Use the graph below to answer the following questions Cylinder A B C D Volume read on cylinder 25.0 25.0 25.0 25.0 Actual Volume Trial 1 25.9 25.1 27.1 24.9 Which of the graduated cylinders is the most accurate Which of the graduated cylinders is the most precise Actual Volume Trial 2 26.3 25.2 27.1 24.7 Choice A choice C Actual Volume AVERAGE Trial 3 25.4 24.9 27.1 25.0 25.9 25.1 27.1 24.8

Use the graph below to answer the following questions Cylinder A B C D Volume read on cylinder 25.0 25.0 25.0 25.0 Actual Volume Trial 1 25.9 25.1 27.1 24.9 Which of the graduated cylinders is the most accurate Which of the graduated cylinders is the most precise Actual Volume Trial 2 26.3 25.2 27.1 24.7 Choice A choice C Actual Volume AVERAGE Trial 3 25.4 24.9 27.1 25.0 25.9 25.1 27.1 24.8

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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QUESTION 21 A laboratory experiment was done at 137.0°F. Convert this temperature to K using the following equations and round appropriately. Give your answer with one digit after decimal. °C = ( °F – 32 ) x 5/9 K=°C+ 273.15 of Note that the conversions between Celsius, Fahrenheit, and Kelvin temperatures are exact. This means the fractions (5/9 or 9/5) and the numbers 32 and 273.15 are exact. So, use the addition/subtraction rule to determine the correct final answer. Directions: Type your answer only. no units.
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Chemistry A student performed the same experiment as you. The following data was recorded in their lab notebook. Mass of Mg, g Final buret volume, mL Pbarometric, in Hg PH2O, torr T, °C 0.035 41.86 27.02 17.5 20.0 Calculate the student's experimental value of R. Round your answer to four places after the decimal.
口 A www-awu.aleks.com S Zoom A ALEKS - Evelin Vazquez - Learn A Start Page * Start Page O MEASUREMENT AND MATTER Calculating mass density liquid density methyl acetate 0.93 mL g 0.63 mL pentane 0.79 mL acetone g 0.89 mL tetrahydrofuran g 1.6 mL carbon tetrachloride Next, the chemist measures the volume of the unknown liquid as 1925. cm° and the mass of the unknown liquid as 1.80 kg. Calculate the density of the liquid. Round your n, / mL answer to 3 significant digits. O yes Given the data above, is it possible to identify the liquid? O no O methyl acetate pentane acetone If it is possible to identify the liquid, do so. tetrahydrofuran O carbon tetrachloride Explanation Check O 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use 1,789 SEP stv 29
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Density and Specific Gravity 11. Drawing the Graph Mass of Metal Objects vs. Volume Mass (g) Volume (mL) Mass (2) – Mass (1) 12. Density of the metal = g/mL Volume (2) – Volume (1) Questions and Problems Q1 A metal object has a mass of 8.37 g. When it was placed in a graduated cylinder containing 20.0 mL of water, the water level rose to 23.1 mL. What is the density and identity of the metal? (see Table 1) Q2 What is the ma of a solution that has a density of 0.775 g/mL and a volume of 50.0 mL? 45
A 3.24 g object is immersed into a graduated cylinder filled with water. Use the following figure to determine the object's density. Enter just the numerical value without units. - 100 mL -100 mL 06- 06- -80 80 - 70 70 -60 60 -50 50 40 -40 30 -30 20 20 - 10 - 10 Type your answer and submit 25 You are incorrect 8 8 2 8 : ? 8 8 ?
INTERACTIVE EXAMPLE Significant Figures in Mathematical Operations Carry out the following mathematical operations, and give each result with the correct number of significant figures. a. 1.934 x 3.9 b. 26.316 + 8.86 C. 79.2-4.68 1.758 [References] WHERE ARE WE GOING? What information do we need to give each result to the correct number of significant figures? (Select all that apply.) the appropriate conversion factor the rules for significant figures in mathematical operations the given mathematical operation how to convert to scientific notation the rules for rounding your final reported result Check Next) (1 of 4)
please calculate density of the three trials
I am unsure of the ones I got wrong
Please help me and explain why is wrong so I can understand thank u!