in the following calculations, be sure to use an appropriate number of significant figure. 6.497x10^4 m^2...
in the following calculations, be sure to use an appropriate number of significant figure. 6.497x10^4 m^2 divided by 5.1037x10^2 m
Homework Answers
Understanding the concept of significant figures and its application while dividing the numbers.
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in the following calculations, be sure to use an appropriate
number of significant figure. 6.497x10^4 m^2...
Express the following numbers in scientific notation. Make sure you use the correct number of significant...
Express the following numbers in scientific notation. Make sure you use the correct number of significant figures. Part 1 out of 4 (a) 145.75 + (2.3 times 10^-1) = times 10
CHEMWURA Use scientific notation to express the number 355000 to: 1) one significant figure 2) two...
CHEMWURA Use scientific notation to express the number 355000 to: 1) one significant figure 2) two significant figures 3) three significant figures 4) four significant figures 5) six significant figures Submit Show Hints
Perform the following operations and express your answers using the appropriate number of significant figures. 60.0...
Perform the following operations and express your answers using the appropriate number of significant figures. 60.0 kg + 22.1 kg + 0.52 kg 8.75 ms − 750.0 μ s ( 1.50 × 10 4 m/s ) × 120.0 s π ( 0.22 m 2 + 220 cm 2 ) sin 65.0 ∘ × cos 25.05
4. pH Calculations. Show all work and round to the correct number of significant figures. a....
4. pH Calculations. Show all work and round to the correct number of significant figures. a. What is the pH of a 5 x 10-14 M hydronium ion solution? b. What is the pH of a .26 M hydroxide ion solution?
Convert the following units. Make sure that your answer has the proper number of significant figures....
Convert the following units. Make sure that your answer has the proper number of significant figures. a. 4.8 g/cm3 to kg/m3 b. 941 µm to km. Use scientific notation for your answer. (µ is the prefix "micro" and 1 µm = 1 x 10−6 m) c. The speed of light is 2.9989 x 108 m/s. Convert to miles/hour. Use scientific notation in your answer. d. 782 kg to µg. Use scientific notion for your answer.
B. Assorted Questions/Problems Wherever calculations are involved, show answers with appropriate number of significant figures. Include...
B. Assorted Questions/Problems Wherever calculations are involved, show answers with appropriate number of significant figures. Include units wherever necessary. Show your work in the spaces below questions, just the final answers, even when correct, will not earn much credit. 1. At 27°C and 720 Torr, a certain gas sample has a volume of 765 mL. a. What would be its new volume if the temperature and pressure were changed to 57°C and 792 Torr? Hint: Use Combined Gas Law. b....
30 ft Express your answer to one significant figure and include the appropriate units. Im Submit...
30 ft Express your answer to one significant figure and include the appropriate units. Im Submit Previous Answers Request Answer 2, incorrect; Try Again; 5 attempts remaining | Part B 30 mi Express your answer to one significant figure and include the appropriate units. Submit Part C 20 mph Express your answer to one significant figure and include the appropriate units. m/s Submit Part D 8 in press your answer to one significant figure and include the appropriate
Absorbance Concentration (M) Dilution # 1 .79 S.000e-4 M Dilution #2 .54 3.750e-4 M Dilution #3...
Absorbance Concentration (M) Dilution # 1 .79 S.000e-4 M Dilution #2 .54 3.750e-4 M Dilution #3 .31 2.500e-4 M ilution #4 .11 1.250e-4 M Construct a plot of absorbance (y-axis) versus concentration (x-axis) from the data above. Determine the slope of the best-fit line. Make sure to force the best fit straight ine through the origin. Excel has an option to do this (instructions.for Excel 2013.on Windows, instructions.for Excel.2011 on Mac) >Submit your answer to this question to the correct...
.79 Dilution #1 Dilution #2 Dilution #3 Dilution #4 Absorbance Concentration (M) 5.000e-4 M .54 3.750e-4...
.79 Dilution #1 Dilution #2 Dilution #3 Dilution #4 Absorbance Concentration (M) 5.000e-4 M .54 3.750e-4 M 2.500e-4M 1.250e-4 M Construct a plot of absorbance (van) versus concentration (axis) from the data above. Determine the slope of the best-hit line. Make sure to force the best hit straight line through the origin. Excel has an option to do the instructions for Excel 2011 on Windows, instructions for Excel 2011 on Mac). > Submit your answer to this question to the...
.79 Dilution #1 Dilution #2 Dilution #3 Dilution #4 Absorbance Concentration (M) 5.000e-4 M .54 3.750e-4...
.79 Dilution #1 Dilution #2 Dilution #3 Dilution #4 Absorbance Concentration (M) 5.000e-4 M .54 3.750e-4 M 2.500e-4M 1.250e-4 M Construct a plot of absorbance (van) versus concentration (axis) from the data above. Determine the slope of the best-hit line. Make sure to force the best hit straight line through the origin. Excel has an option to do the instructions for Excel 2011 on Windows, instructions for Excel 2011 on Mac). > Submit your answer to this question to the...
Express the following numbers in scientific notation. Make sure you use the correct number of significant figures. Part 1 out of 4 (a) 145.75 + (2.3 times 10^-1) = times 10
CHEMWURA Use scientific notation to express the number 355000 to: 1) one significant figure 2) two significant figures 3) three significant figures 4) four significant figures 5) six significant figures Submit Show Hints
4. pH Calculations. Show all work and round to the correct number of significant figures. a. What is the pH of a 5 x 10-14 M hydronium ion solution? b. What is the pH of a .26 M hydroxide ion solution?
B. Assorted Questions/Problems Wherever calculations are involved, show answers with appropriate number of significant figures. Include units wherever necessary. Show your work in the spaces below questions, just the final answers, even when correct, will not earn much credit. 1. At 27°C and 720 Torr, a certain gas sample has a volume of 765 mL. a. What would be its new volume if the temperature and pressure were changed to 57°C and 792 Torr? Hint: Use Combined Gas Law. b....
30 ft Express your answer to one significant figure and include the appropriate units. Im Submit Previous Answers Request Answer 2, incorrect; Try Again; 5 attempts remaining | Part B 30 mi Express your answer to one significant figure and include the appropriate units. Submit Part C 20 mph Express your answer to one significant figure and include the appropriate units. m/s Submit Part D 8 in press your answer to one significant figure and include the appropriate
Absorbance Concentration (M) Dilution # 1 .79 S.000e-4 M Dilution #2 .54 3.750e-4 M Dilution #3 .31 2.500e-4 M ilution #4 .11 1.250e-4 M Construct a plot of absorbance (y-axis) versus concentration (x-axis) from the data above. Determine the slope of the best-fit line. Make sure to force the best fit straight ine through the origin. Excel has an option to do this (instructions.for Excel 2013.on Windows, instructions.for Excel.2011 on Mac) >Submit your answer to this question to the correct...
.79 Dilution #1 Dilution #2 Dilution #3 Dilution #4 Absorbance Concentration (M) 5.000e-4 M .54 3.750e-4 M 2.500e-4M 1.250e-4 M Construct a plot of absorbance (van) versus concentration (axis) from the data above. Determine the slope of the best-hit line. Make sure to force the best hit straight line through the origin. Excel has an option to do the instructions for Excel 2011 on Windows, instructions for Excel 2011 on Mac). > Submit your answer to this question to the...
.79 Dilution #1 Dilution #2 Dilution #3 Dilution #4 Absorbance Concentration (M) 5.000e-4 M .54 3.750e-4 M 2.500e-4M 1.250e-4 M Construct a plot of absorbance (van) versus concentration (axis) from the data above. Determine the slope of the best-hit line. Make sure to force the best hit straight line through the origin. Excel has an option to do the instructions for Excel 2011 on Windows, instructions for Excel 2011 on Mac). > Submit your answer to this question to the...
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