Loading...

Messages

Proposals

Stuck in your homework and missing deadline? Get urgent help in $10/Page with 24 hours deadline

Get Urgent Writing Help In Your Essays, Assignments, Homeworks, Dissertation, Thesis Or Coursework & Achieve A+ Grades.

Privacy Guaranteed - 100% Plagiarism Free Writing - Free Turnitin Report - Professional And Experienced Writers - 24/7 Online Support

Zinc and hydrochloric acid lab

06/01/2021 Client: saad24vbs Deadline: 7 Days

IDENTIFICATION OF GASES


EXPERIMENT 1:


DATA TABLE 1: GAS OBSERVATIONS


Step / Reaction


Observations


Reaction between Zinc and Hydrochloric Acid


Bubbled quickly and started to rise to the top. Gas is being released in the form of bubbles.


Hydrogen gas and Flame


A chemical reaction occurred where the gas was released quickly. With the smoldering toothpick you heard a popping sound. The flame went out.


Reactions that occurs when magnesium is in contact with hydrogen peroxide


Fizzing and bubbling and water is being displaced into hydrogen gas. The precipitate in the test tube turned a brownish color.


Oxygen gas and Smoldering Toothpick


Cloud of water vapor and gas. The toothpick glowed and was reignited.


Gas Mixture and Flame


The tooth pick glowed followed by a popping sound and then the flame went out.


Write a balanced chemical equation describing the reaction of zinc and hydrochloric acid.


Zn + 2HCI ZnCI2 + H2 (gas)


The gas produced is hydrogen, it burns with a popping sound. The decomposition of hydrogen peroxide produces oxygen gas.


What gas was produced by the reaction of zinc and hydrochloric acid? How did this gas behave in the presence of fire?


The gas that was produced by the reaction of zinc and hydrochloric acid was Hydrogen gas and zinc chloride. In the presence of fire, hydrogen explodes with a popping sound. The popping sound put out the flame.


What gas was produced by the decomposition of hydrogen peroxide? What happened when the smoldering toothpick cam in contact with the gas?


The decomposition of hydrogen peroxide produced Oxygen. When the smoldering toothpick came into contact with oxygen, it started burning again and slowly went out.


Compare the behavior of the mixture of gases with each solitary gas in the presence of flame.


Oxygen mixed with hydrogen; when exposed to a flame made a popping sound. A mixture of gases produce less amount of heat and solitary gases produce a high amount of heat.


Outline the procedures you would use to determine whether a gas sample was composed of hydrogen or oxygen.


A smoldering tooth pick was put in an inverted test tube of hydrogen; Hydrogen burns with a squeaky pop; if the tooth pick relights, the gas would be oxygen.


EXPERIMENT 2:


DATA TABLE 2: CARBON DIOXIDE REACTION OBSERVATIONS


Step/ Reaction


Observations


Ca(OH)2 + CO2


Fizzing occurred and the lime water turned cloudy with precipitate.


CO2 + BTB


The blue color solution (BTB) change to yellow.


CO2 + Flame


CO2 gas put out the flame on the toothpick quickly with a little release of smoke.


Ca(OH)2 + Antacid + water (gas)


Slight bubbling


Antacid + water(gas) + Smoldering Toothpick


Flame on the toothpick went out quickly releasing a little bit of smoke.


Ca(OH)2 + Breath


Lime water turned cloudy with a precipitate.


The chemical equation for the reaction of baking soda (sodium bicarbonate, NaHCo3) and vinegar (acetic acid, CH3COOH) may be written as two steps. Fill in the missing information for the chemical equation:


Step 1: _________ + __________ - CH3 COONa (aq) + H2CO3 (l)


Step 2: H2CO3 (l) - H2O (l) + ___________


Step 1: CH3COOH (aq) + NaHCO3 (s) CH3COONa (aq) + H2CO3 (l)


Step 2: H2CO3 (aq) - H2O (l) + CO2 (g)


If you add them both together :


CH3COOH(aq) + Na2CO3(s) —> CH3COONa(aq) + CO2(g) + H2O(l)


Write a chemical equation for the reaction of CO2 and limewater (Ca(OH)2). Write a physical description of the products formed.


Ca(OH)2 (aq) + CO2 (g) - CaCO3 (s) + H2O (l)


The reaction took place when a fizzing of CO2 gas released. The limewater turned cloudy with a precipitate. The calcium carbonate was produced as a salt which turned the solution into cloudy precipitate, which shows that CaCO3 is not soluble in water.


C) When the Bromothymol blue (BTB) was exposed to the CO2 gas, what color was the solution? Did the BTB indicate the presence of an acid or base? Explain your answer.


When the BTB was exposed to the CO2 gas, BTB is blue and becomes yellow. The color change indicates the presence of an acidic substance. The acid is H2CO3 carbonic acid.


CO2 + H2O —-> H2CO3


D) Did the reaction between the antacid tablet and the tap water produce hydrogen, oxygen or carbon dioxide gas? Support your answer with results from your work in both Exercise 1 and Exercise 2.


The reaction between the antacid tablet and the tap water produces carbon dioxide gas. The flame test in Exercise 1 with hydrogen peroxide produced a popping sound the flame reignited. In the presence of CO2 gas, the flame was put out on the toothpick quickly. In the chemical reaction that occurs between the antacid tablet and water produces carbon dioxide which was shown by the bubbles that put out the flame completely.


E) Based on your observation of the reaction that occurred when limewater was exposed to your breath, what gas did you exhale? Support your answer with your observations in Data Table 2.


When air is exhaled in limewater, it turns slightly cloudy ; which shows carbon dioxide gas; which is what we exhale when we breath out. The precipitate did not dissolve in the solution. CO2 reacted with Ca(OH)2 to produce CaCO3.

Homework is Completed By:

Writer Writer Name Amount Client Comments & Rating
Instant Homework Helper

ONLINE

Instant Homework Helper

$36

She helped me in last minute in a very reasonable price. She is a lifesaver, I got A+ grade in my homework, I will surely hire her again for my next assignments, Thumbs Up!

Order & Get This Solution Within 3 Hours in $25/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 3 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 6 Hours in $20/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 6 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 12 Hours in $15/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 12 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

6 writers have sent their proposals to do this homework:

Helping Hand
University Coursework Help
Top Essay Tutor
Writer Writer Name Offer Chat
Helping Hand

ONLINE

Helping Hand

I am an Academic writer with 10 years of experience. As an Academic writer, my aim is to generate unique content without Plagiarism as per the client’s requirements.

$100 Chat With Writer
University Coursework Help

ONLINE

University Coursework Help

Hi dear, I am ready to do your homework in a reasonable price.

$102 Chat With Writer
Top Essay Tutor

ONLINE

Top Essay Tutor

I have more than 12 years of experience in managing online classes, exams, and quizzes on different websites like; Connect, McGraw-Hill, and Blackboard. I always provide a guarantee to my clients for their grades.

$105 Chat With Writer

Let our expert academic writers to help you in achieving a+ grades in your homework, assignment, quiz or exam.

Similar Homework Questions

Cap coast netball association - American express bank 2.0 case study solution - Perception checking statement examples - Dennis notices that jackets are on sale for $99. in this case money is functioning as a - Discussion Board Unit 2 PC - The filtration membrane includes all except ________. - Data domain file system cleaning - Sathya sai speaks search engine - Community teaching work plan proposal - 2 assignments of reading response - Module 2 - Term Paper Sub-Topic - The beach a river of sand - Ruck march packing list - Forest development the indian way - Www youtube com watch v iyhcn0jf46u - Health talk topics in community health nursing - Introduction to sociology seagull tenth edition ebook - Aluminium tubular busbar current rating - HW2 - Humanities reflection paper - Module two wellness plan answers - South devon college moodle leap login - Add criteria to this query - Casio fx 9750gii differentiate - The 280 kg 6 m wide rectangular gate shown - What is erab in lte - Skin hair nails assessment nursing - Adjectives to describe cake - Best buy income statement and balance sheet - Good palliative geriatric practice algorithm - Education as a social institution - Self-plagiarism - Sps pv design and install - YouTube video - Why do humans make synthetic resources - Social Work - Penn foster personal narrative essay examples - Full adder ic 7483 datasheet - Unintentional rat poison victim crossword clue - Psych - Two 10 cm diameter charged disks face each other - Nqt induction assessment form example - PS490 Assignment 8 Research Proposal - 10 Pieces of Research - Performance lawn equipment case study solution - 1.14 prewriting graphic organizer - Convergent tools and techniques marketing - Intro to physics formula sheet - Sissinghurst castle national trust - How to find 3 unknowns with 3 equations - Included in the article on pages 96-98 is a questionnaire with items marked A-R. The questionnaire asks you to look at an item mark which of the following numbers apply to it : - Could the sinking of the titanic been prevented - Rent the runway case study answers - Week 6 - Easy way to do stoichiometry - Discussion Board - Lucas puz5a battery equivalent - 7zip drag and drop - 7:2 - English-Jigsaw Instructions - A Doll's House, Acts 2 and 3 - Leggos italian style sausage agnolotti - Content_Art - Ol meaning on multimeter - Entertainment speech examples pdf - Countries with autocracy based governments have - Discussion Board - Heavenly chocolates website transactions - Safety symbols worksheet pdf - Fahrenheit 451 character listc - International area code 212 - A study with questionable sponsorship or motives - Zillow stock class c - Forked river brewing company case study - Under god should not be in the pledge of allegiance - Business partnership letter sample - Fire services levy act - Jazzy belle in the bible - Legal environment - Spelling connections grade 8 unit 8 answers - +91/*//*9928097710 lost lovE back solution Astrologer in IndORE , lucknOw - Harvey norman knox westfield - Family life merit badge workbook - The near in blood the nearer bloody - Self reflection strengths and weaknesses essay - Derivative of sin 2x using first principle - Protein synthesis model project - Sundial y plan wiring diagram - Bus admittance matrix in power systems - Assignment Assistance & Academic Support - Charles perrault sleeping beauty analysis - Texas constitution weaknesses - St andrews school of modern languages - Rfid forecasts players and opportunities 2014 2024 - Our common bond australian citizenship - English - 400 word discussion - Deep learning yann lecun nature - Urban remedy macro bowl costco - Week 3 Midweek Assignment - Can you double jump in draughts