Astudent wants to prepare a standard iodine solution. Which of the following procedures would not be correct? O a. Make an approximate solution and standardize it against As406. O b. React a known quantity of KIO3 with a small excess of l- and dilute to a known volume. O. Prepare the standard solution directly from a known weight of iodine dissolved in a known volume d. Make an approximate solution and standardize it against pure sample of analyte O e. Make an approximate solution and standardize it against standard Na25203

Astudent wants to prepare a standard iodine solution. Which of the following procedures would not be correct? O a. Make an approximate solution and standardize it against As406. O b. React a known quantity of KIO3 with a small excess of l- and dilute to a known volume. O. Prepare the standard solution directly from a known weight of iodine dissolved in a known volume d. Make an approximate solution and standardize it against pure sample of analyte O e. Make an approximate solution and standardize it against standard Na25203

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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Write the balanced NET ionic equation for the reaction when Cr(NO), and Li CO are mixed in aqueous solution. If no reaction occurs, simply write only NR. Be sure to include the proper phases for all species within the reaction. 2 W S X mand ** #3 E D C 1 80 + $ 04- 3. 4 2 Reset Cr R F ( ) F4 V 3 4 22 % 5 T F5 G ->> Li C 6 5 04 Os ☐6 07 08 09 B s Y - ☐+ H 6 7 8 9 & N tv 7 N 2+ O 44 N (s) (1) (g) (aq) U 3+ 04+ •x H₂O *00 8 J DII FO 1 M NR Delete ( .0 9 K 0 口。 DD F9 @ O < 1 26 ) -O S L | ' P F11 { [ =
5.00 mL of stock solution is diluted to 25.00 mL, producing solution ALPHA. 10.00 mL of solution ALPHA is diluted to 25.00 mL, resulting in solution BETA. 10.00 mlL of solution BETA is then diluted to 25.00 mL, producing solution GAMMA.
When 200.0 mL of a solution containing 0.4522 g of AgNO3 is mixed with 100.0 mL of a solution containing 0.1668 g of K2CRO4, a bright red Ag2CrO4 precipitates. a. Identify the limiting reagent. b. Calculate the mass of the precipitate. c. Calculate the mass of the unreacted AgNO3 or K2CrO4 that remains in solution. 5. A series of sulfate samples is to be analyzed by precipitation as BaSO4. To obtain four significant digits at least 0.1000 g BaSO4 should be obtained. a. If the sample contains at least 10% sulfate by weight, what is the minimum sample mass that can be used? b. If this amount is used and the sample turns out to actually contain 42% sulfate, what mass of precipitate would be obtained?
Ansy G A 20. Answ My C x C Write x C The X C Whe x Ten/akeCovalentActivity.do?ocator nssignnment lake 身 [ [Review Topics] [References] Use the References to access important values if needed for this question. The mass of copper(II) carbonate that is dissolved in 125 mL of a saturated solution is grams. Submit Answer Retry Entire Group No more group attempts remain Previous Next ENG 令口 US End Insert 口し Home F7 F6 F9 F12 出

PRE-LAB QUESTIONS 1. A student dissolves 2.006 g of FeSO4-7 H₂O in 40 mL of sulfuric acid and then dilutes it to 100.00 mL in a volumetric flask as described is Procedure steps 3-7. He then uses a pipet to transfer 10.00 mL of this solution into a flask for titration as in Procedure step 11. What mass of FeSO4-7 H₂O was transferred into the titration flask? (Keep this question in mind as you do your calculations for Pre-Lab Question 2 and for your calculations with your own data.) 2. Your partner has completed three acceptable titrations for standardizing the dilute potassium permanganate solution and he gives you all of the data. The solid standard used was FeSO4-7 H₂O, and it was dissolved and diluted to 100.00 mL. a. Calculate the molarities for the trials (Hint: you are going to need the balanced ionic equation and the formula mass of ferrous sulfate heptahydrate.) Mass of Standard Volume of Blank Volume of Standard Initial Buret Reading Final Buret Reading Volume of Titrant…
Given an original 6.17 M Cu solution (solution 1), and a second solution made by a serial dilution of the original solution by pipeting 5.00 mL into a 500 mL volumetic flask to make a second solution (solution 2). Calculae the log [concentration ratio] for the 2 solutions.
# esc 1 7 ? A H Consider a 0.80 M AI(NO3)3 solution. What would be the concentration of aluminum and nitrate ions in this solution? Type here to search N empt in Progress The aluminum concentration would be i i eTextbook and Media Save for Later 2 W # X alt 3 S D E $ JOI 4 C M. O R LL F fs % 5 V T ⠀ to 40. A G 6 B Y 99+ & Н T 7 hp U N > M and the nitrate concentration would be 4+ * 00 8 J fo M a ( 9 K fio ► 11 ) O Attempts: 0 of 2 used Submit A O 11 44 P ; { alt [ ? = E insert }
coulbonug9 oinihe olni bouogmoOB QU llaa of word Solubility Rules: Water Soluble Compounds EXSube sCHcood) or etosiq 1. Salts of ammonium (NH4*) and Group IA are always soluble. 2. Salts containing nitrate (N03-), acetate (C2H3O2-), or chlorate (CIO3-) ions are always soluble. enoiteo 1ol ooJ 3. Salts of the halides are soluble with the following exception: a. Compound containing Ag*, Hg2*, Pb²* prirdolaw Jon er Es i olnol the exception of: 4. Salts containing the sulfate ion (SO42-) are soluble elgmsx3 a. Compounds containing Ag*, Hg2*, Pb²+, Ca2*, Sr2*, or Ba2+ Water Insoluble Compounds Juloe ent! 1. Salts of the carbonate (CO32-), phosphate (PO43-), chromate (CrO42-), or sulfides (S2-) ions are insoluble with the exception of compound containing group 1A or ammonium cations. 2. Salts containing the hydroxide ion (OH-) are insoluble with the exception of compounds containing group 1A, ammonium cations, or Ba2+. biup Inot luo tneioliteoo belon Soluble means that it dissolves in water…
2. The formula for an ointment is Rx Solid G 1 Liquid D 30 Solid M Ointment base, sufficient to make 100 Calculate quantities of the ingredients for 2 lb (apoth). reducing and enlarging formula question. with solution pls.ty
[Review Topics] [References] Use the References to access important values if needed for this question. Submit Answer Solid potassium hydroxide is slowly added to 150 ml. of a 0.0667 M manganese(II) nitrate solution. The concentration of hydroxide ion required to just initiate precipitation is M hi SI Retry Entire Group 8 more group attempts remaining 6
rn/takeAssignment/takeCovalentActivity.do?locator=assignment-take [Review Topics] [References] Use the References to access important values if needed for this question. What volume of a 0.125 M hydrochloric acid solution is required to neutralize 26.7 mL of a 0.120 M barium hydroxide solution? mL hydrochloric acid Submit Answer Retry Entire Group 8 more group attempts remaining 9:19 PM 11/4/202 ort sc delete home backspace lack 8. 近