iouer пShown below is a solution of 0.80 M of HF (aq) in a graduated cylinder at 292 K.2.0mL1.0mL0mLUsing the correct level of precision, select the volume of the sample.1 mL01.00 mL1.0 mL1.000 mL

Least count is the smallest measurement that can be made using a given measuring instrument. Each…

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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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A student would like to prepare a 0.010 M solution from a 1.0 M stock solution with minimal error. The student can choose to do a one-step dilution that uses a 10 mL transfer pipet and a 1000 mL volumetric flask or a two-step dilution using a 50 mL pipet and a 1000 mL volumetric flask for the first dilution, and a 100 mL pipet and a 500 mL volumetric flask for the second dilution. Which method has the smallest overall relative uncertainty and what is the value? **Use table 4.2 on page 70 in your textbook for tolerances of the glassware. O One-step dilution; 0.0020 Two-step dilution; 0.0020 O Two-step dilution; 0.0014 O One-step dilution; 0.0010
01edu.co ring Ce... F4 $ 4 R F The molarity (M) of an aqueous solution containing 0.065 mol of sucrose in 85 mL of solution is F5 % 5 F6 T G A) 1.85 6 B) 0.765 ^ C) 7.65 D) 1307 F7 Y H F8 & Question 8 of 9 7 (1L=1000 mL) F9 * 8 DELL I F10 K 9 F11 O L F12 2 P : PrtScr [ + Insert = Delete Backspace Pgl
72.1 g C2 H6O in 2.18 L of solution Express your answer using three significant figures. ? M molarity = Submit Request Answer Part C 12.59 mg KI in 110.4 mL of solution Express your answer using four significant figures. |V ΑΣφ molarity = Submit Request Answer Provide Feedback
I had a 6.00 M NaOH solution and I diluted it to a 50mL solution of 0.300 M NaOh solution by adding 2.5 mL of NaOH and filled it up to the mark using DI water. I also had to make a 50mL of a 0.300 M NaCl solution by adding 0.8g of NaCl. I then pipet 20mL of the 0.300M NaOH solution into a small beaker and pipet 10.0mL of 0.300 M NaCl into it. What is the molarity/concentration of NaOH in the new solution I created by dilution? I need to use the formula M1V1=M2V2
Q6. The following set of millimolarities were obtained when standardizing a solution: 10.67, 10.71, 10.66, and 10.45. One value appears suspect. Using Q test determine if it can be ascribed to accidental error, at the 90% confidence level.
A 870. mL solution was made by mixing 419. mL of hexane, which has a density of 0.66 g/mL, and 469. mL of toluene, which has a density of 0.87 g/mL. Calculate the volume percent of hexane in this solution. Be sure your answer has the right number of significant digits. [ %(v/v) x10
A 147. ml. solution was made by mixing 98.0 mL of cyclohexane, which has a density of 0.78 g/ml., and 47.7 ml. of toluene, which has a density of 0.87 g/mL.. Calculate the volume percent of cyclohexane in this solution. Be sure your answer has the right number of significant digits. %(w/v) X 5
.. A solution of NaOH has a oxalic acid (MW 126.0) titer of 9.45 mg/mL. Calculate the normality of the NaOH solution. (Oxalic acid furnishes two hydrogen ions) Calculate the fllowing titors in ma/ml.
A 1mL solution contains a 20X diluted sample. How do you make a spike solution that contains 100uL of the standard you will compare to the sample and 900uL of the diluting liquid? If you have a spike solution, do you still need to make a range of standard solutions? Please show detail, thank you.
I am not sure on how to complete this problem and need some help. Thank you!
A 25mL volumetric pipet is used to deliver a sample of the stock solution marked “0.6000M X2SO4” into a 100mL volumetric flask. Distilled water is added to the flask until it is about 3/4thfull, the solution is mixed well, then more water is added to fill it up to the calibration mark, then it is mixed again. Calculate the concentration of X+ion in the dilute solution made above.
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iouer п Shown below is a solution of 0.80 M of HF (aq) in a graduated cylinder at 292 K. 2.0mL 1.0mL 0mL Using the correct level of precision, select the volume of the sample. 1 mL 01.00 mL 1.0 mL 1.000 mL