Tennessee State University Chemistry Worksheet

** I only have 1 Hour** 20 Questions

1. Le Chatelier’s Principle is about changes to chemical equilibrium. Using your datasheet from you virtual lab. Explain in your own words what is happening and why for each of the following reactions:

Don't use plagiarized sources. Get Your Custom Essay on
Tennessee State University Chemistry Worksheet
Just from $13/Page
Order Essay

1. When acid is added to the cobalt chloride solution. 2. When water is added to previous mixture. 3. When acid and then silver nitrate is to the cobalt chloride solution.

Match the following reactions to the reaction type.

Question 2 options:12345Decomposition12345Precipitation12345Neutralization12345Reduction12345Oxidation1.CO2(g) + H2(g) “> CO(g) + H2O(g)2.Mg(NO3)2(aq) + Na2CO3(aq) “>MgCO3(s) + NaNO3(aq)3.2HgO(s)→2Hg(l)+O2(g)4.2 Fe(s) + 3 O2(g) “> 2 Fe2O3(s)5.3Ca(OH)2 +2H3PO4 →6H2O + Ca3(PO4)23. 2AlBr3 + 3K2SO4 → 6KBr + Al2(SO4)3Using this balanced equation: Answer the following parts of this question. Must show your work to receive full or partial credit. The initial masses: AlBr3 = 7.145 g and K2SO4 = 6.839 gPeriodic Table: https://sciencenotes.org/wp-content/uploads/2018/08/NoNamePeriodicTable118.png1. Calculate all the molar masses. 2. Identify the limiting reagent when focused on producing Al2(SO4)3 . 3. Calculate the theoretical yield for Al2(SO4)3 . 4. Calculate the percent yield if 3.952 g of Al2(SO4)3 was recovered. 4. Balance the following equation:Enter a coefficients into each box. 1st coefficient corresponds with the 1st box. 2nd to 2nd box, etc. ___ As + ___NaOH → ___Na3AsO3 + ___H25. Balance the following equation:Enter a coefficients into each box. 1st coefficient corresponds with the 1st box. 2nd to 2nd box, etc. ___C7H6O2 + ___O2 → ___CO2 + ___H2O6. Write 5 different laboratory safety rules/practices that you must follow when performing an experiment. (2 points each – 10 points total)7. How many grams of NaOH are there in 700 mL of a 0.225 M NaOH solution?https://sciencenotes.org/wp-content/uploads/2018/08/NoNamePeriodicTable118.png8. In a laboratory titration, 25.0 mL of NaOH is completely neutralized by 18.4 mL of 0.750 M HCl. What is the concentration of the NaOH solution?9. Calculate the average deviation, in milliliters, for the following volumes.45.1 mL, 0.0459 L, 44.8 cm^3, 4.56 cLA.1.6 mL B.15.3 mL C.70.9 mL D.0.4 mL10. In a laboratory titration, 25.0 mL of oxalic acid solution is completely oxidized by 0.500 M potassium permanganate. The initial volume of the buret is shown the picture where x = 13 mL. The final volume of potassium permanganate used is 35.0 mL. What is the concentration of the oxalic acid solution?2KMnO4 + 5(COOH)2 + 3H2SO4 → 2MnSO4 + 10CO2 + 8H2O + K2SO411. 25 g of a compound is added to 500 mL of water if the freezing point of the resulting solution is 0.57 °C what is the molecular weight of the compound assume no molecular disassociation upon dissolution Kf equals 1.36 °C/mA.238 g/mol B.60 g/mol C.119 g/mol D.90 g/mol12. Using the chemical equation below: 0.175 M HCl is used to neutralize 0.150 Ba(OH)2. If 15 mL of base is used, what would be the volume acid need to neutralize the base?2HCl(aq)+Ba(OH)2(aq)→BaCl2(aq)+2H2O(l)A.12.8 mL B.25.7 mL C.15 mL D.19.2 mL13. Calculate the % percent recovery the compounds. The initial mass of the mixture of compound A and B is 5.73 g. The compounds are separate using fractional crystallization. The mass of compound A was 3.48 g. The mass of compound B was 1.58 gA.113% B.25.5% C.88.3% D.61.2%14. Which of the following types of intermolecular forces provides the most accurate explanation for why noble gases can liquify?A. Hydrogen Bonding B. Dipole-dipole interactions C.Ion-dipole interactions D.Dispersion Forces15. What is the percent mass of chromium in K2Cr2O7?A.40.2% B.38.1% C.26.6% D.35.4%16. An unknown mixture is separated into compounds A and B. The % mass of compound A in the mixture is 61.78%. The mass of compound A and filter paper is 2.946 g. The mass of the filter paper is 0.371 g. Assuming 100% recovery of compounds, what is the initial mass of the mixture.A.5.369 g B.4.768 g C.4.168 g D.4.368 g17.Above is the standard curve for the experiment. The following solution is prepared with 4.3 mL of 0.002 M KSCN, 10.5 mL of 0.002 M ferric nitrate and 6.2 mL of nitric acid. The absorbance is 0.53. Calculate the Kc value for the solution.A.290.3 B.256.9 C.320.02 D.283.218. Given the following. What is the rate law for the reaction A + 2B → C[A] [B] Rate (M/s)0.1 0.02 0.010.2 0.02 0.040.1 0.01 0.005A. Rate= k [A] B. Rate= k [A] [B]^2 C. Rate= k [A]^2[B] D. Rate= k [B] E. Rate= k [A][B]19. Bonus: Watch this short video (5 points). Link are to the same video on different sites.https://www.instagram.com/p/B-7pgdkjTkR/?utm_source=ig_web_copy_link or https://www.facebook.com/644199405752818/videos/516326362395321/ The iodine clock reactions in the initial beakers are changing quickly almost immediately one after the other. The last 3 beakers the reaction takes much longer. Explain what why this change in time for the last 3 beakers possibly happened and how it relates to the hydrogen peroxide concentration.20. Bonus: Show your work to receive full or partial credit. (10 pts possible)It’s January in Nashville and your local weather station just informed you that the temperature outside is 15.4°F. You estimate the amount of ice on your driveway to be approximately 30 kg. What is the minimum amount of sodium chloride in kilograms (kg) needed to lower the freezing point of the water so that the ice melts?

Place your order
(550 words)

Approximate price: $22

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
The price is based on these factors:
Academic level
Number of pages
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more
Live Chat+1(978) 822-0999EmailWhatsApp

Order your essay today and save 20% with the discount code LEMONADE