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A 5-mL pipet has an absolute error of plusminus 0.01mL. Determine the number of significant figures...
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?...
3. If you pipet 10.00 mL of the solution you made in Question #2 into a...
3. If you pipet 10.00 mL of the solution you made in Question #2 into a test tube and then you pipet 10.00 mL of deionized water into the same tube. After stirring, what is the Allura Red concentration of the new solution you've made? Hint: use at least 2 extra significant figures from your answer to question #2 to calculate this answer to avoid rounding errors. Your final answer willl be reported to the correct number of sf. This...
Answer all questions using the correct number of significant figures and correct units. Show all work....
Answer all questions using the correct number of significant figures and correct units. Show all work. (a) Write the balanced molecular and ionic equations, indicating the state of each species in each equation, for the reaction between Mg(s) and HCl(aq): 1. MOLECULAR: TOTAL IONIC: NET IONIC: (b) If 0.050 mol magnesium metal reacts with HCl(aq), how many moles of hydrogen gas are formed? Assume hydrogen to be an ideal gas. 2. Using the definitions for decimeter (dm), centimeter (cm), and...
Perform the following calculations and determine the absolute and percent relative uncertainty. Express each answer with...
Perform the following calculations and determine the absolute
and percent relative uncertainty. Express each answer with the
correct number of significant figures. To avoid rounding errors, do
not round your answers until the very end of your calculations.
Perform the following calculations and determine the absolute and percent relative uncertainty. Express each answer with the correct number of significant figures. To avoid rounding errors, do not round your answers until the very end of your calculations Absolute Uncertainty Number Percent...
Partner's Name Table 2. Calculated Data- Mean, standard deviation, and percent errors for volumes Fill in...
Partner's Name Table 2. Calculated Data- Mean, standard deviation, and percent errors for volumes Fill in the table with the values calculated using Excel. Calculated Value Actual volume Mean Standard Deviation Percent Error Beaker Graduated cylinder Volumetric lask Buret Pipet 2245 m Show correct significant figures and units for all data that require units for full credit. Attach your Excel spreadsheet used to find volume means and standard deviations. A sample spreadsheet with fictitious data is shown in Figure 1...
5. Concentration Calculations. Show all work and round to the correct number of significant figures. a....
5. Concentration Calculations. Show all work and round to the correct number of significant figures. a. The pH of a solution is 12.76. What is the hydronium ion concentration? c. What is the hydroxide ion concentration?
2. Calculate y, and report the result with the correct number of significant figures and the absolute error: y-251(+-1) x 860(+-2) / 1.673(+-0.006) Its question #2 i typed it out you do not need...
2. Calculate y, and report the result with the correct number
of significant figures and the absolute error: y-251(+-1) x
860(+-2) / 1.673(+-0.006)
Its
question #2 i typed it out you do not need the picture
The question is to Calculate Y, and report the result with the
correct number of significant figures and the absolute error:
y=251(+-1) x 860(+-2) / 1.673(+-0.006)
3
sig figs
(10 points) Calculate the pH of a solution that is 0.04 M in NH, and...
Lab Partneris) EXPERIMENT1 Experimental Uncertainty (Error) and Data Analysis TI Laboratory Report 1. Significant Figures (a)...
Lab Partneris) EXPERIMENT1 Experimental Uncertainty (Error) and Data Analysis TI Laboratory Report 1. Significant Figures (a) Express the numbers listed in Data Table 1 to three significant figures, writing the numbers in the first column in normal notation and the numbers in the second column in powers-of-10 (scientific) notation. DATA TABLE1 Purpose: To practice expressing significant figures. 280 528 x0 0.524 15.08 1444 0.0254 83,909 0.060 82.453 000010 2,700,000,000 (b) A rectangular block of wood is measured to have the...
Question: Determine the % relative error for the following quantities: (a) 2.51 - 1.67 (b) (0.504...
Question: Determine the % relative error for the following quantities: (a) 2.51 - 1.67 (b) (0.504 ± 0.002) ÷ (1251 ± 3 L/mole) If there is no uncertainty given for a specific value, assume an absolute error of “1” in the last digit. For example, if there is no uncertainty provided for the value of “0.024”, you will assume the absolute error to be ±0.001 or 0.024±0.001 (i.e. an uncertainty of “1” in the last significant digit) Please show formula(s)...
Show all work to receive full credit. Express answers to the correct number of significant figures. Note: Complete...
Show all work to receive full credit. Express answers to the correct number of significant figures. Note: Complete the table below by calculating the initial SCN and equilibrium Fe(SCN)2+ concentrations for each of the five standard solutions. In addition to the volume of KSCN indicated in the table below each solution contains 5.00 mL of Fe(NO,)a and sufficient 0.050 M HNO3 to produce a total volume of 25.00 mL of solution. 1. Fe3+ +SCN Fe(SCN)2+ 0.00200 M Molarity of KSCN...
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?...
3. If you pipet 10.00 mL of the solution you made in Question #2 into a test tube and then you pipet 10.00 mL of deionized water into the same tube. After stirring, what is the Allura Red concentration of the new solution you've made? Hint: use at least 2 extra significant figures from your answer to question #2 to calculate this answer to avoid rounding errors. Your final answer willl be reported to the correct number of sf. This...
Answer all questions using the correct number of significant figures and correct units. Show all work. (a) Write the balanced molecular and ionic equations, indicating the state of each species in each equation, for the reaction between Mg(s) and HCl(aq): 1. MOLECULAR: TOTAL IONIC: NET IONIC: (b) If 0.050 mol magnesium metal reacts with HCl(aq), how many moles of hydrogen gas are formed? Assume hydrogen to be an ideal gas. 2. Using the definitions for decimeter (dm), centimeter (cm), and...
Perform the following calculations and determine the absolute
and percent relative uncertainty. Express each answer with the
correct number of significant figures. To avoid rounding errors, do
not round your answers until the very end of your calculations.
Perform the following calculations and determine the absolute and percent relative uncertainty. Express each answer with the correct number of significant figures. To avoid rounding errors, do not round your answers until the very end of your calculations Absolute Uncertainty Number Percent...
Partner's Name Table 2. Calculated Data- Mean, standard deviation, and percent errors for volumes Fill in the table with the values calculated using Excel. Calculated Value Actual volume Mean Standard Deviation Percent Error Beaker Graduated cylinder Volumetric lask Buret Pipet 2245 m Show correct significant figures and units for all data that require units for full credit. Attach your Excel spreadsheet used to find volume means and standard deviations. A sample spreadsheet with fictitious data is shown in Figure 1...
5. Concentration Calculations. Show all work and round to the correct number of significant figures. a. The pH of a solution is 12.76. What is the hydronium ion concentration? c. What is the hydroxide ion concentration?
2. Calculate y, and report the result with the correct number
of significant figures and the absolute error: y-251(+-1) x
860(+-2) / 1.673(+-0.006)
Its
question #2 i typed it out you do not need the picture
The question is to Calculate Y, and report the result with the
correct number of significant figures and the absolute error:
y=251(+-1) x 860(+-2) / 1.673(+-0.006)
3
sig figs
(10 points) Calculate the pH of a solution that is 0.04 M in NH, and...
Lab Partneris) EXPERIMENT1 Experimental Uncertainty (Error) and Data Analysis TI Laboratory Report 1. Significant Figures (a) Express the numbers listed in Data Table 1 to three significant figures, writing the numbers in the first column in normal notation and the numbers in the second column in powers-of-10 (scientific) notation. DATA TABLE1 Purpose: To practice expressing significant figures. 280 528 x0 0.524 15.08 1444 0.0254 83,909 0.060 82.453 000010 2,700,000,000 (b) A rectangular block of wood is measured to have the...
Show all work to receive full credit. Express answers to the correct number of significant figures. Note: Complete the table below by calculating the initial SCN and equilibrium Fe(SCN)2+ concentrations for each of the five standard solutions. In addition to the volume of KSCN indicated in the table below each solution contains 5.00 mL of Fe(NO,)a and sufficient 0.050 M HNO3 to produce a total volume of 25.00 mL of solution. 1. Fe3+ +SCN Fe(SCN)2+ 0.00200 M Molarity of KSCN...
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