CHM 101L M3 Evaluate Antacids Lab Report

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What is the concentration of a solution made by diluting 85 mL of 6.0 M HCl to a final volume of 750 mL? concentration: J $ 4 R F F4 V % 5 T G B ^ 6 MacBook Air Y H & 7 N B U J * 8 M MOSISO DII FB K 9 H DD FO O ) O L command A F10 P A. 1. option 4 F11 L ? + f F12 M delete ret

What are the Volumes of HCl from the 3 Trials?

Determine the amount in grams of KCI that exists in 20.3 g of a solution that contains 1.14 % KCl by mass X STARTING AMOUNT RESET 3 ANSWER ADD FACTOR * ( ) 0.001 1000 %m KCI 6.022 x 10²3 20.3 mol KCI 74.55 17.8 g solution 100 1.14 g KCI 1450 1 g KCl/mol 0.272 10 0.014 23.1 0.231 0.1 0.01 Tap here or pull up for additional resources

Find the average volume of NaOH used as well as the average volume of H2SO4 used. Avg. volume of NaOH →  Avg. volume of H2SO4 →

15 16 17 18 19 20 21 22 23 24 25 26 27 An aqueous solution at 25 °C has a OH concentration of 1. x 10 "M. Calculate the H,O' concentration. Be sure your answer has 1 significant digits. -10 M dh Submit Assignment Continue MacBook Air F12 F9 F10 888 O00 FB 30 F7 F5 F6 esc F4 F2 F3 F1 & @ # $ %3D 4 5 7 8 9 2 3

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What is the molarity of an aqueous solution that contains 0.0720 g CaH.O2 per gram of solution . The density of the solution is 1.04 g/mL STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 62.08 0.001 1.21 x 10-3 6.022 x 1023 1.04 1.12 1 1.21 4650 0.0720 1000 g solution/mL g C2HO2 g solution mol C2H6O2 g C:H6O2/g solution g C2H6O2/mol L solution M C2H&O2 mL solution

What is the molarity of an aqueous solution that contains 0.0720 g C2H6O2 per gram of solution . The density of the solution is 1.04 g/mL X STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 1.04 62.08 6.022 x 1023 0.0720 1.21 x 10-3 4650 1.12 1000 1.21 1 0.001 g C2H.O2 mol C2H6O2 g C2H&Oz/mol g solution/mL mL solution g C2H6O2/g solution M C2H6O2 L solution g solution

a solution of HNO3 with a volume of 450 ml and a concentration of 0.3 M, if 225 ml of HNO3 was pipitted, calculate the concentration of the solution after pipitting. Select one: O a. 0.15 M O b.0.5 M O c. 1.3 M d. 0.6 M O e. 0.3 M ge Next page /attempt.php?attempt=108142&cmid381235&page=D14# hp

1:06 1 | 5GE Question 22 of 25 Submit What is the molarity of an aqueous solution that contains 0.0720 g C2H,O, per gram of solution. The density of the solution is 1.04 g/mL STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 1.21 0.0720 g C2H,O2/mol 1 1.21 x 10-3 mL solution 1.12 g C2H,O2/g solution 4650 mol C2H,O2 62.08 g solution/mL 0.001 g solution 6.022 x 1023 M C2H,O2 1000 g C2H,O2 1.04 L solution

Using the average volume of HCl from #2, calculate the average concentration of your unknown acid. Avg. volume of HCl → 16mL

Use your average AA concentration to calculate the mass percent of acetic acid in vinegar.

Determination of known acid concentration     Trial 1 Trial 2 Trial 3 Volume of acid used (mL) 25 mL HCl 25 mL HCl 25 mL HCl Initial buret reading (mL) 50 mL 50 mL 50 mL Final buret reading (mL) 30 .7 mL 31.1 mL 29.3 mL Volume of NaOH used (mL) 50 mL 50 mL 50 mL Molarity of NaOH       Calculated Molarity of HCl   Show a sample calculation of HCl molarity   Average concentration of HCl from Trials 1,2, and 3   The “true” concentration of HCl is 0.10 M. The calculated average concentration of HCl is ______________M. The % error is = (???? − ?????)/????? ? 100

31 Name Date Lab Section Results and Discussion - Experiment 3 - Acids and Bases: Analysis A. Analysis of vinegar 1. Unknown vinegar number $1- 10716 feR=103.63 fl:112.2 f2=108.4 2. Mass of flask %3D 3. Mass of flask + 5.00 mL of vinegar %3D 4. Mass of 5.00 mL of vinegar 5. Density of vinegar Oo\M 6. Molarity of sodium hydroxide solution Titrations flask 1 flask 2 flask 3 41.7 7. Final buret reading 8. Initial buret reading 41.7 41.7 9. Volume of NAOH soln. 10. Moles of NaOH 11. Moles of acetic acid 12. Molarity of acetic acid 13. Average molarity of acetic acid in vinegar 14. Deviation of each molarity from average 15. Average deviation of molarity (see Expt. 4) 16. Mass percent of acetic acid in vinegar (show calculations below) O 2015 Cengage Learning. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.

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16 You need to make an aqueous solution of 0.237 M cobalt(II) fluoride for an experiment in lab, using a 250 mL volumetric flask. How much solid cobalt(II) fluoride should you add? grams Submit Answer Review Topics] [References] Use the References to access important values if needed for this question. Retry Entire Group 8 more group attempts remaining Cengage Learning Cengage Technical Support Previous Next> Save and Exit

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If you needed 200 L of 6M HCl for your pool, what volume of your unknown HCl would you need to add instead( if it's not 6M) SHOW WORK!

Determination of unknown acid concentration     Trial 1 Trial 2 Trial 3 Unknown Acid number Volume of acid used (mL) 25 mL 25 mL 25 mL Initial buret reading (mL) 50 mL 50 mL 50 mL Final buret reading (mL) 14.8 mL 15 mL 14.5 mL Volume of NaOH used (mL) 50 mL 50 mL 50 mL Molarity of NaOH       Calculated molarity of HCl (M)               Show a sample calculation of HCl molarity   AVERAGE MOLARITY OF Unknown HCl Show a sample calculation of NaOH molarity

What are the moles of NaOH in each of the 3 trials?

7 Solid lead (II) nitrate is slowly added to 125 mL of a 0.190 M potassium hydroxide solution until the concentration of lead ion is 0.0547 M. The percent of hydroxide ion remaining in solution is %. Submit Answer $ 4 R LLO % 5 [Review Topics) [References Use the References to access important values if needed for this question. Retry Entire Group T Cengage Learning | Cengage Technical Support ^ 6 * 8 more group attempts remaining MacBook Pro G H 2 & 7 A J * 0 8 ( 9 UD U K F 0 ) O ◆ P | Previous Email Instructor { [ + 11 = Next> Save and Exit } ]