Results 1. Using the analytical balance Mass of the stoppered flask (g) 49.3510 Mean mass (g)...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Results 1. Using the analytical balance Mass of the stoppered flask (g) 49.3510 Mean mass (g) 44.35 Calculation: 49.3510+49.3473 +49.3461+ 49.3462 = 197.3906 = 49.34715 2. Using the pipet Temperature (°C) Addition No. Mass after addition (g) Mass before addition (g) Mass of added water (g) Volume of water delivered each time (mL) Calculations: 4 44.3475 49.3461 49.3467 24°c 1 2 3 4 59.1745 69.0600 79.9195 88.8295 49.3475 59.1745 69.0600 79.9195 9.82685 9,8855 10.8595 8.91 0.9973 Density of water (g/mL) 985345 9.91226 10.889 8.93412 Mean volume (mL) 9.85345 + 9.91226 + 10.8889 +8.93412 39.58873 4 4 HOOP 9.8971825 WAX WE Questions 1. a. Calculate the standard deviation in the measured mass of the empty stoppered flask (see Appendix: Mistakes, Errors, Accuracy, and Precision). S mish Student name: 2. a. digit Course/Section: Date: Using the mean volume of water and the standard deviation, determine the number of significant figures that is allowed by the precision inherent in your pipet technique. Give the mean volume with the correct number of significant figures. 5.7x 103 0.0057 Standard deviation Rounding the standard deviation to single = 0.006. meaning the varability occurs in the thousand place (3rd decimal). Since the # of Significant b. Some claim that a precision of 10.01 mL can be achieved with a 10-ml pipet. However, students who are learning the technique of using a pipet may not achieve this precision. How do your results compare with the claim? If you have not been able to obtain this precision, try to pinpoint the deficiencies in your pipet technique. Results 1. Using the analytical balance Mass of the stoppered flask (g) 49.3510 Mean mass (g) 44.35 Calculation: 49.3510+49.3473 +49.3461+ 49.3462 = 197.3906 = 49.34715 2. Using the pipet Temperature (°C) Addition No. Mass after addition (g) Mass before addition (g) Mass of added water (g) Volume of water delivered each time (mL) Calculations: 4 44.3475 49.3461 49.3467 24°c 1 2 3 4 59.1745 69.0600 79.9195 88.8295 49.3475 59.1745 69.0600 79.9195 9.82685 9,8855 10.8595 8.91 0.9973 Density of water (g/mL) 985345 9.91226 10.889 8.93412 Mean volume (mL) 9.85345 + 9.91226 + 10.8889 +8.93412 39.58873 4 4 HOOP 9.8971825 WAX WE Questions 1. a. Calculate the standard deviation in the measured mass of the empty stoppered flask (see Appendix: Mistakes, Errors, Accuracy, and Precision). S mish Student name: 2. a. digit Course/Section: Date: Using the mean volume of water and the standard deviation, determine the number of significant figures that is allowed by the precision inherent in your pipet technique. Give the mean volume with the correct number of significant figures. 5.7x 103 0.0057 Standard deviation Rounding the standard deviation to single = 0.006. meaning the varability occurs in the thousand place (3rd decimal). Since the # of Significant b. Some claim that a precision of 10.01 mL can be achieved with a 10-ml pipet. However, students who are learning the technique of using a pipet may not achieve this precision. How do your results compare with the claim? If you have not been able to obtain this precision, try to pinpoint the deficiencies in your pipet technique.
Expert Answer:
Related Book For
Posted Date:
Students also viewed these mathematics questions
-
Calculate the standard deviation in the anticipated returns found in Problem81. State of the Economy Rapid expansion and recovery Modest growth Continued recession Probability 5% 45% Fund Retum 100%...
-
The mass of the Empty Flask is 49.6536gand the Density is assumed to be 1. Ill fipet Tlalibiration. True Volume Appeck ent alPpRalent Mass of mos5 of pipet scadig (m1) 0,00 1000 Plask (5) 4A 6536...
-
A chunk of ice of mass ml = 100 g at a temperature tx = 0 C was placed in a calorimeter in which water of mass m1 = 100 g was at a temperature t1. Assuming the heat capacity of the calorimeter to be...
-
A project is proposed to design a database for shops selling dairy products. Each shop has a unique ID, name, address and owner. Different shops could be owned by the same owner. Each shop sells...
-
A manager at a check into cash business defends his business practice as simply charging what the market will bear. After all, says the manager, we dont force people to come in the door. How would...
-
Why might IFRS revalue land and buildings whereas under GAAP this practice is not permissible?
-
The equity belongs to Paul because he is the sole owner of the business. Can you explain how the figure for equity by Thursday evening has arisen? You will need to look back at the events of Monday,...
-
What does each of the following categories of ratios attempt to measure? (a) Liquidity; (b) Long-term borrowing capacity; (c) Profitability. Name a group of users who might be interested in each...
-
You work as the Facilities Manager at a hospitality organization. How will you explain these concepts below to upper management and your employees at large on behalf of the guests. 1. What are the...
-
Amadeus Corporation is considering the issue of a new product to be added to its product mix. They hired you, a recent business graduate from MacEwan, for conducting the analysis. The production line...
-
The following is a December 31, 2021, post-closing trial balance for Almway Corporation. Account Title Cash Investment in equity securities Accounts receivable Inventory Prepaid insurance (for the...
-
It is your job to make all financial decisions for your company. In this role-play you will make decisions about purchasing insurance for your company. To make things easy, we will focus only on the...
-
If you are not pursing a human resource career, explore this question from the role you expect to obtain in an organization. For example, if you are pursuing health care management, how do you...
-
James, a high caliber VP-Marketing of a large bank gets a monthly salary of P250,000 a month and is given a monthly budget of P50,000 for treating valued clients of the bank. He had to account for...
-
What was your overall reaction to Washington's speech? 2. Pick out a specific quote from the video that you could relate to, found meaningful, OR that you questioned or disagreed with and discuss. ...
-
1. An economy produces two products, timber (T) and fish (F), according to the production possibilities table below. The usual assumptions apply. a) Plot the data from the production possibilities...
-
a. The information given below pertains to three companies which recently paid exactly the same dividends of RM2.00 per share. However, the future annual growth rate in dividends, g, for each firm is...
-
Do public and private companies follow the same set of accounting rules? Explain.
-
The table shown below comes from a study reported by Larry Bartels (2004), a political scientist. The table displays the mean and standard deviation (shown in parentheses) of annual real income...
-
Each of the following statements indicates that the researcher will be using a one-tailed test. Specify the null and alternative for each situation. a. The national average on a test of...
-
A small college reports that 55% of the student athletes on its campus are females. The college also says that 32% of its athletes are on a basketball team and 23% of its athletes are tennis players....
-
Consider the MOSFET feedback amplifier shown in Figure P12.39. The transistor parameters are \(V_{T N}=0.5 \mathrm{~V}, K_{n}=0.5 \mathrm{~mA} / \mathrm{V}^{2}\), and \(\lambda=0\). Determine the...
-
The transistor parameters for the circuit in Figure P12.42 are: \(h_{F E}=50\), \(V_{B E}(\mathrm{on})=0.7 \mathrm{~V}\), and \(V_{A}=\infty\). Using nodal analysis, determine the closedloop...
-
The parameters of the basic source-follower circuit in Figure P12.41 are \(R_{S}=1.5 \mathrm{k} \Omega, V_{T N}=1.2 \mathrm{~V}\), and \(\lambda=0\). Assume the transistor is biased at \(I_{D Q}=1.2...
Study smarter with the SolutionInn App