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Calculate the moles and mass of acetylsalicylic acid in each tablet (molar mass = 180.16 g/mol).
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- Part A If 2.0 x 10-4 moles of S20 in 50 mL solution is consumed in 3 minutes and 17 seconds, what is the rate of consumption of S20 ? Express the rate in mol per liter-second to two significant digits. M 2.128 10 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining < Return to Assignment Provide FeedbackThis question has multiple parts. Work all the parts to get the most points. Use the References to access important values if needed for this question. 18 16 14 12 10 8 6 4. Choose the correct relationship for the plot shown above. O a direct proportion O an inverse proportion O linear with a positive slope and nonzero y-intercept O linear with a negative slope and nonzero y-intercept Submit Cengage Learning | Cengage Technical Support MacBook Air DII E5 F6 EZ FA F9 F10 F 2$ & * ) 4 5 6 7 8 * 00$ 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
- 2. Choose an object around you (anything you like). Make two qualitative observations about the object you chose. 3. Give examples of types of quantitative observations. The meltine Pnt of crustalline Sulfur is l15-1I Celsisand 35.9jrams of telde Saltithe chenical neime of which issoedium chloride disralves in of lovgrams of water at 20celcius. 4. Make one quantitative observation about the object you chose earlier. 5. Give an example of a hypothesis you made in real life recently. Remember the definition of hypothesis from our earlier section of work -a hypothesis is a tentative explanation that can be tested, and is usually based on previous observations. For example: My hypothesis is that my kids sleep better when I take them on a walk of at least 15 minutes long each day. reishe takes in more suugar 6. Design an experiment to test YOUR hypothesis. Here's my experiment: This week, I'm going to take my kids on a walk every day for 7 days, and track their sleep. Then, I'm NOT going to…Hi! I am having difficulty finishing and finding out the rest of tables in excel. I am trying to find the Calcium Carbonate in an Eggshell. I have put up the excel sheet I have done with the given data already inputed, I just need to find out the rest. Thank you so much!McGraw Hil ALEKS CHEMISTRY-Gener... esc E ! 1 MEASUREMENT AND MATTER Adding or subtracting and multiplying or dividing measurements Explanation -1 gml1 Q A 1 A chemistry student must write down in her lab notebook the concentration of a solution of sodium thiosulfate. The concentration of a solution equals the mass of what's dissolved divided by the total volume of the solution. Here's how the student prepared the solution: • The label on the graduated cylinder says: empty weight: 1.500 g • She put some solid sodium thiosulfate into the graduated cylinder and weighed it. With the sodium thiosulfate added, the cylinder weighed 96.6 g. She added water to the graduated cylinder and dissolved the sodium thiosulfate completely. Then she read the total volume of the solution from the markings on the graduated cylinder. The total volume of the solution was 97.7 mL. What concentration should the student write down in her lab notebook? Be sure your answer has the correct number of significant…
- mol stock solution of L. A chemist makes 0.670 L of mercury(I) chloride (Hg,Cl,) working solution by adding distilled water to 0.270 L of a 0.00000789 mercury(1) chloride in water. Calculate the concentration of the chemist's working solution. Round your answer to 3 significant digits. Submit Assignment Continue Privacy Center Accessibility O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use 80 F4 F5 F6 F8 F9 F10 $4 % &Chemistry Five modern United States pennies are measured three times each on a balance, and their measured masses are compared to the actual mass of a penny (2.5000 grams according to US Mint). a. When looking at the precision of the balance, which would be more ideal: one relative standard deviation value for fifteen measurements or five relative standard deviation values for the five pennies? 2. What is the relationship between solubility and density? Why is it important to consider the solubility of substances when determining their densities? 3. Why is it ideal to use only 10 mL or greater of a liquid when calculating for density? 4. Assume you have stacked 5 liquids on top of one another in a column. Each liquid (3 mL) has varying densities. What will happen to the densities of the liquids if the volume of each increased? 5. What does percent error indicate: quality of instrument (refer to the balance and penny example in Problem #1) or quality of penny? Why?View Assessment ← C Pri Ter Acc X 13 minutes remaining Question 1 blackboard.matc.edu/ultra/courses/_525703_1/outline/assessment/_1556 Blank 1 X Blank 2 Blank 3 All answers must have the correct units. Watch your significant digits! A 55.0 g sample of sugar (C12H22011) is dissolved in 170. g of water. a. What is the mass of the solute? Blank 1 g b. What is the mass of the solvent? Blank 2 g c. What is the mass of the solution? Blank 3 g d. What is the percentage by mass of this solution? (% m/m) Blank 4 % Blank 4 Add your answer Add your answer Add your answer Add your answer Courses Last saved 12:59:40 PM X Questions Filter (6) ▼ + K First < Previous Next
- A chemist measured the concentration of a solution three times and obtained the following results (in mol/L): 0.0147, 0.0146, 0.0148. Do the results appear precise, accurate, or neither? Explain. avenge =.0147 (pdimus.co 120 Doy Jine What information would you need for the results to be both precise and accurate? If the true value is 0.0149, calculate the percent error.Part B Before investigating the scene, the technician must dilute the luminol solution to a concentration of 8.00x102 M. The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of luminol are present in 2.00 L of the diluted spray? Express your answer with the appropriate units. • View Available Hint(s) Tempjetes Symbols undo redo Teset keyboard shortcuts Help Value Units moles of luminol =drc%3D0&gi=24758088ctgl=18dnb 06 What is the molarity of a solution prepared by dissolving 213.6 grams of Fe(OH)3 in enough water to produce a total volume of 1.5 L? Round your answer to 1 decimal place. Your Answer: Answer units D Add attachments to support your work