Calculate the amount of granulated agar needed to make 1.5% agar medium and enter it into Table 1. See Appendix E, How to Calculate Percent Weight to Volume for Lab Solutions (posted to Canvas). Calculate the volumes of liquid dye stock solutions and water you will need for the first plate and enter them into Table 1. This is the plate you will pipet three different color dyes to compare the different sized molecules. See Appendix F, How to Calculate Dilute Solutions from a Concentrated Stock (posted to Canvas). Table 1. Solution Calculations (% w/v or mM concentrations) for Plate 1 Material MW g mol-1 Stock Conc. Final Conc. (% Solid Stock (g) Liquid Water Stock (mL) (mM) or mM) (mL) Final Volume (mL) Granulated 1.5% 100 Agar Phenol Red 354.38 Orange G 452.38 Bromophenol 669.96 ཅཅ8 25 10 1 40 10 10 10 1 1 Blue

Calculate the amount of granulated agar needed to make 1.5% agar medium and enter it into Table 1. See Appendix E, How to Calculate Percent Weight to Volume for Lab Solutions (posted to Canvas). Calculate the volumes of liquid dye stock solutions and water you will need for the first plate and enter them into Table 1. This is the plate you will pipet three different color dyes to compare the different sized molecules. See Appendix F, How to Calculate Dilute Solutions from a Concentrated Stock (posted to Canvas). Table 1. Solution Calculations (% w/v or mM concentrations) for Plate 1 Material MW g mol-1 Stock Conc. Final Conc. (% Solid Stock (g) Liquid Water Stock (mL) (mM) or mM) (mL) Final Volume (mL) Granulated 1.5% 100 Agar Phenol Red 354.38 Orange G 452.38 Bromophenol 669.96 ཅཅ8 25 10 1 40 10 10 10 1 1 Blue

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter15: Solutions

Section: Chapter Questions

Problem 12CR: Without consulting your textbook, list and explain the main postulates of the kinetic molecular...

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87. What volume of 0.151 N NaOH is required to neutralize 24.2 mL of 0.125 N H2SO4? What volume of 0.151 N NaOH is required to neutralize 24.2 n1L of 0.125 M H2SO4?
Without consulting your textbook, list and explain the main postulates of the kinetic molecular theory for gases. How do these postulates help us account for the following bulk properties of a gas: the pressure of the gas and why the pressure of the gas increases with increased temperature; the fact that a gas tills its entire container; and the fact that the volume of a given sample of gas increases as its temperature is increased.
You want to determine the concentration of NaCl in a water. In preliminary analysis, it appears to be saline water with a NaCl content of approximately 4%. Should you dilute the sample if your titrant has a concentration of 0.1 M and you want to spend 25 mL of sample? Solution: You must dilute approximately ten times, taking 10 mL of sample and making up to 100 mL. In this way, 17.20 mL of titrant will be spent.
1. A 0.10 M HNO3 solution will be prepared from concentrated HNO3. a. Using the method outlined in Experiment 5, determine the concentration of a stock bottle of concentrated nitric acid. [density = 1.42 g/mL; 70% by mass HNO3] b. Calculate the volume of concentrated NO3 needed to prepare 500 mL of a 0.10 %3D M solution.
POSTLABORATORY ASSIGNMENT 1. An oleic acid, C17H33COOH (282 g/mol), solution is added to water in a watchglass until a monolayer forms. Assume that there are no spaces between molecules in the monolayer and that each oleic acid molecule occupies an area of 0.25 nm². If the concentration of the oleic acid solution is 0.00012 g/mL, what is the experimental value of Avogadro's number? dropper pipet calibration number of drops of oleic acid in the monolayer diameter of monolayer OMA 30+20 od os pulgad Im od of ingranit yd souls mesto bonstantial = || || || 00.1 arestusslom (0) N = = = Jorna ode 65 drops/mL 16 drops 14.5 cm dirua orli unalools) mano lo zemoristalls d A(otho) wall
Write your complete solutions on yellow paper, round your answers to the appropriate number of significant figures, and box the final answer. The deadline for submission is at the end of the class. Note: You do not need to write your solutions for the items that can be derived from your calculators. 1. Three students (Saerom, Hayoung, and Jiwon) are asked to determine the ppm Ca in a drinking water sample by titration with EDTA. Each student performed five trials for the sample. The results in ppm Ca are the following: Saerom Hayoung Jiwon a. Get the mean, SD, and % RSD of each student's results. b. If the true value is 35 ppm, calculate the relative error of each student's results. c. Comment on the precision and accuracy of each student's results. The maximum % RSD and the relative error set by the lab is 5.0%. d. Use the following table to summarize your answers. Mean SD %RSD Relative Error Comment 31, 32, 33, 33, 32 35, 34, 34, 35, 34 35, 38, 33, 35, 37 Saerom Mean SD 95% CI…
1. When potassium dichromate (K2CRO4) is added to a solution containing 0.500 g silver nitrate (AGNO3), solid silver chromate (Ag2CrO4) is formed. ( Note: Be sure to write down the balanced chemical equation.) a) Determine the theoretical yield of the silver chromate precipitate. b) If 0.455 g of silver chromate is obtained, calculate the percentage yield.
Refer to the solubility curve below to answer this question. How many grams of NH4Cl will dissolve in 1500 g of water at 90 °C? Grams of solute per 100 g H₂O 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 K Blank 1: NH37 8 NaNO3 KCIO3. KNO3 NHẠC KCI Naci -Ce₂(SO4)3 0 0 10 20 30 40 50 60 70 80 90 100 Temperature (°C)
Part C You need to prepare a 2.40 M solution of sodium hydroxide (molar mass of sodium hydroxide = 40.00 g/mol ), but you only have a 10 mL graduated cylinder and a 25 mL beaker. Complete the following sentences regarding the concentration of the prepared solution. Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer. • View Available Hint(s) Reset Help greater than 10.0 mL 1. In order to prepare 10.0 mL (0.0100 L) solution of 2.40 M sodium hydroxide, a mass of would be required. exactly 10.0 mL exactly 2.40 M 2. When the solute and a total of 10.0 mL of water are both added into the beaker and stirred until 0.024 g the solute dissolves, the solution volume will be greater than 2.40 M 3. Based on that, the concentration of the prepared solution will be less than 2.40 M. less than 10.0 mL 0.960 g P Pearson
1. A silver nitrate solution contains 5.63 g of primary standard AgNO3 (MM = 169.87 g/mol) in 1.00 L. What volume of this solution will be needed to react with 0.0109 g of NaCl (MM = 58.44 g/mol)? 2. A silver nitrate solution contains 6.28 g of primary standard AgNO3 (MM = 169.87 g/mol) in 1.00 L. What volume of this solution will be needed to react with 0.0219 g of of Na2CrO4 (MM = 161.97 g/mol)?
Convert the experimental glucose concentration (provided in the table below) from mM (millimolar) to g/100 mL. Hints & Tips Take the 1/100 dilution factor into consideration Molarity will open the doors for you to get to grams. Once at M assume 1L of solution. (Hint: this will help you when converting from M to moles) You will also need to calculate the molar mass of glucose which has the formula C6H12O6 There are 5 steps in total Task 1: Write a step-by-step guide with key words for the Chem 2 students on how to do these calculations. You can use diagrams, a table or just type the steps out. Ensure the steps are clearly written and easy to follow. Drink # Glucose Concentration in mM 1 2.340 mM 2 0.288 mM 3 3.500 mM 4 0.136 mM 5 1.673 mM For each step show the corresponding calculation including equations where appropriate. You can choose any of the experimental results from the 5 drinks below to show your calculations. ONLY…
Part Two: Types of Solutions (saturated, unsaturated, supersaturated) On a solubility curve, the lines indicate the concentration of a amount of solute that will dissolve at that specific temperature. solution - the maximum Values on the graph could be dissolved at that temperature. (below, above, on) a curve represent unsaturated solutions - more solute Use the solubility curve on the first page to label the following solutions as saturated or unsaturated. If unsaturated, write how much more solute can be dissolved in the solution. Solution If unsaturated: How Saturated (S) or Unsaturated (Un)? much more solute can dissolve in the solution? a solution that contains 70g of NaNO3 at 30°C a solution that contains 50g of NH.Cl at 50°C a solution that contains 20g of KCIO3 at 50°C a solution that contains 70g of KI at 0°C