Suppose Megan needs to transfer 5.00 mL of a liquid with high precision and accuracy. Which of the following pieces of glassware should Megan use? Hint: Compare the average percent errors, calculated from the sample data provided, for the buret and pipet trials. 5-mL pipet 25-mL buret 10-mL graduated cylinder O 10-ml pipet
Q: llet leaving the muzzle of a pistol was trave mi/hr Texthook and Media
A:
Q: What is one effective way to calibrate a thermometer?
A:
Q: solution stock Concentration (mL) (mL) (HM) 0.100 100.00 Q2a 0.200 100.00 0.400 100.00 4 0.800…
A: Dilution refers to decreasing the concentration of solute in a solution. This is done by adding…
Q: acia SOluti Select one: -5 а. 1.33 х 10 М -4 b. 3.76 x 10 'M -5 C. 2.66 x 10 M -5 M d. 5.32 x 10
A: Answer - The correct option is (d) 5.32*10^-5
Q: nitroglycerin contain the following amounts of drug 1/25gr, 1/10gr and 1/50gr. Express these…
A: As we know, conservation, 1 gr = 1000 milligrams A) 1/25 gr = 1×1000/25 = 40 milligrams B)…
Q: Give the name of the following lab equipment: Erlenmeyer flask Pipette with pump pH paper Test tube…
A: There are various equipment in lab , knowing there name is essentional to do practical with…
Q: 0.2 to 1.0 mg/ml: For each concentration, a volume of 1.0 mL should be prepared. How will you…
A: The volume of the solution that can be measured with 5-10 microliter pipette and 2-20 microliter…
Q: What is the volume reading of the liquid in the graduated cylinder? * 40 -35 -30 -25 20 36.50 + 0.05…
A: The point where the lower meniscus of liquid is in the graduated cylinder, that indicates the…
Q: At the diagram of the simple distillation apparatus and label the following parts or general areas:…
A: The process in which the separation of components from the mixture of liquid by using the…
Q: 1000 mL of 0.45% NaCl IV for 6.5 hours Drop factor: 60 gtt/mL Flow rate: ________ gtt/min
A: IV flow rate An IV flow rate is a way of describing the rate of an intravenous infusion based on the…
Q: Answer the following questions. _____1. Which of the ff you can use for mixing liquids? a) test tube…
A: 1) The tool which is used for mixing liquids is stirring rod. Therefore, the correct answer is…
Q: 1) determine the glassware that can be used to deliver 4.5mL with an absolute error: a) ≤ 0.15 mL…
A: Answer - Absolute error - The absolute value of the difference between an observed value of a…
Q: why do you calibrate thermometers and pipets?
A: Calibrate means correlate the result with standard instruments reading.
Q: You have a stock solution certified by a manufacturer to contain 175.0 z 0.3 wg SO;"/ml. You would…
A:
Q: Identify the carbon atoms that give rise to each NMR signal.
A: The first molecule is butan-2-ol. There are four peaks obtained in the NMR signaling. Four…
Q: Which of the following is NOT true about constant weighing in the experiment? A A proportionality…
A: Weighing is an important and necessary part of the experiment. If the amount of compound is not…
Q: You need to precisely measure 10.0 mL of liquid. What tool should you use? O 50 mL graduated…
A: There are various apparatus that is used in a chemistry lab while doing an experiment. Few examples…
Q: 3. Gas Chromatography. Answer the following questions based on what you know about the GC in our…
A: The separation of the individual compounds in a mixture can be best accomplished by using the…
Q: Observations: Burette Reading (ml) Normality of a520 solution (N) Volume of NaSy02 soution (m)…
A: The amount of oxygen present in one liter of water in a dissolved state is called dissolved oxygen.…
Q: tudent needs 25.0 mL of 9.60x10 e No. 6 stock solution to work with, how much of the 2.00 mM…
A: Formula used M1V1 = M2V2 where M= Molarity and V= volume
Q: 10 9 d (ppm) 3₂ 2 7 6 5 1.00 4 1.00 3 1.50 1.50 2 0
A: As per the rules, only the first question can be answered.
Q: The volume of the solution that can be measured with 5-10 microliter pipette and 2-20 microliter…
A: Volume of solution that is measured using a 20-200 microliter pipette is 0.02 mL to 0.2 mL. Hence,…
Q: What is the most positive characteristic of a Thermoluminescence dosimeter compared to film badges
A: The thermoluminescence dosimeter (TLD) involves the measurement of the ionizing radiation on…
Q: Place 10 drops of the solution to be analyzed, mix thoroughly and centrifuge. ordinary test tube…
A: A centrifuge is a device that uses centrifugal force to separate materials. It separates the…
Q: how to get from molairty to millliters? in conversion factors
A:
Q: What is the correct burette reading? 25.3 mL 24.15 mL 25.85 mL 24.1 mL
A: In volumetric analysis the burette is used to measure the volume of the solution which is filled in…
Q: a = 4.42° C = 0.1g.mr' | = 10cm - 44.2° +4.42° +0.442° +44.2° ar selectior
A: We will use relation of specific rotation and concentration
Q: etention volumes are 6ml and 7mL, respectively. The dead volume of the column used is 1n
A:
Q: What should you write in your lab notebook if you measure 10 mL of a liquid as accurately as you can…
A: There are different types of glassware which are being used while performing any sort of experiment…
Q: the extraction
A: The question you uploaded is multiple questions. According to the Guidelines, if there are multiple…
Q: How large volume should be measured from a 37wt, 1.185 g/cm^3 density solution?
A:
Q: Chemistry 1) Take 1 mL of a liquid bacterial culture (aka original culture) and mix it with 9 mL of…
A:
Q: There are no different between volumetric and graduated pipettes
A: false there is a difference between between graduated pipette and volumetric pipette graduated…
Q: Calculate range of volumes representing 0.1% tolerance of a 25.00 mL volumetric pipette assuming…
A:
Q: Watchglass Bent glass hook Arrangement for the drying of samples. It shows the recommended way to…
A: false, as the reagent is not covered the lid of the bottle as well as the beaker beak is open…
Q: Active Raw Materials Actual Yield Formulation Dosage Form Packaging Ingredient Potassium 3 kgs.…
A:
Q: The following volumes of 0.000300 M SCN are diluted to 15.00 mL. Determine the concentration of SCN…
A: Given that, the following volume of 0.000300 M SCN- is diluted to 15.0 mL. We have to calculate the…
Q: First you drop a plastic bead that has a density of 0.32 g/cm into the column. What do you expect to…
A: Density is given by the formula d = m/V where d stands…
Q: what is the precision of the 3 graduated cylinders? show solution.
A: Here, volume of cylinder 1 = 100 mL Volume of cylinder 2 = 3mL Volume of cylinder 3 = 0.3 mL
Q: Questions and Problems Q.4 An IV pump delivers the following volume of saline solution over 4 hours.…
A:
Q: Limitation of accuracy of the following instruments: a. analytical balance b. top-loading balance…
A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: Why is the pipette more precise than a burette when measuring?
A: Burettes are larger than a pipette, it has a stopcock at the bottom to control the release of…
Q: 1000 mL of 0.45% NaCl IV for 3 hours Drop factor: 20 gtt/mL Flow rate: ________ gtt/min
A:
Q: Select the piece of equipment that should be used to carry out the specified task in each example.…
A:
Q: S1: Revisit Luisa could you change L "small particles" more accurate Ultrascope views? 52: Examine…
A:
Q: If an uncalibrated 5 (±0.03) mL pipet is used to deliver a total of 15 mL, what is the uncertainty…
A: Given data: The volume of pipette used=5 mL The error in the volume of 5 mL pipette=±0.03 mL The…
Q: The glass pycnometer is an instrument used for measuring weights and densities of liquids in the…
A: The solubility of a substance indicates that the quantity of the substance that passes into the…
Q: If you will measure 90µl of liquid, what pipet calibration should you use appropriately? O 10µl -…
A: A pipette is laboratory glassware used for the accurate measurement of the volume of a liquid.
Q: What is the precision of a 100-mL beaker? " 100ml APPROX 80 100ml 60 40 20 + 10 O + 20 What is the…
A: Precision is the degree of exactness with which the object is measured. Generally, a smaller value…
Q: Stock strength of a drug is 50mg/2ml a client weight is administered 25mg/ kg what volume of drug…
A: Here is your solution
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- 1. Research on the limitation of accuracy of the following instruments: • analytical balance • top-loading balance • serological pipette • graduated cylinder • burette • volumetric flask • Erlenmeyer flask • beaker 2. Define the term, "measurement uncertainty". Among the instruments listed above, which ones have the highest uncertainty? Which ones have the lowest? 3. Based on the measurement uncertainty of the above instruments, which instruments would yield the lowest percent error?1. Calculate the experimental density of a salt solution and the percent error (same as relative error percent) using some or all the data given below. solubility of NaCl salt in water: 0.357 g/mLmass of empty graduated cylinder: 25.19g mass of graduated cylinder + salt solution: 30.47g total volume of salt solution: 4.98 mLtrue density of salt solution: 1.07 g/mLConsider the following SAS data and formula. Volume of sample at $1%: 50.2 ml 51% = 55% 52% = 70% Volume of SAS = [(volume of sample at S1%) (S2% - S1%)] / 100 [(1-(S2% / 100)] Calculate the volume of SAS needed for this experiment given this information.
- A quia.com/quiz/7898892.html?AP_rand%3D1784472953 UIA FAQ About Log in Subscribe now 30-day free trial Home 201208 Assessment for Scoutlier Significant Figures Calculations Go to 1 - Not answered v Go stion 1 of 20 1. When expressed as 7.5x10^4, only the significant figures of are to.be considered. (1 point) O 7.5 7.05 O 7.005 O None of the, above Submit answer Skip for now Save progress or end quizCategorize each as a determinate or an indeterminate error and further classify determinate errors as instrumental, method or personal. a) An unknown sample being weighed is hygroscopic. b) One component of a mixture being analyzed quantitatively by GC reacts with the column packing. c) A radioactive sample being counted repeatedly without any change in condition yields a slightly different count at each trial. d) The tip of the pipet used in the analysis is broken. e) In measuring the same peak heights of a chromatogram, two technician each report different heights.You are trying to determine average experimental value with relative uncertainty for the volume of water measured in a 100 mL volumetric pipet with 0.08 mL precision. You follow the procedure below: 1. Weigh a 200 ml flask with a stopper on the analytical balance. Add 100 mL of distilled water measured carefully with a volumetric pipet and re- weight the flask and stopper with the water. 2. Empty the water from the flask and repeat the above procedure two more times for a total of three measurements for the pipet. You collect the following data in your lab notebook: In Lab Data Analytic Balance: Max weight 400 0.0007 g Volumetric Pipet: 100±0.08 ml Density water 1.000 g/ml Trial 1 2 3 Measured Volume (ml) 100.00 100.00 100.00 What is the average percent error in the volumes measured by the pipet? Notes: Canvas will not accept units, so please just input your value-with the correct sig fig Type your answer... Measured Mass (g) 98.1411 98.2413 98.9825
- E ! G Google Docs: Online Document Editor | Google Workspace Hiranrat_Analysis_CHM235LL DO File Edit View Insert Format Tools Extensions Help A P 100% F1 C Pure A: Pure B: Pure C: Compound 2 F2 Normal text A 146 1 BO с O junk O Crude Fractions. The following table shows a sequence of TLC "lanes" that correspond to fractions collected from a column. After completing the column, a student wants to condense containers while maintaining high purity for each of the components, then what fractions, if any, can be combined to provide # 3 Y 1 2 80 F3 O Times New... Y - 11 + 213 Oo 3 2 0 0 0 0 0 0 0 $ 4 Last edit was 2 minutes ago B IU A UA 45 S Fractions from column 000 F4 6 docs.google.com Hiranrat Analysis_CHM235LL - Google Docs % 5 F5 6 O GOD O O 2 = 2 MacBook Air F6 & 7 6 E 7 F7 Solvent Front Starting Line T 8 DII IE = E 8 9 y DD C F9 peYou measure 35 turtles' weights, and find they have a mean weight of 72 ounces. Assume the population standard deviation is 3.1 ounces. Based on this, construct a 99% confidence interval for the true population mean turtle weight. Give your answers as decimals, to two places ouncesTo determine the organic material in a dried lake bed, the percent carbon by mass is measured at two different locations. To compare the means of the two different locations, it must first be determined whether the standard deviations of the two locations are different. Location 1 standard deviation: 0.050 Location 2 standard deviation: 0.34 What is the calculated ? value for comparing the standard deviations?
- 26) The floor tiles in SE 27 are about 1 square foot and the lab is about 25 tiles wide and about 36 tiles from front to back. When the emergency shower was demonstrated, in 10. seconds the water in the trash can was about 1 foot deep. One student estimated this was 2.5 gallons. Estimate how deep the room will get in inches after a 15 minute shower. List 3 simplifving assumptions you make in this calculation rea L-36 Tile fiDw ill it cost2 The density of gold is 27l An artist plans to apply gold leaf to a painting with an area of 2.32 f? and a thickness of 1.50purse Home n/course.html?courseld%3D15769386&HepID3D169f9f4bdc9f2df8dc5b7368af32865e#10001 e Home troduction to MasteringChemistry 2 of 15 roduction to Numeric Answers Part B When entering large numbers in the answer box, do not use commas. For example, enter 1276400 for the number 1,276,400. Do not enter 1, 276, 400. If you accidentally enter commas, you will receive feedback as a reminder. Answer the following question by typing the numeric answer into the answer box. What is the sum of 9260 and 3240? Express your answer numerically to at least three significant figures. • View Available Hint(s) Eν ΑΣφ sum = Submit Scientific notation You may want to enter 367.000 000 in scientific notatinn as 3 67 x 10° There are twn ways to do this P Pearson Dormicdonc Contact l. Copuriaht 0207 0 Doarcen Education Inc Alrightr rorornd Armr 12:58 hp+ A. Measurement of Liquid Equipment Measured Volume Actual Volume 250 mL Beaker 100 mL 101 mL 125 ml Erlenmeyer flask 100 mL 95 mL Use the following equation and calculate the percent error (% error) in volume а. measurement of the beaker. Show work in space provided. % Error = 100 x (Measured Value -Actual Value) / Actual Value b. Use the following equation and calculate the percent error (% error) in volume measurement of the Erlenmeyer flask. Show work in space provided. % Error = 100 x (Measured Value -Actual Value) / Actual Value