Using the average molarity of the NaOH solution determined from your results in part A, calculate the molarity and percent by mass of the acetic acid in your vinegar sample and report their average values.  H2C2O4•2H2O(s) + 2NaOH (aq)= Na2C2O4 + 4H2O(l)   part A  Mass of oxalic acid analyzed (g)- trial 1- 0.302   trial 2- 0.305 initial buret reading of NaOH (mL)- trial 1-0.31   trial 2- 23.42 final buret reading of NaOH (mL) trial 1- 23.42   trial 2 -46.73 Part B volume of vinegar analyzed (mL), trial 1- 5.00 , trial 2- 5.00  initial buret reading of NaOH (mL), trial 1 -0.00,  trial 2 - 22.73 final buret reading of NaOH (mL) trial 1- 22.73, trial 2- 45.50    There is no molarity of oxalic acid that was used during the experiment given

A reaction is made up in the following way: 16 mL of 4.3 M acetone + 16 mL of 1.1 M HCI + 16 mL of 0.0058 M I2 + 14 mL of water. What was the inital concentration of I2 in the reaction mixture? Express your answer as a decimal number (no exponents). Please include proper (abbreviated) units.

AaBbCcDdF 三 斗 T AaBbCcDdE AaBbCcAaBbCcDdE Aa v Normal Strong Emphasis Heading 1 v A v 5. What is the maximum amount of water that can be obtained from 22.05 g of copper and 750.00 mL of 1.00 M of nitric acid according to the below reaction? 3 Cu(s) + 8 HNO3(aq) 3 Cu(NO3)2(aq) + 2 NO(g) + 4 H20(t) 6. If 25.00 mL of 2.11x10-8 M Na2SO4 is mixed with 20.00 mL of 1.22x10-8 M Ba(NO3)2, how many grams of precipitate (which is?) can be formed? 7. In all the limiting reactant questions, how much of the excess reactant is left over? Give answer in mass or volume as appropriate. English United States O Focus MacBook Air 吕口 F3 000 FA F2 * ES > F6 F7 FB F9 F10 $4 & 4 6. 7 8 5 III III %#3 |II lili

1-1. The raw water supply for a community contains 18 mg/L total particulate matter. It is to be treated by addition of 60 mg alum (Al2(SO4)3-14H;O) per liter of water treated. Essentially, all the added alum precipi- tates represented by the following reaction: Al2(SO4)3 · 14H20 → 2 Al(OH);(s) + 3So,- + 6H* + 8H2O For a total flow of 7500 m/d, compute the daily alum requirement, the total concentration of suspended sol- ids in the water following alum addition, and the daily load of particulate solids requiring disposal (including both those initially present and those formed during treatment).

3-6 3 SOLUTIONS AND NAME SOLUTION CONCENTRATIONS 1415 Section Pre-Lab Assignment Experiment objectives A, B, and C require you to devise procedures for preparing a saturated aqueous solution of potassium sulfate, experimentally determining the density of this solution, and experimentally determining the mass percent of potassium sulfate in this solution. Your pre-lab assignment is to develop procedures for parts A, B, and C. You will then execute these procedures in lab. PREPARATION OF A SATURATED AQUEOUS POTASSIUM SULFATE SOLUTION Reminder: use a maximum of 75 mL of water. A. В. DENSITY OF SATURATED AQUEOUS POTASSIUM SULFATE SOLUTION C. MASS PERCENT OF POTASSIUM SULFATE IN A SATURATED POTASSIUM SULFATE SOLUTION

In the fofowing neutralization reaction, it takes 15.8 mL of 0.650 M NaOH to neutralize 24.5 mL of H2504, Calculate the concentration of the H250 solution. Enter your answer with no units   H2SO4 (0)2 NaOH (aq) + 2 H2O (+ Na2SO4 (aq)

< What volume (in mL) of 0.200 M HCI would be required to completely react with 6.65 g of Al in the following chemical reaction? 2 Al(s) + 6 HCl(aq) → 2 AICI3 (aq) + 3 H₂(g) tab Tap here or pull up for additional resources Q @ 2 W # 3 E $ 4 R % LO 5 T ^ Question 10 of 18 6 Y & 7 U 8 9 ) +1 0

When a Vitamin C (ascorbic acid; MM = 176.12 g mol-1) tablet is crushed, dissolved and titrated with 0.0377  M KIO3(aq) to a purple/blue endpoint (given by a starch indicator), the volume of KIO3 used is 40.01 mL.  How many mg of Vitamin C were in the tablet? KIO3(aq) + 5 KI + 6 H+ → 3 I2(aq) + 3 H2O I2 (aq) + ascorbic acid → 2 I- + dehydroascorbic acid

How will the following sitations affect the final calculation of the molarity of HC2H3O2? An air bubble was present in the tip of the buret when making the intial volume reading, but not when making the final volume reading.  After the standardization of the NaOH solution using solid H2C2O4 * 2H2O, the molar mass of anhydrous oxalic acid was used to calculate the molarity of the NaOH solution.

Step by step please. Thanks