Solve the problems and write the answers with significant figures. Remember that you will be utilizing...
Solve the problems and write the answers with significant figures. Remember that you will be utilizing the rules of addition for significant figures.
Note: The answer to your addition calculation should be rounded to the same number of decimal places (not digits) as the measurement with the least number of decimal places.
- 7.35 grams + 23.1 grams =
- 0.0035 liters + 2.115 liters =
- 25 mm + 2.75 mm + 30 mm =
Homework Answers
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Solve the problems and write the answers with significant
figures. Remember that you will be utilizing...
CHM123L section Instructor Significant Figures in Calculations Complete the calculations and enter the answers rou...
CHM123L section Instructor Significant Figures in Calculations Complete the calculations and enter the answers rounded to the cocrect number of significant figures. In multiple step calculations, track significant figures but do not round until the end. 1. Round to 2 decimal places: 12 6352 Complete these computations the enter the answer rounded to the correct number of significant figures 2 # of significant figures m answer 102794-619 = 3 #of significant figures in answer iyy4 yrtt 4.29 x 103 +...
3. Solve the following math problems and write their answers with the correct number of significant...
3. Solve the following math problems and write their answers with the correct number of significant figures. 1.23+45.6 11. 8.3-5 III. 3.4 x 2.32 IV. 78.5+0.0021 +0.0099 v. (2.31 x 10)/ (3.1 x 102) 1.23 x 3.456 VI.
15) Significant figures in calculations: report two answers digits displayed, an one, with at least 5...
15) Significant figures in calculations: report two answers digits displayed, an one, with at least 5 Significant hen the answer rounded to the correct number of A c figures (and, of course, display the units) oin weighs 15.79 g and is added to a graduated cylinder with 12.3 ml of water in it, causing the volume to increase to What is the density of the coin?f. units Look up the density of silver, is it possible the coin is silver?...
That is 23.0% where the cursor is. Correct Significant Figures Feedback: Your answer 949.21 m was...
That is 23.0% where the cursor is.
Correct Significant Figures Feedback: Your answer 949.21 m was either rounded differently or used a different number of significant figures than required for this part If you need this result for any later calculation in this item, keep all the digits and round as the final step before submiting your answer. Constants The food calorie, equal to 4186 J, is a measure of how much energy is released when food is metabolized by...
volume of the box in for full credit 11) CALCULATIONS AND PROBLEMS Show all ORSERIE SIGNIFICANT...
volume of the box in for full credit 11) CALCULATIONS AND PROBLEMS Show all ORSERIE SIGNIFICANT FIGURES RULES! in the correct number of What is the temperature recorded by the following thermometer significant figures? (5 ps) 1 inch 2. An unknown substance is soluble in alcohol and cyclohexane but not in water. It appears to melt between 50 and 55 degrees Celsius. When added to 500 ml. of water, a 2.30 sportion causes the volume to rise to 520 mL....
The "best" result is always associated with the measurement with the smallest uncertainty. Measurement B has...
The "best" result is always associated with the measurement with the smallest uncertainty. Measurement B has half the standard uncertainty of measurement A. Therefor e our 68 % coverage probability is associated with a smaller interval (83.44 g o 83.56 g) for measurement B than measurement A (83.38 g to 83.62 g). In other words we have better knowledge about the value of the measurand from measurement B, since we have the same coveroge probability associated with a norrower interval....
There are also different rules for reporting the answer when you add or subtract I) The...
There are also different rules for reporting the answer when you add or subtract I) The ansSwer should have the same number of decimal places as that of the number with the least decimal. Example: 4838 g 10023g 5.3853 g 5.385 g 486 58 g - 421. 65 58 g 66g is 0-4, so round down. is 5-9, so round up. NOTE: IN ADDITION AND SUBTRACTION, DECIMAL POINTS MUST BE LINED UP! Solve the following a) 0.00000313 +17 b) 49670...
3. To make a buffer solution, you can start with a solution of a known number...
3. To make a buffer solution, you can start with a solution of a known number of moles of the base form (A) and add a strong acid until you have neutralized the correct number of moles of the base to have the correct A HA ratio for the buffer you require. For the example using HF in the background information: a. How many moles of the base form (A) are required to start? HINT: The acid form (HA) will...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
please complete the questions has not answering with clarification of the answer to any page Name...
please complete the questions has not answering with
clarification of the answer to any page
Name Lab Section _Date The Mole Concept and Atomic Weights The purpose of this activity is to better understand the concepts of relative atomic mass, counting by weighing and the mole. Percent composition and average atomic mass are included. Part I. Relative Atomic Masses and the Mole - Early Method When John Dalton proposed his atomic theory, he stated that the atoms of each element...
CHM123L section Instructor Significant Figures in Calculations Complete the calculations and enter the answers rounded to the cocrect number of significant figures. In multiple step calculations, track significant figures but do not round until the end. 1. Round to 2 decimal places: 12 6352 Complete these computations the enter the answer rounded to the correct number of significant figures 2 # of significant figures m answer 102794-619 = 3 #of significant figures in answer iyy4 yrtt 4.29 x 103 +...
3. Solve the following math problems and write their answers with the correct number of significant figures. 1.23+45.6 11. 8.3-5 III. 3.4 x 2.32 IV. 78.5+0.0021 +0.0099 v. (2.31 x 10)/ (3.1 x 102) 1.23 x 3.456 VI.
15) Significant figures in calculations: report two answers digits displayed, an one, with at least 5 Significant hen the answer rounded to the correct number of A c figures (and, of course, display the units) oin weighs 15.79 g and is added to a graduated cylinder with 12.3 ml of water in it, causing the volume to increase to What is the density of the coin?f. units Look up the density of silver, is it possible the coin is silver?...
That is 23.0% where the cursor is.
Correct Significant Figures Feedback: Your answer 949.21 m was either rounded differently or used a different number of significant figures than required for this part If you need this result for any later calculation in this item, keep all the digits and round as the final step before submiting your answer. Constants The food calorie, equal to 4186 J, is a measure of how much energy is released when food is metabolized by...
volume of the box in for full credit 11) CALCULATIONS AND PROBLEMS Show all ORSERIE SIGNIFICANT FIGURES RULES! in the correct number of What is the temperature recorded by the following thermometer significant figures? (5 ps) 1 inch 2. An unknown substance is soluble in alcohol and cyclohexane but not in water. It appears to melt between 50 and 55 degrees Celsius. When added to 500 ml. of water, a 2.30 sportion causes the volume to rise to 520 mL....
The "best" result is always associated with the measurement with the smallest uncertainty. Measurement B has half the standard uncertainty of measurement A. Therefor e our 68 % coverage probability is associated with a smaller interval (83.44 g o 83.56 g) for measurement B than measurement A (83.38 g to 83.62 g). In other words we have better knowledge about the value of the measurand from measurement B, since we have the same coveroge probability associated with a norrower interval....
There are also different rules for reporting the answer when you add or subtract I) The ansSwer should have the same number of decimal places as that of the number with the least decimal. Example: 4838 g 10023g 5.3853 g 5.385 g 486 58 g - 421. 65 58 g 66g is 0-4, so round down. is 5-9, so round up. NOTE: IN ADDITION AND SUBTRACTION, DECIMAL POINTS MUST BE LINED UP! Solve the following a) 0.00000313 +17 b) 49670...
3. To make a buffer solution, you can start with a solution of a known number of moles of the base form (A) and add a strong acid until you have neutralized the correct number of moles of the base to have the correct A HA ratio for the buffer you require. For the example using HF in the background information: a. How many moles of the base form (A) are required to start? HINT: The acid form (HA) will...
please complete the questions has not answering with
clarification of the answer to any page
Name Lab Section _Date The Mole Concept and Atomic Weights The purpose of this activity is to better understand the concepts of relative atomic mass, counting by weighing and the mole. Percent composition and average atomic mass are included. Part I. Relative Atomic Masses and the Mole - Early Method When John Dalton proposed his atomic theory, he stated that the atoms of each element...
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