A student performing Experiment 1 is dispensing water from the buret in Part B. The student...
A student performing Experiment 1 is dispensing water from the buret in Part B. The student has already performed Run 1, and the water in the buret is at the 9.30 mL mark. According to Table C, the student should dispense 6.0 mL for Run 2. To what mark, in mL, should the student drain the water in the buret in order to dispense 6.0 mL for Run 2?
Homework Answers
According to data water is already at 9.30ml mark in the buret further 6.0ml is to be added for the Run 2 and hence the reading should be 15.30ml 9.30ml. Initial
+6.00ml. To be added
Total 15.30ml
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A student performing Experiment 1 is dispensing water from the
buret in Part B. The student...
2A student, performing the same experiment as you, recorded the following informat orded the following information....
2A student, performing the same experiment as you, recorded the following informat orded the following information. Complete the data table below. The original solution was diluted by a factor of 5. Show all enlculations needed TRIAL 2 25.00 0.0900 14.50 38.00 Volume of diluted vinegar sample (mL) Molarity of NaOH Initial buret reading (mL) Final buret reading (mL) Volume of NaOH Moles of acetic acid (diluted) Molarity of acetic acid (diluted) Molarity of acetic acid (original)
Laboratory goggles must be worn! A) Preparation of Solutions from Concentrated Solution In this part the...
Laboratory goggles must be worn! A) Preparation of Solutions from Concentrated Solution In this part the experiment you will prepare several dilute solutions from the more concentrated cobalt nitrate solution 1. Read the label on the provided cobalt nitrate solution and record the molarity accurately. su-olu 563/ 316.603:48 صلاح 2. 3. 4. Molarity of Ca(NO3)2 solution 182.95 g/mol Obtain a 25-ml buret. Examine its markings, the line that spans the entire circumference occur for each milliliter. The smaller lines indicate...
1. A student performed the titration as in this experiment. He transferred a 2.00 mL sample...
1. A student performed the titration as in this experiment. He transferred a 2.00 mL sample of the acid into a flask, diluted it with water, and then began to add sodium hydroxide solution from the buret. After adding 50 mL of NaOH solution, the sample in the flask still had not turned pink. What error did the student make?
Experiment 9: Water Hardness Pre-Laboratory Questions Name Section 1. Part of a buret measuring in mL...
Experiment 9: Water Hardness Pre-Laboratory Questions Name Section 1. Part of a buret measuring in mL is shown below. Read the volume to the proper number of significant digits. Volume 2. Suppose it takes 33.69 mL of 0.005123 M EDTA to titrate 25.00 mL of a hard water solution. a) How many moles of EDTA were required to titrate to the endpoint? b) How many moles of hard water ions, expressed as moles of Ca?", are present in the hard...
titration lab report additional images of lab report QUESTIONS 1. A student masse 0878 of an...
titration lab report
additional images of lab report
QUESTIONS 1. A student masse 0878 of an unknown acid follows the titration procedure required to reach the endpoint on a 10.0 ml Calculate the molar mass of the acid. masses out 0.878 of die in 100 ml volume and titration procedure of Partsherds th the average volume of Non to reach the endpoint on 100 ml aliquot of the acid solution is 18.3 m . 2. In the vinegar titrations (Part...
please answer these questions below Experiment 7: Titration II volume of deionized water so that(20 mL...
please answer these questions below
Experiment 7: Titration II volume of deionized water so that(20 mL of solution contains 40 mg of vitamin C. For example, if you have a 500-mg tablet, crush it up and dissolve it entirely in 250 mL of deionized water. Then use 20 mL of that solution for standardization. Is the quantity 20 mL important? What would happen if you used 250 mL? Place the buret in the clamp on the ring stand. Using a...
an RESPONSES TO QUESTIONS 1. the reaction the Compound 2. A student performing the water of...
an RESPONSES TO QUESTIONS 1. the reaction the Compound 2. A student performing the water of hydration experiment can t seem to get Yarate to constant weight. Several times he heats the compound, allows cool, and weighs it. But each time he does, he obtains a different mass. Can you suggest some possible causes for this dilemma.
A student performed the experiment described in this module, using 7.00 mL of a 1.8% H2O2...
A student performed the experiment described in this module, using 7.00 mL of a 1.8% H2O2 solution with a density of 1.01 g ml-1. The water temperature was 20 °C, and the barometric pressure in the laboratory was 30.02 in. Hg. After the student immersed the yeast in the peroxide solution, she collected 45.1 mL of Oz. (2) Obtain the water vapor pressure at the water temperature, Answer: Check
In Part B of the experiment, a student mixes 28.0 mL of 1.1 M with 28.0 mL...
In Part B of the experiment, a student mixes 28.0 mL of 1.1 M with 28.0 mL of 1.000 M in a well‑insultated calorimeter and observes that the temperature of the solution increases by 6.16 C. These are similar conditions as the previous two problems. How many moles of water are formed?
Question 3 1 pts A student performs part C of the substitution lab. The student is...
Question 3 1 pts A student performs part C of the substitution lab. The student is using 0.50 Mbutyl bromine in ethanol, 0.50 M potassium hydroxide in ethanol and 0.15 M HCl for the reactions. If the student took a 20 mL sample of the solution and titrated it with HCI, what would be the [OH-] from Data Set C of the student data (shown below? Report answers with 4 places past the decimal...for example 0.000158, would be 0.0002 Data...
2A student, performing the same experiment as you, recorded the following informat orded the following information. Complete the data table below. The original solution was diluted by a factor of 5. Show all enlculations needed TRIAL 2 25.00 0.0900 14.50 38.00 Volume of diluted vinegar sample (mL) Molarity of NaOH Initial buret reading (mL) Final buret reading (mL) Volume of NaOH Moles of acetic acid (diluted) Molarity of acetic acid (diluted) Molarity of acetic acid (original)
Laboratory goggles must be worn! A) Preparation of Solutions from Concentrated Solution In this part the experiment you will prepare several dilute solutions from the more concentrated cobalt nitrate solution 1. Read the label on the provided cobalt nitrate solution and record the molarity accurately. su-olu 563/ 316.603:48 صلاح 2. 3. 4. Molarity of Ca(NO3)2 solution 182.95 g/mol Obtain a 25-ml buret. Examine its markings, the line that spans the entire circumference occur for each milliliter. The smaller lines indicate...
1. A student performed the titration as in this experiment. He transferred a 2.00 mL sample of the acid into a flask, diluted it with water, and then began to add sodium hydroxide solution from the buret. After adding 50 mL of NaOH solution, the sample in the flask still had not turned pink. What error did the student make?
Experiment 9: Water Hardness Pre-Laboratory Questions Name Section 1. Part of a buret measuring in mL is shown below. Read the volume to the proper number of significant digits. Volume 2. Suppose it takes 33.69 mL of 0.005123 M EDTA to titrate 25.00 mL of a hard water solution. a) How many moles of EDTA were required to titrate to the endpoint? b) How many moles of hard water ions, expressed as moles of Ca?", are present in the hard...
titration lab report
additional images of lab report
QUESTIONS 1. A student masse 0878 of an unknown acid follows the titration procedure required to reach the endpoint on a 10.0 ml Calculate the molar mass of the acid. masses out 0.878 of die in 100 ml volume and titration procedure of Partsherds th the average volume of Non to reach the endpoint on 100 ml aliquot of the acid solution is 18.3 m . 2. In the vinegar titrations (Part...
please answer these questions below
Experiment 7: Titration II volume of deionized water so that(20 mL of solution contains 40 mg of vitamin C. For example, if you have a 500-mg tablet, crush it up and dissolve it entirely in 250 mL of deionized water. Then use 20 mL of that solution for standardization. Is the quantity 20 mL important? What would happen if you used 250 mL? Place the buret in the clamp on the ring stand. Using a...
an RESPONSES TO QUESTIONS 1. the reaction the Compound 2. A student performing the water of hydration experiment can t seem to get Yarate to constant weight. Several times he heats the compound, allows cool, and weighs it. But each time he does, he obtains a different mass. Can you suggest some possible causes for this dilemma.
A student performed the experiment described in this module, using 7.00 mL of a 1.8% H2O2 solution with a density of 1.01 g ml-1. The water temperature was 20 °C, and the barometric pressure in the laboratory was 30.02 in. Hg. After the student immersed the yeast in the peroxide solution, she collected 45.1 mL of Oz. (2) Obtain the water vapor pressure at the water temperature, Answer: Check
Question 3 1 pts A student performs part C of the substitution lab. The student is using 0.50 Mbutyl bromine in ethanol, 0.50 M potassium hydroxide in ethanol and 0.15 M HCl for the reactions. If the student took a 20 mL sample of the solution and titrated it with HCI, what would be the [OH-] from Data Set C of the student data (shown below? Report answers with 4 places past the decimal...for example 0.000158, would be 0.0002 Data...
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