Chemistry 60 Lab Volume Measurement Workshop
2. Which glassware is most accurate for measuring volume? ____________________
3. Which reading has the greatest number of significant figures? ___________
How many significant figures does it have? _________
4. What is the difference between using a 50 mL buret vs. a 50 mL graduated cylinder?
5. Is the volume of liquid contained in each glassware the same as the measurement you
recorded for the reading? Answer yes or no.
Graduated cylinder_____ beaker______ buret_____ Erlenmeyer Flask______
If you answered no to any of them why do you think that is?
6. Are measurements from all measuring devices read to the same place? Why or why not?
7. Are all measurements from the same measuring device read to the same place? Why or
why not?
b. Will all of these measurements have the same number of significant figures? Explain.
8. If a measuring device’s smallest increments (markings) are the ones place, to what place
is a measurement properly read? Is that always true for this device?
b. How many significant figures could a properly read measurement from this device
have? What would you need to know?
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please help with the following questions Name: section #: Chemistry 60 Lab Volume Measurement Workshop 1...
please help with the following questions
Name: section #: Chemistry 60 Lab Volume Measurement Workshop 1 When determining the liquid level in glassware we read at eye level at the bottom of the curved surface called a meniscus) as shown in the diagram to the right. 1. Fill in the table by referring to shown drawings. 50 mL capacity 10 ml capacity 100 ml capacity 50 mL capacity Glassware picture 24 Glassware containing liquid Glassware name Device's smallest increments (markings)...
There will be a short quiz held at the beginning of the lab session. The quiz...
There will be a short quiz held at the beginning of the lab session. The quiz will be based on some of the material shown below. 1. A student performed a titration on a 5.00 mL sample of an unknown HCl solution, using 10.90 mL of 0.09345 M NaOH from a buret and phenolphthalein indicator. What was the concentration of the unknown HCI? Use the correct number of sign ificant figures. 2. Another student designed a procedure to determine the...
Objective: The aim of this lab is to practice recording measurements with the correct precision. Procedure:...
Objective: The aim of this lab is to practice recording measurements with the correct precision. Procedure: Several stations have been set up in this virtual lab. For each station, click on the measuring tool link, read the directions, and read the measurements according to the directions. Record this measurements with the correct units in the slot in your data table that corresponds to the station number. Remember to estimate to 1 place of uncertainty for each measurement. Then determine the...
chemistry density Density 1. Explain why a highly precise measurement does not always means a highly...
chemistry density
Density 1. Explain why a highly precise measurement does not always means a highly accurate one. 2. Read the volume in the diagram below. Report your answer in the line, including the correct number of significant figures 60 50 mL Answer: 3. Why is the density of a substance independent on sample size? 4. Ahmed obtains a silvery metallic unknown. She masses the metal and finds that she has 60.56g. When she places the metal in a graduated...
Lab Report Guide: - 1. Results (4 pts) o Tables neatly filled out with data o ...
Lab Report Guide: - 1. Results (4 pts) o Tables neatly filled out with data o Proper significant figures o Legible sample calculations - 2. Error Analysis (4 pts) o Determination of percent error (for glassware and metal densities) o Typed discussion of measured results vs literature results and description of possible sources of error. Note that “human error” is not an acceptable answer. Please be specific. - 3. Post Lab Questions (4 pts) o Hand written answers to the...
1. What do volumetric glassware measure? What types of volumetric glassware will you be using in...
1. What do volumetric glassware measure? What types of volumetric glassware will you be using in this experiment? 2. What is density? How is it calculated? 3.Define meniscus. State how you use the meniscus in making volumetric measurements. Draw a sketch of a meniscus for water in a graduated cylinder. 4. Define accuracy and precision. Explain what the “reliability of a measurement” means. (These concepts can be found in Chapter 1 of your text.) 5. Why will you calculate accurate...
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...
A chemistry student must write down in her lab notebook the concentration of a solution of...
A chemistry student must write down in her lab notebook the concentration of a solution of potassium chloride. The concentration of a solution equals the mass of what's dissolved divided by the total volume of the solution. Here's how the student prepared the solution: • The label on the graduated cylinder says: empty weight: 3.250 g • She put some solid potassium chloride into the graduated cylinder and weighed it. With the potassium chloride added, the cylinder weighed 29.91 %...
This is all the information I have. Any Help would be appreciated. Titration of an Antacid...
This is all the information I have. Any Help would be
appreciated.
Titration of an Antacid (i.e., an anti-acid, in other words a base) Part A Procedure: 1. To a beaker of appropriate size add 190 mL of distilled water. Afterwards, using your 10 mL graduated cylinder, add 10 mL of 4 M HCl (hydrochloric acid) stock solution (CAUTION - STRONG ACID-CORROSIVE!) to the 190 mL of distilled water. Mix the solution well. Using a Rainin pipet, carefully pipet 10.000...
lab report titration help please! additional images on lab report 3. Federal standards require that any...
lab report titration help please!
additional images on lab report
3. Federal standards require that any commercial material called "vinegar" must contain as cast acetic acid. According to your results in question 4, does the vinegar sample you titrated meet the Federal standards? Explain why or why not. PART B: IDENTIFICATION OF AN UNKNOWN ACID DATA Molarity of NaOH used Mass of unknown acid used 0.050M 0.5989 14.43mc Average volume of NaOH used in the titration CALCULATIONS 1. Using the...
please help with the following questions
Name: section #: Chemistry 60 Lab Volume Measurement Workshop 1 When determining the liquid level in glassware we read at eye level at the bottom of the curved surface called a meniscus) as shown in the diagram to the right. 1. Fill in the table by referring to shown drawings. 50 mL capacity 10 ml capacity 100 ml capacity 50 mL capacity Glassware picture 24 Glassware containing liquid Glassware name Device's smallest increments (markings)...
There will be a short quiz held at the beginning of the lab session. The quiz will be based on some of the material shown below. 1. A student performed a titration on a 5.00 mL sample of an unknown HCl solution, using 10.90 mL of 0.09345 M NaOH from a buret and phenolphthalein indicator. What was the concentration of the unknown HCI? Use the correct number of sign ificant figures. 2. Another student designed a procedure to determine the...
Objective: The aim of this lab is to practice recording measurements with the correct precision. Procedure: Several stations have been set up in this virtual lab. For each station, click on the measuring tool link, read the directions, and read the measurements according to the directions. Record this measurements with the correct units in the slot in your data table that corresponds to the station number. Remember to estimate to 1 place of uncertainty for each measurement. Then determine the...
chemistry density
Density 1. Explain why a highly precise measurement does not always means a highly accurate one. 2. Read the volume in the diagram below. Report your answer in the line, including the correct number of significant figures 60 50 mL Answer: 3. Why is the density of a substance independent on sample size? 4. Ahmed obtains a silvery metallic unknown. She masses the metal and finds that she has 60.56g. When she places the metal in a graduated...
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...
A chemistry student must write down in her lab notebook the concentration of a solution of potassium chloride. The concentration of a solution equals the mass of what's dissolved divided by the total volume of the solution. Here's how the student prepared the solution: • The label on the graduated cylinder says: empty weight: 3.250 g • She put some solid potassium chloride into the graduated cylinder and weighed it. With the potassium chloride added, the cylinder weighed 29.91 %...
This is all the information I have. Any Help would be
appreciated.
Titration of an Antacid (i.e., an anti-acid, in other words a base) Part A Procedure: 1. To a beaker of appropriate size add 190 mL of distilled water. Afterwards, using your 10 mL graduated cylinder, add 10 mL of 4 M HCl (hydrochloric acid) stock solution (CAUTION - STRONG ACID-CORROSIVE!) to the 190 mL of distilled water. Mix the solution well. Using a Rainin pipet, carefully pipet 10.000...
lab report titration help please!
additional images on lab report
3. Federal standards require that any commercial material called "vinegar" must contain as cast acetic acid. According to your results in question 4, does the vinegar sample you titrated meet the Federal standards? Explain why or why not. PART B: IDENTIFICATION OF AN UNKNOWN ACID DATA Molarity of NaOH used Mass of unknown acid used 0.050M 0.5989 14.43mc Average volume of NaOH used in the titration CALCULATIONS 1. Using the...
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