45.55 Mass of empty clock glass/ g 39.18 I got this question for my exam and didn't know if I did correctly but if I did wrong I would have learn from my mistake

Photo is only attached as reference.- What does the mass of the reactants and products tell us about the Law of Conservation of Mass? Why? - Briefly state the law of conservation of mass. (1-2 sentences is enough)Thank you!