Lab Report Melting Points of Organic Acids Template 1

The mass of 4.375 x 1016 molecules of compound with the molecular formula C3H9N is ______ g. Report your answer in scientific notation and to 3 s.f. For example, if your answer was 1.076 x 10-10 you would report it as 1.08e-10.

Please help with the percent stearic acid by mass%

I need help with #6 and 7 please. The unknown acid type; H3A, and it's molar mass is 192.140

pH HCI vs. ml NaOH 12 11 10 9 6 5 4 2 1 0 1 2 3 4 5 6 78 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 ml NaOH pH HCI

What is the average ratio in this chart? Please show me the calculation too!    Sample 1 2 3 Calculations for sample 1 Mass of aluminum dish   1.24g 1.26g 1.24g - Mass of aluminum dish + Epsom salt   1.70g 1.94g 1.80g -   Epsom salt, original (hydrated) mass 0.46g 0.68g 0.56g 1.70g – 1.24g = 0.46g Mass of aluminum dish + Epsom salt after heating 1.42g 1.62g 1.61g   Epsom salt, heated (dehydrated) mass 0.18g 0.36g 0.37g 1.42g- 1.24g = 0.18g Mass of water 0.28g 0.32g 0.19g 0.46g – 0.18g = 0.28g Moles of magnesium sulfate 0.0015mol 0.0030mol 0.0031mol 0.18g x (1mol/120.37g)= 0.0015mol Moles of water 0.016mol 0.018mol 0.011mol 0.28g x (1mol/18.02g) = 0.016mol Ratio of moles water: moles of magnesium sulfate 32:3 18:3 11:3.1 0.016 : 0.0015= 32:3 Average Ratio

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

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.

aur X Macmilla X 2/ Course X 50 ~ T Sections X Submit Answer evo/index.html?deploymentid=5735112480241329813180832311&elSBN=9781305862883&id=1707786042&snapshot! References lancing Molecular Equations: This is group attempt 2 of 10 HOMEW X Use the References to access Important values if needed for this question. When the following molecular equation is balanced using the smallest possible Integer coefficients, the values of these coefficients are: Na (s) + H₂0 (1). NaOH (aq) + H₂ (8) ≡く □ □ A MindTap ㅁ Autosaved at 5:51 PM MacBook Air Gatoms to When the following molecular equation is balanced using the smallest possible Integer coefficients, the values of these coeffi Br₂(g) + Cl₂(g) →BrCl(g) X Dom

Complete the table and answer the following questions.

there is more than one correct answer

M|OM|O G fil app.101edu.co Maps ouTube F1 80 F3 E D C $ 4 c|o X G d Question 23 of 31 The molecules shown below are Aa F4 R F P₂ % 5 V A F5 T G В B 8 6 MacBook Air F6 B Y H 7 F7 с N 2|GT|G B * 8 J 기 A) Identical molecules B) Stereoisomers C) Constitutional isomers D) Isotopes E) Neither identical nor a type of isomer Done F8 B M W ( 9 G 17 CS UO N E E K F9 O H L F10 U P B > F11 Gra الہا + 11 ☐ ? X command option F13 1

I am struggling with how to set this up using this conversion format.

1. Determine the maximum mass of aspirin that can be made from the amount of salicylic acid you used. mass (salicylic acid) = 2.004 grams %3D 2. Determine the maximum mass of aspirin that can be made from the volume of acetic anhydride acid you used. Hint: you need the density of acetic anhydride. volume (acetic anhydride) = 4.872 mL 3. Indicate which of the above amounts represents the theoretical yield. 4. Find the actual amount of aspirin produced from the following data: mass aspirin and crucible = 3.216 g 0.942 g mass empty crucible = 5. Calculate the percent yield of your aspirin.

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

x 人 3. Fill in the missing information HCN, NaCN A. 3 D. E. H. P H₂O' B. W F. Chaug Br H. NOCHON H20 H* 左 NC. OH (Ph)3P Nech MeOH,HCI OH G. Ph DELL DOW

fonj.acid అ,రవల Formula ha tormula HS 1.8.10.* HSO 0.012 HAO, 4.5164 Complete the table below. Bc Sure cach O7 Your ainouer entries has the Correct numbcr oA Signiticant digits. You may assume the tmparatore is 25°%.

O H 1. NaBH4 2. H₂O

History stry Bookmarks X O8 https://app.101edu.co FEB 13 Tools Window 80 Aktiv Chemistry F3 Balance the following chemical equation (if necessary): Si₂H3(s) + O₂(g) → SiO₂(g) + H₂O(g) 1 $ + Reset Help SIO₂ O F4 X 04 03- 3 0₂ 03 ) + F5 Question 40 of 47 0²- 4 0 ↑ H₂O < 0- 5 05 □+ ALL F6 6 0 1 MacBook Air 2 2+ & 7 Si₂H3 07 (s) (1) (g) (aq) 4 F7 8 9 0 08 09 Do • x H₂O 4+ ♫ A * 0₂ FB Delete tv w O O DD F9

5.) Correctly match the terms listed on the left with the substances listed on the right. More than one term may be used for each substance. A. element B. compound C. heterogeneous Mg Fe mixed with sand saltwater D. mixture water E. homogeneous F. pure substance G. Solution M9SO. 41 8 3. 5 CO

2 Fe + Oz →2 FeO 1. The numbers in red boxes are... A. subscripts B. coefficients C. reactants D. products 2. The chemicals in the purple box are... A. subscripts B. coefficients C. reactants D. products

Please don't provide handwritten solution ....

Please check my work. Analyze the data for the sample to get the Empirical formula of CxHy Given data for the sample compound with no oxygen: Mass of sample (g): 5.99 Mass of carbon dioxide collected (g): 19.25 Mass of water collected (g): 6.57

Could you please do the calculations for Mol NaOH and and Mol HCl. Use correct significant figures and explain plz.

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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