Show by appropriate calculations that there is excess sulfamic acid, HSO3NH2, used in this experiment, even if your unk...
Show by appropriate calculations that there is excess sulfamic acid, HSO3NH2, used in this experiment, even if your unknown sample is pure sodium nitrite, NaNO2. Amount of HSO3NH2: .18g. Amount of unknown sample: just over .1g. This is a pre-lab, so this is the only information given.
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Show by appropriate calculations that there is excess sulfamic acid, HSO3NH2, used in this experiment, even if your unk...
1. 0.150 g of sulfamic acid is used in this experiment, how many grams of NaNO2...
1. 0.150 g of sulfamic acid is used in this experiment, how many grams of NaNO2 should be used to ensure that all of the sulfamic acid reacts? How many moles of nitrogen gas will be produced? Answers: 0.107 g, 1.54 x 10 mole 4. In an experiment, N2 gas is produced and collected over water in an inverted buret as shown in Figure 1. Lab temperature was 20.0°C and barometric pressure was 700.0 mm Hg. The difference in the...
An unknown sample of sulfuric acid was determined by the method used in this experiment. The...
An unknown sample of sulfuric acid was determined by the method used in this experiment. The sodium hydroxide was standardized by titration of 0.0855g of oxalic acid dihydrate with 25.28mL of sodium hydroxide. 10.00ml of the unknown sulfuric acid was then titrated to endpoint with 32.34mL of the same sodium hydroxide solution. What was the concentration of the sulfuric acid? (Show your work!!)
Experiment 11: Titration Pre-Lab Report Sheet Name Lab Section: Show your work for any calculations. 1....
Experiment 11: Titration Pre-Lab Report Sheet Name Lab Section: Show your work for any calculations. 1. Consider the reaction of sulfuric acid, H,SO., with sodium hydroxide, NaOH. H2SO (aq) + 2NaOH(aq) → 2 H2O(l) + Na:SO (aq) Suppose a beaker contains 35.0 ml of 0.175 MH SO. How many moles of NaOH are needed to react completely with the sulfuric acid? 2. In the titration of total acid with sodium hydroxide, NaOH, it was determined that 36,03 mL of 0.0980...
1. Assume that your vinegar contained a small amount of citric acid (a triprotic acid). Using the same experiment...
1. Assume that your vinegar contained a small amount of citric acid (a triprotic acid). Using the same experimental data, would vou expect the molarity of this sample to be POST-LAB QUESTIONS the same as or different than a sample which contained only pure acetic acid? 2 Assume that the tip of your buret was not properly filled with NaOH solution. It contained an air bubble which was eliminated during the titration. Would the caleulated molarity of the vinegar be...
REPORT FOR EXPERIMENT 23 INSTRUCTOR Neutralization-Titration I A. Molarity of an Unknown Acid Data Table Sample...
REPORT FOR EXPERIMENT 23 INSTRUCTOR Neutralization-Titration I A. Molarity of an Unknown Acid Data Table Sample 3 (if needed Sample 1 Sample 2 Acid BaseAcidBse AcidBase Final buret reading Initial buret reading o Volume used 200D If a pipet is used to measure the volume of acid, record only in the space for volume used. Molarity of base (NaOH) CALCULATIONS: In the spaces below, show calculation setups for Sample 1 only. Show answers for both samples in the boxes. Sample...
Answer all questions In today's experiment, benzoic acid and excess methanol are refluxed in the presence...
Answer all questions
In today's experiment, benzoic acid and excess methanol are refluxed in the presence of a catalytic amount of sulfuric acid: + CH OH H.SO ? + H2O MW 136.15 Benzoic acid MW 122.12 Methanol density 0.791g/ml MW 32.04 1. Draw the structure for the expected organic product, shown as "?" in the equation above: 2. If the reactions starts with 10.00 g of benzoic acid and 25.0 ml. of methanol (excess), what is the theoretical yield of...
Experiment 9- Decomposition of Baking Soda A. mass of H2CO3 gas released, (H2CO3 decomposed into H2O...
Experiment 9- Decomposition of Baking Soda
A. mass of H2CO3 gas released, (H2CO3 decomposed into H2O +
CO2)?
B. mass of NaHCO3 in unknown mixture?
C. mass of NaHCO3 in unknown mixture?
D. mass of KCL in unknown mixture?
CURCU ILI U ULICOS MOLLE (Part 2) Percent of NaHCO3 in an Unknown Mixture 1) Weigh out approximately 1 g of the unknown sample into your cruci 2) Repeat the steps of the previous procedure. ne steps of the previous procedure....
Show work as well Your T. A.'s Name Lab meeting time Your Name Pre-Laboratory Assignment (Part...
Show work as well
Your T. A.'s Name Lab meeting time Your Name Pre-Laboratory Assignment (Part 3) 1. A student determined percent of Br in a sample of an unknown bromide gravimetrically by dissolving 1.691 of solid unknown in water, adding excess of AgNO, and precipitating AgBr. He obtained 3.450 g of AgBr. Using these data, calculate % bromide in the unknown. (Give set-up and numerical answer. If you use more than one step in your calculations, show all work.)...
..ll GoSmart 9:18 PM 7 73% Х CHM 103 Lab 3 Acid Base... + U Experiment...
..ll GoSmart 9:18 PM 7 73% Х CHM 103 Lab 3 Acid Base... + U Experiment 3 ACIDS AND BASES: ANALYSIS Learning Objectives Upon completion of this experiment, Mudents will have experienced 1. The determination of the percent by mass of acetic acid in vinegar 2. The determination of the molecular mass of an unknown acid Text Toples Acids and buses, indicators, titrations Notes to Students and Instructor The solution of sodium hydroxide prepared last week will be used to...
It's a weak acid strong base titration Experiment 4: Identification of an unknown acid by titration...
It's a weak acid strong base titration
Experiment 4: Identification of an unknown acid by titration Page 2 of 15 Background In this experiment, you will use both qualitative and quantitative properties to determine an unknown acid's identity and concentration. To do this analysis, you will perform a titration of your unknown acid sample-specifically a potentiometric titration where you use a pH meter and record pH values during the titration, combined with a visual titration using a color indi- cator...
1. 0.150 g of sulfamic acid is used in this experiment, how many grams of NaNO2 should be used to ensure that all of the sulfamic acid reacts? How many moles of nitrogen gas will be produced? Answers: 0.107 g, 1.54 x 10 mole 4. In an experiment, N2 gas is produced and collected over water in an inverted buret as shown in Figure 1. Lab temperature was 20.0°C and barometric pressure was 700.0 mm Hg. The difference in the...
An unknown sample of sulfuric acid was determined by the method used in this experiment. The sodium hydroxide was standardized by titration of 0.0855g of oxalic acid dihydrate with 25.28mL of sodium hydroxide. 10.00ml of the unknown sulfuric acid was then titrated to endpoint with 32.34mL of the same sodium hydroxide solution. What was the concentration of the sulfuric acid? (Show your work!!)
Experiment 11: Titration Pre-Lab Report Sheet Name Lab Section: Show your work for any calculations. 1. Consider the reaction of sulfuric acid, H,SO., with sodium hydroxide, NaOH. H2SO (aq) + 2NaOH(aq) → 2 H2O(l) + Na:SO (aq) Suppose a beaker contains 35.0 ml of 0.175 MH SO. How many moles of NaOH are needed to react completely with the sulfuric acid? 2. In the titration of total acid with sodium hydroxide, NaOH, it was determined that 36,03 mL of 0.0980...
1. Assume that your vinegar contained a small amount of citric acid (a triprotic acid). Using the same experimental data, would vou expect the molarity of this sample to be POST-LAB QUESTIONS the same as or different than a sample which contained only pure acetic acid? 2 Assume that the tip of your buret was not properly filled with NaOH solution. It contained an air bubble which was eliminated during the titration. Would the caleulated molarity of the vinegar be...
REPORT FOR EXPERIMENT 23 INSTRUCTOR Neutralization-Titration I A. Molarity of an Unknown Acid Data Table Sample 3 (if needed Sample 1 Sample 2 Acid BaseAcidBse AcidBase Final buret reading Initial buret reading o Volume used 200D If a pipet is used to measure the volume of acid, record only in the space for volume used. Molarity of base (NaOH) CALCULATIONS: In the spaces below, show calculation setups for Sample 1 only. Show answers for both samples in the boxes. Sample...
Answer all questions
In today's experiment, benzoic acid and excess methanol are refluxed in the presence of a catalytic amount of sulfuric acid: + CH OH H.SO ? + H2O MW 136.15 Benzoic acid MW 122.12 Methanol density 0.791g/ml MW 32.04 1. Draw the structure for the expected organic product, shown as "?" in the equation above: 2. If the reactions starts with 10.00 g of benzoic acid and 25.0 ml. of methanol (excess), what is the theoretical yield of...
Experiment 9- Decomposition of Baking Soda
A. mass of H2CO3 gas released, (H2CO3 decomposed into H2O +
CO2)?
B. mass of NaHCO3 in unknown mixture?
C. mass of NaHCO3 in unknown mixture?
D. mass of KCL in unknown mixture?
CURCU ILI U ULICOS MOLLE (Part 2) Percent of NaHCO3 in an Unknown Mixture 1) Weigh out approximately 1 g of the unknown sample into your cruci 2) Repeat the steps of the previous procedure. ne steps of the previous procedure....
Show work as well
Your T. A.'s Name Lab meeting time Your Name Pre-Laboratory Assignment (Part 3) 1. A student determined percent of Br in a sample of an unknown bromide gravimetrically by dissolving 1.691 of solid unknown in water, adding excess of AgNO, and precipitating AgBr. He obtained 3.450 g of AgBr. Using these data, calculate % bromide in the unknown. (Give set-up and numerical answer. If you use more than one step in your calculations, show all work.)...
..ll GoSmart 9:18 PM 7 73% Х CHM 103 Lab 3 Acid Base... + U Experiment 3 ACIDS AND BASES: ANALYSIS Learning Objectives Upon completion of this experiment, Mudents will have experienced 1. The determination of the percent by mass of acetic acid in vinegar 2. The determination of the molecular mass of an unknown acid Text Toples Acids and buses, indicators, titrations Notes to Students and Instructor The solution of sodium hydroxide prepared last week will be used to...
It's a weak acid strong base titration
Experiment 4: Identification of an unknown acid by titration Page 2 of 15 Background In this experiment, you will use both qualitative and quantitative properties to determine an unknown acid's identity and concentration. To do this analysis, you will perform a titration of your unknown acid sample-specifically a potentiometric titration where you use a pH meter and record pH values during the titration, combined with a visual titration using a color indi- cator...
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