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

The following prompt will be used to answer the first six questions. An experiment was performed to separate the components of a binary mixture composed of sucrose (sugar) and sand. The following data was collected in lab during the experiment. Mass of original binary mixture: 20.100 ± 0.001 g Mass of initial filter paper: 21.206 ± 0.001 g Mass of filter paper and isolated sand: 25.226 ± 0.001 g q3 Given the data and information in the prompt, what is the calculated absolute error on the percent of sand in the mixture? Enter the absolute error you calculated in the box below. You do not need to include the % symbol with your answer.

$ F4 An aqueous solution of 2.87 M hydrochloric acid, HCl, has a density of 1.05 g/mL. The percent by mass of HCl in the solution is %. Submit Answer % 5 T G F5 Retry Entire Group 9 more group attempts remaining 6 Cengage Learning | Cengage Technical Support Y H [Review Topics] [References] Use the References to access important values if needed for this question. MacBook Air F6 & 7 gilinent-take F7 8 00 1 DII FB K ( 9 F9 0 L ) O A F10 P Chapter Previous + 11 X Next ☐ Save and Exit OWLY S deles

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

The following prompt will be used to answer the first six questions. An experiment was performed to separate the components of a binary mixture composed of sucrose (sugar) and sand. The following data was collected in lab during the experiment. Mass of original binary mixture: 20.100 ± 0.001 g Mass of initial filter paper: 21.206 ± 0.001 g Mass of filter paper and isolated sand: 25.226 ± 0.001 g q1 Given the data and information in the prompt, what percent of sand is in the original mixture with absolute error? You will submit your answer in three parts. For this question, what value do you get for the percent of sand? You only need to submit the value here since the sig figs and error will be entered in the next two questions. You do not need to include the % symbol with your answer.

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

The following prompt will be used to answer the first six questions. An experiment was performed to separate the components of a binary mixture composed of sucrose (sugar) and sand. The following data was collected in lab during the experiment. Mass of original binary mixture: 20.100 ± 0.001 g Mass of initial filter paper: 21.206 ± 0.001 g Mass of filter paper and isolated sand: 25.226 ± 0.001 g q2 Given the data and information in the prompt, how many sig figs is the percent of sand in the mixture reported with? Your answer should just be an integer value, such as "1."

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

number 9

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

Please can you help me fill in the blanks, with proper calculations thank you.

OWLV2 | Assign x * MindTap - Cen X MindTap - Cen X G amu of ca - Go X b My Questions /ui/evo/index.html?elSBN=9781337790840&id3D299783426&snapshotld%=785765& + x GAGE MINDTAP 8: Chemical Composition Ę AA e. strontium chloride Answer + 31. Calculate the number of moles of the indicated substance present in each of the following samples. a. 21.4 mg of nitrogen dioxide b. 1.56 g of copper(II) nitrate c. 2.47 g of carbon disulfide d. 5.04 g of aluminum sulfate e. 2.99 g of lead(II) chloride f. 62.4 g of calcium carbonate 32. Calculate the number of moles of the indicated substance present in each of the following samples. a. 47.2 g of aluminum oxide 53 F insert pua F12 prt sc home F10 F11 F7 F4 F5

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°%.

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

Please don't provide handwritten solution ....

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

C T X [References) It is sometimes necessary to take powers or roots to solve chemistry problems. eq Take powers and roots as needed on your calculator to complete the following. eq a = 1.335 %3D b = 18.3 c= 4.004 66 %3= Visited =2.02 da %3D req Submit Answer req Leura sidurane unoraaON req Preq Preq 2req 2reg

When asked to record the buret reading shown below, a student wrote down a reading of 15.300 mL. mL 15 16 Indicate if their reading is correct or why it is incorrect. Select one: O Their reading is correct. O The solution level was read incorrectly. O The student did not record to enough decimal places. O The reading has too many decimal places.

Chrome File Edit View History Bookmarks People Tab Window Help * 53% (4) Tue 9:27 AM Q 10 Chem101 G how many liters in a milliiter - x G clo4 - Google Search A app.101edu.co E Apps M Gmail O YouTube O Maps Translate O https://www.carth. Google Chrome isn't your default browser Set as default Submit Question 12 of 46 What volume in milliliters of 0.0200 M Ca(OH)2 is required to neutralize 75.0 mL of 0.0300 M HCI? mL 2 4 C 8- +/- x 100 + 122 étv OCT 27 ... sCBook A 19 80 888 F7 F6 FS F4 SC F3 F2 & %23 2$ 7 8 9 4 5 6 1 2 P Y U Q W R 11 G H J K F

Select all quantities whose values are exact (contains infinite number of significant figures). number of trials. numbers in a mole ratio from a balanced chemical equation. numbers in a molecular formula boiling points and freezing points volumes density formula weight masses numbers in a ratio of a metric conversion (e.g. 1 L / 1000 ml)