Question:
A metal cylinder is exactly 492.0 g. The following are the results from weighing the metal cylinder on two different balances. Balance 1: 491.8, 492.1, 491.9, 492.0 Average = 492.0 Balance 2: 450.7, 451.1, 450.3, 449.9 Average = 450.5
Circle ALL correct answers:
Balance 1 is accurate and precise
Balance 2 is both accurate and precise.
Balance 1 can be used to collect scientific data while
Balance 2 needs calibrating.
Balance 1 is precise but not accurate.
Balance 2 is inaccurate but precise
Question: A metal cylinder is exactly 492.0 g. The following are the results from weighing the...
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5A1: Analyzing Lab Results In the table below are the results from four analytical labs, each of which analyzed the same soil sample for its benzene content. The actual concentration of benzene in the soil is 25 ppb. Reported Concentration of Benzene in a Soil Sample (ppb) Replicate Lab A Lab B Lab C Lab D 1 25 19 25 28 2 29 29 25 27 3 21 30 27 27 4 23 16 25...
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Question 9 4 pts Exactly 1.100 g of CO2(g) was introduced into a 1.00-L flask that already contained some O2 gas. The flask was warmed to 100 °C and the total pressure was found to be 815 mmHg. No chemical reaction occurred between CO2 and 02. Calculate the mass of Oz in the flask. 1.12 g 02 O 0.160 g 02 O 0.754 g 02 O 0.820 g 02 O 0.321 g 02 1.5 pts Question 10...
2. Suppose a random group of 8 patients from Question 1 who had ACL injuries were asked to perform the "Y Balance Test”, however this time the patients performed the test once while standing on their injured leg, and then after a 5 minute rest period were asked to perform the test again while standing on their uninjured leg. The results are recorded below: Patient 1 2 3 4 5 6 7 8 injured leg score 86.3 85.1 79.2 83.7...
2. Suppose a random group of 8 patients from Question 1 who had ACL injuries were asked to perform the "Y Balance Test”, however this time the patients performed the test once while standing on their injured leg, and then after a 5 minute rest period were asked to perform the test again while standing on their uninjured leg. The results are recorded below: Patient injured leg score uninjured leg score 1 2 3 4 5 6 7 8 86.3...
Please provide answers and detailed explanations
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