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10.1 Precipitation of Barium Sulfate-Pre-Lab Questions Name Date: Instructor 1. Calculate the formula weight of BaSO4.(Enter...
What is the theoretical yield of H2SO4 + BaCl2 ---> BaSO4 + 2HCl Given data: Concentration...
What is the theoretical yield of H2SO4 + BaCl2 ---> BaSO4 +
2HCl
Given data:
Concentration of BaCl2 = 0.20 M
Concentration of H2SO4 = 6 M
volume of H2S04 = 5.00 mL
What is the theoretical expected yield of precipitate as
calculated using stoichiometry?
Compare actual yield and theoretical yield. Calculate percent
yield.
Data:
Trial 1: Mass of BaSO4 precipitate = 0.191 g
Trial 2: Mass of BaSO4 precipitate = 0.187 g
What is the Millimoles of BaSO4 for...
Pre-Lab Questions 1. Write the formula and determine the molar mass for the metal carbonate of...
Pre-Lab Questions 1. Write the formula and determine the molar mass for the metal carbonate of each of the first three elements in Group 1. 2. If 2.175 g of each metal carbonate were weighted out, how many moles of each substance would you have Calculate the number of moles of CaCl2 in 125 mL of 0.2 M CaCl solution.
Student Name Course/Section Date Instructor PRE-LAB ASSIGNMENT 1. A sample of an unknown liquid is vaporized...
Student Name Course/Section Date Instructor PRE-LAB ASSIGNMENT 1. A sample of an unknown liquid is vaporized in a 255-mL flask in a hot water bath at 100.0 C. The atmospheric pressure is 748 torr and the vapor is found to have a mass of 0.714 grams. What is the molecular mass of the vapor? 2 A gas is found to be 85.7 % carbon and 14.3 % hydrogen by mass. Its molecular mass was found to be 98.1 g/mol using...
Lab Section Name Date Prelaborator laboratory Problems - Experiment 3-Acids and Bases: Analysis 1.- The ti...
Lab Section Name Date Prelaborator laboratory Problems - Experiment 3-Acids and Bases: Analysis 1.- The ti Hesa, + 2004 the titration of 25.0 mL of a sulfuric acid solution of unknown concentration requires selo ml of a 0.1234 MNOH solution. What is the concentration of the sulfuric acid 0.1234 U Wa Ohm 0.03224 Na Son +2460 3.859548X10" mokes Da OH 2. 10.00 mL of vinegar (mass10.05 g) requires 16.20 end point. Calculate the molarity and mass per 0.05 g) requires...
Pre-Lab Study Questions - Lab 9 (Reaction Stoichiometry and Moles) Date: Name: Section: Team: Instructor: 1....
Pre-Lab Study Questions - Lab 9 (Reaction Stoichiometry and Moles) Date: Name: Section: Team: Instructor: 1. In the formula Mgo, what is the relative mass ratio of magnesium to oxygen? What is the "count ratio of magnesium to oxygen in MgO? Why are the two ratios different? NNNNNNNNNNNNNNNNN11111111111111111 2. Write a balanced equation for the reaction of sodium and sulfur to form sodium sulfide. 3. Using the equation above, how many grams of sulfur are consumed with 0.750 g of...
Fill in the table and answer the questions below Name Pre-lab Questions (10 Marks) 1. Fill...
Fill in the table and answer the questions below
Name Pre-lab Questions (10 Marks) 1. Fill the table below: Materials Acetic anhydride H:SO, Salicylic acid Amount 12mL 0.25 mL 3mL Measured Molecular weight (g/mol) Moles 2. Identify the limiting reagent in this reaction? 3. Calculate the theoretical mass yield of Aspirin product? Show your work for full credit. [4] 4. What is the literature melting point of Aspirin (acetyl salicylic acid)?
PRE-LABORATORY QUESTIONS TITRATION OF A DIPROTIC ACID Name Laboratory Instructor Day and time lab meets 1....
PRE-LABORATORY QUESTIONS TITRATION OF A DIPROTIC ACID Name Laboratory Instructor Day and time lab meets 1. What is a diprotic acid? (1 pt) 2. Give the balanced chemical reaction for the titration of oxalic acid with NaOH. (1 pts) OH HO- 3. When titrating 25.0 mL of 0.10 M H2SO4 with 0.10 M NaOH, how many mL of NaOH will you have added to reach the first equivalence point? How many mL of NaOH will you have added to reach...
Pre-Lab for Determination of Solubility Product Constant 1. Write the solubility product constant (Ksp) for the...
Pre-Lab for Determination of Solubility Product Constant 1. Write the solubility product constant (Ksp) for the following reaction as a function of the concentrations of the products: Ca(103) (s) Ca²+ (aq) + 210,- (aq) 2. Ca(IO3)2 will ionize in water to produce 10, ions. The 10, ions will react with KI. Write the reaction for this reaction. 3. We will be using starch as an indicator. Why? 4. In this experiment, we will first produce Izby mixing calcium iodate with...
NAME DATE:-- POST-LAB QUESTIONS 1. Titration of 15.00 mL of a strong, diprotic acid requires 34.79...
NAME DATE:-- POST-LAB QUESTIONS 1. Titration of 15.00 mL of a strong, diprotic acid requires 34.79 mL of a 0.1648 M standardized KOH solution. What is the molarity of the acid solution? What is the formula of the acid? Show your work.) 2. The stockroom claims the percent acetic acid in vinegar to be 2.0%. The density of vinegar is 1.106 g/mL. Using your average molarity calculate the mass percent acetic acid in vinegar for comparison to the stockroom claim....
How do you calculate questions 1 - 8 for the data analysis section? A. Precipitation of CaC,O, H,O from the Salt...
How do you calculate questions 1 - 8 for the data analysis
section?
A. Precipitation of CaC,O, H,O from the Salt Mixture Unknown number Trial 1 Trial 2 1. Mass of beaker (g) 59.45 59.45 5.oS Mass of beaker and salt mixture (g) 2. 3. Mass of salt mixture (g) I, oo oS 4. Mass of filter paper (g 5. Mass of filter paper and product after air-dried or oven-dried (g) 0, 35 6. Mass of dried product (g) 7....
What is the theoretical yield of H2SO4 + BaCl2 ---> BaSO4 +
2HCl
Given data:
Concentration of BaCl2 = 0.20 M
Concentration of H2SO4 = 6 M
volume of H2S04 = 5.00 mL
What is the theoretical expected yield of precipitate as
calculated using stoichiometry?
Compare actual yield and theoretical yield. Calculate percent
yield.
Data:
Trial 1: Mass of BaSO4 precipitate = 0.191 g
Trial 2: Mass of BaSO4 precipitate = 0.187 g
What is the Millimoles of BaSO4 for...
Pre-Lab Questions 1. Write the formula and determine the molar mass for the metal carbonate of each of the first three elements in Group 1. 2. If 2.175 g of each metal carbonate were weighted out, how many moles of each substance would you have Calculate the number of moles of CaCl2 in 125 mL of 0.2 M CaCl solution.
Student Name Course/Section Date Instructor PRE-LAB ASSIGNMENT 1. A sample of an unknown liquid is vaporized in a 255-mL flask in a hot water bath at 100.0 C. The atmospheric pressure is 748 torr and the vapor is found to have a mass of 0.714 grams. What is the molecular mass of the vapor? 2 A gas is found to be 85.7 % carbon and 14.3 % hydrogen by mass. Its molecular mass was found to be 98.1 g/mol using...
Lab Section Name Date Prelaborator laboratory Problems - Experiment 3-Acids and Bases: Analysis 1.- The ti Hesa, + 2004 the titration of 25.0 mL of a sulfuric acid solution of unknown concentration requires selo ml of a 0.1234 MNOH solution. What is the concentration of the sulfuric acid 0.1234 U Wa Ohm 0.03224 Na Son +2460 3.859548X10" mokes Da OH 2. 10.00 mL of vinegar (mass10.05 g) requires 16.20 end point. Calculate the molarity and mass per 0.05 g) requires...
Pre-Lab Study Questions - Lab 9 (Reaction Stoichiometry and Moles) Date: Name: Section: Team: Instructor: 1. In the formula Mgo, what is the relative mass ratio of magnesium to oxygen? What is the "count ratio of magnesium to oxygen in MgO? Why are the two ratios different? NNNNNNNNNNNNNNNNN11111111111111111 2. Write a balanced equation for the reaction of sodium and sulfur to form sodium sulfide. 3. Using the equation above, how many grams of sulfur are consumed with 0.750 g of...
Fill in the table and answer the questions below
Name Pre-lab Questions (10 Marks) 1. Fill the table below: Materials Acetic anhydride H:SO, Salicylic acid Amount 12mL 0.25 mL 3mL Measured Molecular weight (g/mol) Moles 2. Identify the limiting reagent in this reaction? 3. Calculate the theoretical mass yield of Aspirin product? Show your work for full credit. [4] 4. What is the literature melting point of Aspirin (acetyl salicylic acid)?
PRE-LABORATORY QUESTIONS TITRATION OF A DIPROTIC ACID Name Laboratory Instructor Day and time lab meets 1. What is a diprotic acid? (1 pt) 2. Give the balanced chemical reaction for the titration of oxalic acid with NaOH. (1 pts) OH HO- 3. When titrating 25.0 mL of 0.10 M H2SO4 with 0.10 M NaOH, how many mL of NaOH will you have added to reach the first equivalence point? How many mL of NaOH will you have added to reach...
Pre-Lab for Determination of Solubility Product Constant 1. Write the solubility product constant (Ksp) for the following reaction as a function of the concentrations of the products: Ca(103) (s) Ca²+ (aq) + 210,- (aq) 2. Ca(IO3)2 will ionize in water to produce 10, ions. The 10, ions will react with KI. Write the reaction for this reaction. 3. We will be using starch as an indicator. Why? 4. In this experiment, we will first produce Izby mixing calcium iodate with...
NAME DATE:-- POST-LAB QUESTIONS 1. Titration of 15.00 mL of a strong, diprotic acid requires 34.79 mL of a 0.1648 M standardized KOH solution. What is the molarity of the acid solution? What is the formula of the acid? Show your work.) 2. The stockroom claims the percent acetic acid in vinegar to be 2.0%. The density of vinegar is 1.106 g/mL. Using your average molarity calculate the mass percent acetic acid in vinegar for comparison to the stockroom claim....
How do you calculate questions 1 - 8 for the data analysis
section?
A. Precipitation of CaC,O, H,O from the Salt Mixture Unknown number Trial 1 Trial 2 1. Mass of beaker (g) 59.45 59.45 5.oS Mass of beaker and salt mixture (g) 2. 3. Mass of salt mixture (g) I, oo oS 4. Mass of filter paper (g 5. Mass of filter paper and product after air-dried or oven-dried (g) 0, 35 6. Mass of dried product (g) 7....
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