QUESTION 18 n the experiment "Density of a Solution", why was it necessary to calibrate the volumetric pipet? O To identify the liquid in it To remove potential contamiņants O To increase the accuracy of its volume O To determine the mass of the liquid it dispensės
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Q: QUESTION 18. In the experiment "Density of a Solution", why was it necessary to calibrate the…
A: last option to dispense the exact amount of liquid is correct option
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Q: QUESTION 18 In the experiment "Density of a Solution", why was it necessary to calibrate the…
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Q: PLEASE SHOW WORK AND EXPLAIN.
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- 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$ 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 delesO No effect QUESTION 18. In the experiment "Density of a Solution", why was it necessary to calibrate the volumetric pipet? To identify the liquid in it To remove potential contaminants To increase the accuracy of its volume To determine the mass of the liquid it dispenses QUESTION 19 Name the laboratory equipment. Click Save and Submit to save ind submit. Click Save All Ansuers to save all ansicers
- 29.0 mL of a 2.50 M H₂SO4 solution from a(n) 11.2 M H₂SO4 solution Express your answer with the appropriate units. 66.8 μA 4 ml 920 ? Submit Previous Answers Request Answer * Incorrect; Try AgainWhen you walked in to Mrs. Bateast's lab today, you noticed that your partner group had a 0.05432 ml mixture sample of sand and water in a beaker. When your group began the lab to separate the mixture in to different weight boats, you thought it would be very difficult to remove the sand. As a result, you added another 5.2ml of water to assist with removing it. a. Which separate method should be used to quickly and effectively separate the two substances. Explain why you chose this method. b. Determine the number of significant figures in your original sample. c. How much total mixture did you have after adding additional water. (provide the equation, calculator answer and the final answer rounding to the correct number of significant figures.AaBbCcDc AaBbCcDc AaBbCC AABBCCC A aB 前。 1 Normal 1 No Spac... Heading 1 Heading 2 Title Paragraph A sample of potassium bicarbonate (KHCO3) was reacted with HCl to produce KCl. The following Styles 7 data was collected. Mass of beaker 28.43 g Mass of beaker + KHCO3 36.95 g Volume of HC1 12.0 mL Concentration of HCl 9.0 M Mass of beaker +residue (KCI) 33.82 g Calculate the following quantities. Show calculations where requested: Mass of KHCO3 Mass of residue Mass of 1 mol of KHCO3 No. of moles of KHCO3 used Show calculations below No. of moles of HCl added Show calculations below: Assuming KHCO3 is the limiting reactant, how many grams of KCl can be formed? Show calculations below: Assuming HCl is the limitingʻreactant, how many grams of KCl can be formed? Show calculations below: Which reactant is limiting? Which reactant is excess? Actual yield of KCI: Theoretical yield of KCl: Percent yield of KCl: W
- Determine which of the following steps show correct technique when using a 250.00 mL volumetric pipette. > A student pippettes using their index finger. A student did not wear gloves to pipette their solution. A student used their mouth to blow out the pipette. A student pippettes using their thumb. A student pipetted directly from a volumetric flask. 1. Correct 2. IncorrectCalculate the volume in milliliters of a 2.18M sodium chloride solution that contains 375. mmol of sodium chloride (NaCI) . Round your answer to 3 significant digits. OmlL ||mL x10 Submit Assignment Continue 2022 McGraw Hill LLC. AIl Rights Reserved. Terms of Use Privacy Center I Accessibility IMG-4492.jpg IMG-4482.jpg IMG-4481.jpg IMG-4480.jpg IMG-4493.jpg MacBook Air DD 80 F7 F8 F9 F10 F11 F1 F2 F3 F4 F5 F6 @ # % & * ( 2 3 4 5 6 7 8 %24Calculate the density in g/mL of 0.362 L of solution weighing 248 grams. 7.23 24.8 0.685
- General, Organic and Biochemistry - Laboratory Manual 3. a) How would you record the following volume measurement on a burette shown in the picture using rules of significant figures? 07 . mL V= b) If the burette was used to dispense a certain amount of solution, and the new volume reading is shown in the picture below, what volume of the solution was dispensed? Use rules of significantfigures and showyour work! 9FD 11 AHUA 12 /0 09/W0 1 #11 mL Vdispensed 1 Show work: DNH UO 61 10 me3) A vial containing 200 mg hydrocortisone sodium succinate powder for injection is to be reconstituted to produce 4 mL of injection.The displacement volume of hydrocortisone sodium succinate is 0.05 mL/100 mg.What quantity of Water for Injections, BP that should be added to the powder?units – mlDuring dilution process, what do you do if you add a bit too much solvent when filling the volumetric flask to the mark? O Calculate the equivalent amount of salt and add that to the solution O Remove the excess content of the flask until the volume matches the calibration mark O Start over, the solution cannot be saved OUse a distillation unit to evaporate the excess solvent