M: Table 1: Standardization Data Trial 1 Trial 2 Mass of KHP O145504 0.05ML 04536 12.3 mL Initial burette reading Final burette reading 12.8 a6.omL Volume of base used 12.75 13.2 mL Data Analysis: KH Cg Hg Da GHOIAR MASS 20412) 1. Calculate the molarity of base for each trial. You must use dimensional analysis - show all unit conversions (hint: start with grams of KHP used). Review the balanced equation for KHP and NaOH you wrote in Expt 11 part 1.

M: Table 1: Standardization Data Trial 1 Trial 2 Mass of KHP O145504 0.05ML 04536 12.3 mL Initial burette reading Final burette reading 12.8 a6.omL Volume of base used 12.75 13.2 mL Data Analysis: KH Cg Hg Da GHOIAR MASS 20412) 1. Calculate the molarity of base for each trial. You must use dimensional analysis - show all unit conversions (hint: start with grams of KHP used). Review the balanced equation for KHP and NaOH you wrote in Expt 11 part 1.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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2) As an example of precision and accuracy of data, suppose the % carbon in a single compound has been measured thrce separate times by 2 different students. The theoretical % carbon is 21.34%. Student 1: trial 1:26.11%, trial 2: 26.24% trial 3: 25.92 %, Avg - 26.09 Student 2: trial 1: 20.35%. trial 2: 22.64 % trial 3: 19.79 %. Avg = 20.93 a) Which student had the more precise data and how can you tell? b) Which student had the more accurate data and how can you tell? 3a) Calculate the % error of Student 1 data in problem 2 above. Show all work below. WATCH SIG FIGS
POSSIBLE POIN Calculate the molarity of a solution that contains 80. grams of NaOH in 2.0 L of solution. Na = 23 g/mol O = 16 g/mol H = 1 g/mol 1 2 3 nisd schoology.com/common-assessment-delivery/start/483704 =onresume&submissionld=501882343 hp -> Ce @ #3 %24 & 3 4. 6. 8. 9. W e r y f h k dl
NaOH Concentration (M): 0.09669M Trial 1: Inital Volume of NaOH: 0.55mL Final Volume of NaOH: 28.25 mL Trail 2: Intial Volume of NaOH: 18.1 mL Final Volume of NaOH: 46.1 mL Concentration of HCl Solution Subtract the initial buret reading from the end point reading. Convert the readings to liters by dividing by 1000. Solve this equation for the concentration of HCl: (CHCl) (0.01000 liters ) = (CNaOH) (volume of NaOH in liters). CNaOH is the normality of the NaOH you recorded from the bottle. Average the two HCl concentrations.
A set of five solutions are prepared by delivering 10 mL of unknown sample and increasing volumes of standard (0, 5, 10, 15, and 20 mL) into 50-mL volumetric flasks. Analytical reagents are then added and the flasks are diluted to volume. The x-intercept of the best-fit line is -5.63 mM. What is the concentration of the unknown? w 2
HP TrueVision HD 4 Texas Workfor Mộc Homework × W. College Physic mical App AN Careers eagleonline.hccs.edu/courses/188795/assignments/3601808 valnabie diler reD 4 dl 10.1Tam Constants | Periodic Table Part O Complete the fourth row. Complete the following table by calculating the missing entries and indicating whether the solution is acidic or basic. Express your answer using two decimal places. Acidic or [H+] [OH-] pH pOH basic? 7.4x10-3 ΑΣφ 3.3x10-10 M pH 8.25 5.73 Is to fa ho II 10 insert
You are preparing a 100.0 mL standard solution needed for titration analysis. The NaOH (40 g/mol) pellets are measured to be 0.5341 g in a balance with acceptable uncertainty of +0.001 g. Mass of the pellets is recorded after taring the container. The pellets are put in a beaker and added with 50 ml distilled water measured by a graduated cylinder. The solution is then quantitatively transferred to a 100-mL volumetric flask with uncertainty of ±0.08 mL and diluted to a 100-mL mark. What is the concentration (M) of the solution and estimate its uncertainty by propagation? Assumption: There is no uncertainty in molar mass. Express your answer as C+/- u M.
Saved Normal BIIIU fxl Ix Actual mass used in solution prep (g) Volume solution prepared Measured conductivity (uS/cm) Substance 0.1 g Naci 0.1003 100 mL 1149 0.1 g Nal 0.10 100 ml 419 Calculate the mass of Nal that would be necessary to yield the same conductivity as the NaCl solution. Clearly show these calculations in your lab notebook. Saved T BII U X X + fr Normal
2 Analytical Chemi... -> Analytical Chemistry Problems Q1/ What is the weight, in milligrams, of 0.250 mmol Fe2O3 (ferric oxide), F.wt (159.7 mg/mmol)? Q2/ A solution is prepared by dissolving 1.26 g AGNO3 in a 250-mL volumetric flask and diluting to volume. Calculate the molarity of the silver nitrate solution. How many millimoles AGNO3 were dissolved? F.wt AGNO3 169.9 g/mol Q3/ How many grams per milliliter of NaCl are contained in a 0.250 M solution? F.wt NaCI 58.4 mg/mmol Q4/ Calculate the concentration of potassium ion in grams per liter after mixing 100mL of 0.250 M KCI and 200mL of 0.100 M K2SO4. (atomic weight K 39.1 mg/mmol) Q5/ How many milliliters of concentrated sulfuric acid, 94.0%, density 1.831 g/cm3, are required to prepare 1 liter of a 0.100 M solution? F.wt H2SO4 98.1 g/mol Q6/ You wish to prepare 500mL of a 0.100 M K2Cr2O7 solution from a 0.250 M solution. What volume of the 0.250 M solution must be diluted to 500 mL? Q7/ The concentration of zinc ion in blood serum…
Please help me find weight percentage of the unknown solution, Thank you in advance Data attached below: Data of unknown NaCl solution (by weight) weight of weighing bottle and solution: 34.91g weight of weighing bottle: 23.91g weight of the solution: 11.00g Initial buret reading 33.28ml Final buret reading: 43.26ml The volume of the solution; 9.98 ml The density of solution: 1.10 Weight % of unknow solution: ?
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Anna Divi, a young and ambitious researcher, is planning to put up her very own research laboratory. However, she does not have the funds for this to happen. She then approached Alan Read, CEO of a well-known funding agency, to help her pursue her dream laboratory. Before Alan considers Anna's proposal, Anna must perform an experiment on determining the melting point of solutions. She nust have an accurate result with a percent error not greater than 3%. The data on the experiment is given below. Help Anna achieve her goals by performing the necessary calculations below. Table 1. Data on the determnination of the melting point of the solution. Parameters Values Theoretical freezing point of solvent, °C 65.8 Freezing point depression constant (k 2.49 of solvent, °C m1 mass of solute, g 0.250 mass of solvent, g 2.100 molar mass of solute, g mol1 148.21
Mass of CaCO3= 0.3185 g Trial VCaCO3 1 25.00 mL 2 25.00 mL 3 25.00 mL Vi (mL) 0.00 0.10 0.50 V EDTA Vf V used (mL) 32.75 32.15 32.83 Average M EDTA MEDTA