Homework Answers
4. The balanced chemical equations are
a. Alla-Seltzer reaction
3NaHCO3(aq) + C6H8O7(aq) --------> 3CO2(g) + Na3C6H5O7(aq) + 3H2O.
b. Unknown antacid reaction
CaCO3(aq) + 2HCl(aq) ------> CO2(g) + CaCl2(aq)+ H2O(l)
5. Citric acid is the limiting reagent.
1000 mg of citrric acid requires 252*1000/192 = 1312.5 mg of NaHCO3 but given mass of sodium bicarbonate is 1916 mg.
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4. The following two reactions are investigated in this experiment. Select the coefficients to obtain the...
8. A student performs parts A and B of the experiment and attains an average percent...
8. A student performs parts A and B of the experiment and attains an average percent yield from the Alka- Seltzer of 64.6%. Using this value and the following data perform the calculations for part B and complete the table below. Assume the pressure has not changed. As it states in the manual: You may apply the findings regarding percent-yield in Part A to Part B when calculating the moles of calcium carbonate Trial 2 Trial 1 Mass Antacid used...
Below is a lab hand out for the questions. All my data for the questions are...
Below is a lab hand out for the questions. All my data for the questions are filled out below in BOLD LETTERING. All the questions I need answered are at the bottom with boxes where to put the answers. Background Alka-Seltzer� is an over-the-counter antacid and pain relief drug. The tablet contains aspirin (acetylsalicylic acid), citric acid, and sodium bicarbonate (NaHCO3). Sodium bicarbonate (NaHCO3) is responsible for the effervescent action of Alka-Seltzer. In this lab we will investigate the reaction...
Experiment 9 Analysis of an Antacid using the ideal gas law. Calculations: 1) Find moles of...
Experiment 9 Analysis of an Antacid using the ideal gas law.
Calculations:
1) Find moles of CO2
2) Find moles of NaHCO3
3) Find mass of NaHCO3
4) Find mass % of NaHCO3
5) Find average mass % NaHCO3 in Alka-Seltzer
Sheet 23° torr Atmospheric pressure, mmHg 755.0 Temperature of H,O, "C Vapor pressure of H.O at this temperature 21.1 Calculated pressure of CO, in the system, mmHg 733.9 Balanced reaction of NaHCO, and HCl (see Pre-Laboratory Question 4a) =...
An Alka-Seltzer tablet consists of NaHCOs (sodium bicarbonate), citric acid (H3C&HsO; citric acid...
I Need the pre-lab
Questions, please
An Alka-Seltzer tablet consists of NaHCOs (sodium bicarbonate), citric acid (H3C&HsO; citric acid is triprotic), aspirin and other inert ingredients. When dissolved in water, citric acid and NaHCO3 components react as follows: In the first part of the experiment, we will determine the mass of NaHCO in a tablet of Alka Seltzer. To do this, we will use a known mass of a powdered sample of Alka-Seltzer and determine the mass of CO2 gas...
Pranola POS Analysis of Alka-Seltzer NAME DATE SECTION Post-Laboratory Assignment Answer the following on additional sheets...
Pranola POS Analysis of Alka-Seltzer NAME DATE SECTION Post-Laboratory Assignment Answer the following on additional sheets of paper: 1. Write balanced chemical equations for each of the following descriptions: a. potassium carbonate reacts with nitric acid b. calcium bicarbonate reacts with sulfuric acid c. strontium bicarbonate reacts with hydrochloric acid 2. The following reaction is known to occur between carbon dioxide and wat 3. Calculate the mass percent of NaHCO, based on the manufacturer's list of ingredients: 325 mg aspirin,...
The fizz produced when an AlkaSeltzer® tablet is dissolved in water is due to the reaction...
The fizz produced when an AlkaSeltzer® tablet is dissolved in water is due to the reaction between sodium bicarbonate, NaHCO3, and a triprotic organic acid, citric acid, H3C6H5O7. The products of this reaction are carbon dioxide gas, water, and sodium citrate. 3 NaHCO3 (aq) + H3C6H5O7 (aq)→ 3 CO2 (g) + 3 H2O(l) + Na3C6H5O7 (aq) In an experiment 1.00 g of sodium bicarbonate and 1.00 g of citric acid are allowed to react. A.Which of the five compounds in...
Please help me with problem B. Please provide details to help me understand. B. Titration of...
Please help me with problem B. Please provide details
to help me understand.
B. Titration of an Antacid Description Antacid 1 Antacid 2 Brand of Antacid Tums Alka-Seltzer Bases( s) in Antacid CaCO NaHCO; Mass of Flask 178.64g 178.55g Mass of Flask and Antacid 179.11g 178.93g Molarity of HCI Solution 0.10M 0.10M Total Volume (mL) of HCL Solution Added 500ml 50.Om Molarity of NaOH Solution 0.10M 0.10M Initial Volume (mL) of NaOH Solution 0.54ml 0.58ml Final Volume (mL) of NaOH...
Date Prelaboratory Questions in this experiment, you will use a water displacement setup to determine the...
Date Prelaboratory Questions in this experiment, you will use a water displacement setup to determine the CO2 produced by an Alka-Seltzer tablet in water. etup to determine the amount of Drug Facts Active ingredients in each tablet Purpose Anhydrous citric acid 1000 mg ..................Antacid Aspirin 325 mg (NSAID)......... ........Analgesic Sodium bicarbonate (heat-treated) 1916 mg.................. Antacid "nonsteroidal anti-inflammatory drug An Alka-Seltzer tablet reacts with water forming bubbles of CO2 from the formation and decomposition of carbonic acid, H.CO. Carbonic acid is...
4. Alka-Seltzer contains sodium bicarbonate (NaHCO3) and citric acid 113 CH 07. When a tablet is...
4. Alka-Seltzer contains sodium bicarbonate (NaHCO3) and citric acid 113 CH 07. When a tablet is dissolved in water, the following reaction produces sodium citrate, water, and carbon dioxide (gas): NaHCO3 + H3C H50, NagC6H50- + H2O + CO2 Balance the chemical equation using the homogeneous system discussed in class
Date Prelaboratory Questions in this experiment, you will use a water displacement setup to determine the CO2 prod...
Date Prelaboratory Questions in this experiment, you will use a water displacement setup to determine the CO2 produced by an Alka-Seltzer tablet in water. etup to determine the amount of Drug Facts Active ingredients in each tablet Purpose Anhydrous citric acid 1000 mg.... ............. .... Antacid Aspirin 325 mg (NSAID)"..... ---..... Analgesic Sodium bicarbonate (heat-treated) 1916 mg.................Antacid "nonsteroidal anti-inflammatory drug An Alka-Seltzer tablet reacts with water forming bubbles of CO2 from the formation and decomposition of carbonic acid, H.CO. Carbonic...
8. A student performs parts A and B of the experiment and attains an average percent yield from the Alka- Seltzer of 64.6%. Using this value and the following data perform the calculations for part B and complete the table below. Assume the pressure has not changed. As it states in the manual: You may apply the findings regarding percent-yield in Part A to Part B when calculating the moles of calcium carbonate Trial 2 Trial 1 Mass Antacid used...
Experiment 9 Analysis of an Antacid using the ideal gas law.
Calculations:
1) Find moles of CO2
2) Find moles of NaHCO3
3) Find mass of NaHCO3
4) Find mass % of NaHCO3
5) Find average mass % NaHCO3 in Alka-Seltzer
Sheet 23° torr Atmospheric pressure, mmHg 755.0 Temperature of H,O, "C Vapor pressure of H.O at this temperature 21.1 Calculated pressure of CO, in the system, mmHg 733.9 Balanced reaction of NaHCO, and HCl (see Pre-Laboratory Question 4a) =...
I Need the pre-lab
Questions, please
An Alka-Seltzer tablet consists of NaHCOs (sodium bicarbonate), citric acid (H3C&HsO; citric acid is triprotic), aspirin and other inert ingredients. When dissolved in water, citric acid and NaHCO3 components react as follows: In the first part of the experiment, we will determine the mass of NaHCO in a tablet of Alka Seltzer. To do this, we will use a known mass of a powdered sample of Alka-Seltzer and determine the mass of CO2 gas...
Pranola POS Analysis of Alka-Seltzer NAME DATE SECTION Post-Laboratory Assignment Answer the following on additional sheets of paper: 1. Write balanced chemical equations for each of the following descriptions: a. potassium carbonate reacts with nitric acid b. calcium bicarbonate reacts with sulfuric acid c. strontium bicarbonate reacts with hydrochloric acid 2. The following reaction is known to occur between carbon dioxide and wat 3. Calculate the mass percent of NaHCO, based on the manufacturer's list of ingredients: 325 mg aspirin,...
Please help me with problem B. Please provide details
to help me understand.
B. Titration of an Antacid Description Antacid 1 Antacid 2 Brand of Antacid Tums Alka-Seltzer Bases( s) in Antacid CaCO NaHCO; Mass of Flask 178.64g 178.55g Mass of Flask and Antacid 179.11g 178.93g Molarity of HCI Solution 0.10M 0.10M Total Volume (mL) of HCL Solution Added 500ml 50.Om Molarity of NaOH Solution 0.10M 0.10M Initial Volume (mL) of NaOH Solution 0.54ml 0.58ml Final Volume (mL) of NaOH...
Date Prelaboratory Questions in this experiment, you will use a water displacement setup to determine the CO2 produced by an Alka-Seltzer tablet in water. etup to determine the amount of Drug Facts Active ingredients in each tablet Purpose Anhydrous citric acid 1000 mg ..................Antacid Aspirin 325 mg (NSAID)......... ........Analgesic Sodium bicarbonate (heat-treated) 1916 mg.................. Antacid "nonsteroidal anti-inflammatory drug An Alka-Seltzer tablet reacts with water forming bubbles of CO2 from the formation and decomposition of carbonic acid, H.CO. Carbonic acid is...
4. Alka-Seltzer contains sodium bicarbonate (NaHCO3) and citric acid 113 CH 07. When a tablet is dissolved in water, the following reaction produces sodium citrate, water, and carbon dioxide (gas): NaHCO3 + H3C H50, NagC6H50- + H2O + CO2 Balance the chemical equation using the homogeneous system discussed in class
Date Prelaboratory Questions in this experiment, you will use a water displacement setup to determine the CO2 produced by an Alka-Seltzer tablet in water. etup to determine the amount of Drug Facts Active ingredients in each tablet Purpose Anhydrous citric acid 1000 mg.... ............. .... Antacid Aspirin 325 mg (NSAID)"..... ---..... Analgesic Sodium bicarbonate (heat-treated) 1916 mg.................Antacid "nonsteroidal anti-inflammatory drug An Alka-Seltzer tablet reacts with water forming bubbles of CO2 from the formation and decomposition of carbonic acid, H.CO. Carbonic...
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