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1.9 Measured coin diameter (cm) 1 Number of coins in stack o.1 Measured stack thickness (cm)...
1) Diameter of a coin is measured as 0.223 cm and its height (thickness) is measured...
1) Diameter of a coin is measured as 0.223 cm and its height (thickness) is measured as 0.024 cm and weight 5.3 grams. Calculate density of the coin and compare it with the density of copper 8.96 gr/cm3 . Could your coin be pure copper? What is the precision for each measurements 2) In a free fall experiment, when you plot height in meters versus time squared as second squared, you obtain your slope as 4.8. What is the unit...
O -9.09 points SerCP9 1.P.021. The diameter of a sphere is measured to be 4.74 in....
O -9.09 points SerCP9 1.P.021. The diameter of a sphere is measured to be 4.74 in. (a) Find the radius of the sphere in centimeters. cm (b) Find the surface area of the sphere in square centimeters. cm2 (c) Find the volume of the sphere in cubic centimeters. cm3 Need Help? Talk to a Tutor AI
3. Modern quarters are clad coins with a copper-nickel alloy sandwiching a pure copper core. The specifications for legal tender quarters established by the U. S. Mint are very exacting 1)...
3. Modern quarters are clad coins with a copper-nickel alloy sandwiching a pure copper core. The specifications for legal tender quarters established by the U. S. Mint are very exacting 1) be 8.33% Ni by mass and the balance Cu 2) weigh 5.670 g 3) have diameter of 24.26 mm 4) a thickness of 1.75 mm Each coin must: Use this information in the following problems a. Use dimensional analysis to calculate the g Ni in YOUR quarter b. Nickel...
1. When measuring the inner and outer diameters of the hollow block, what were the main...
1. When measuring the inner and outer diameters of the hollow block, what were the main sources of experimental error? Group these errors into those that are systematic and those that are random. 2. How could you improve the measurement of the block diameters? In particular, consider how to improve the accuracy of the average value of diameter and how to reduce the uncertainty in the measurement. 3. To how many significant figures can you state the volume of material...
Date Desk Laboratory Instructor Basic Laboratory Techniques 1 Pre-lab Questions You should be able to answer...
Date Desk Laboratory Instructor Basic Laboratory Techniques 1 Pre-lab Questions You should be able to answer the following questions before beginning this experiment. What are the basic units of length, mass, volume, and temperature in the SI system? 1. 2. What decimal power do the following abbreviations represent: (a) M, (b) k, (c) m, (d), and n (e) What is the number of significant figures in each of the following measured quantities: (a) 351 g. 3. (b) 0.0100 mL, (c)...
Counting by Weighing 1 Compatibility Mode- Saved to my Mac esign Layout References Mailings Revie...
it due tonight. please, help me.
Counting by Weighing 1 Compatibility Mode- Saved to my Mac esign Layout References Mailings Review View Emphasis Normal Subee Counting by Weighing: An Avogadro's Number Determination Analogy Bonus :1pt The mole concept of "counting by weighing" is illustrated in the BB analogy.The mole is defined as Avogadro's number of units,i.e. 6.022 x 1023 atoms,ions, or molecules. Avogadro's number has been determined in a number of methods by radioactive decay,electrolytic analysis,X-ray diffraction and monomoleculat layer...
f. 6.022 X 1023 mol 2. Perform the following calculations and report your results to the...
f. 6.022 X 1023 mol 2. Perform the following calculations and report your results to the correct number of significant figures a.212.2+26.77 402.09 6-1 b. 52.331 +26.01-0.998173 ande. (64,04-2.91)/(18.7-17)-11ae5F 24 d. (1.00866 -1.728)/(6.02205 x 10)- -1 195 Xlo e. (6.6262 x 1034, 2.998 x 108)/ (2.54 x 10°)- Lo 1,99745 x 10-25 3. Using dimensional analysis, perform the following conversions and report your results to the correct number of significant figures (centi 102; milli 10: micro 10; nano 10; pico...
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...
i need help with 1-6 i need help with questions 1-6 Question 1 8 pts Choose...
i need help with 1-6
i need help with questions 1-6
Question 1 8 pts Choose the best classification for each of the following substances. a) a substance made from the combination of group 1A element and a group 7A element [Select) > b) [Select) c) [Select) d) C10HSCIN2 (Select) Question 1 Choose the best classification for each of the following substances. a) a substance made from the combination of group 1A element and a group 7A eleme [Select] S...
RECORD ALL DATA IN INK using the correc t number of significant figures and correct units. 1. Mas...
RECORD ALL DATA IN INK using the correc t number of significant figures and correct units. 1. Mass of magnesium sample 2. Volume of hydrogen 3. Temperature of hydrogen 4. Temperature of water 5. Barometric pressure 6. Difference in water levels 7. Aqueous vapor pressure CALCULATIONS: SHOW COMPLETE "SET-UPS" (and the rounding off) FOR ALL CALCULATIONS on the back of this aml 30.46mmg 14: 6cm page or on a separate sheet. Report results to the correct number of significant figures...
1) Diameter of a coin is measured as 0.223 cm and its height (thickness) is measured as 0.024 cm and weight 5.3 grams. Calculate density of the coin and compare it with the density of copper 8.96 gr/cm3 . Could your coin be pure copper? What is the precision for each measurements 2) In a free fall experiment, when you plot height in meters versus time squared as second squared, you obtain your slope as 4.8. What is the unit...
O -9.09 points SerCP9 1.P.021. The diameter of a sphere is measured to be 4.74 in. (a) Find the radius of the sphere in centimeters. cm (b) Find the surface area of the sphere in square centimeters. cm2 (c) Find the volume of the sphere in cubic centimeters. cm3 Need Help? Talk to a Tutor AI
3. Modern quarters are clad coins with a copper-nickel alloy sandwiching a pure copper core. The specifications for legal tender quarters established by the U. S. Mint are very exacting 1) be 8.33% Ni by mass and the balance Cu 2) weigh 5.670 g 3) have diameter of 24.26 mm 4) a thickness of 1.75 mm Each coin must: Use this information in the following problems a. Use dimensional analysis to calculate the g Ni in YOUR quarter b. Nickel...
Date Desk Laboratory Instructor Basic Laboratory Techniques 1 Pre-lab Questions You should be able to answer the following questions before beginning this experiment. What are the basic units of length, mass, volume, and temperature in the SI system? 1. 2. What decimal power do the following abbreviations represent: (a) M, (b) k, (c) m, (d), and n (e) What is the number of significant figures in each of the following measured quantities: (a) 351 g. 3. (b) 0.0100 mL, (c)...
it due tonight. please, help me.
Counting by Weighing 1 Compatibility Mode- Saved to my Mac esign Layout References Mailings Review View Emphasis Normal Subee Counting by Weighing: An Avogadro's Number Determination Analogy Bonus :1pt The mole concept of "counting by weighing" is illustrated in the BB analogy.The mole is defined as Avogadro's number of units,i.e. 6.022 x 1023 atoms,ions, or molecules. Avogadro's number has been determined in a number of methods by radioactive decay,electrolytic analysis,X-ray diffraction and monomoleculat layer...
f. 6.022 X 1023 mol 2. Perform the following calculations and report your results to the correct number of significant figures a.212.2+26.77 402.09 6-1 b. 52.331 +26.01-0.998173 ande. (64,04-2.91)/(18.7-17)-11ae5F 24 d. (1.00866 -1.728)/(6.02205 x 10)- -1 195 Xlo e. (6.6262 x 1034, 2.998 x 108)/ (2.54 x 10°)- Lo 1,99745 x 10-25 3. Using dimensional analysis, perform the following conversions and report your results to the correct number of significant figures (centi 102; milli 10: micro 10; nano 10; pico...
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...
i need help with 1-6
i need help with questions 1-6
Question 1 8 pts Choose the best classification for each of the following substances. a) a substance made from the combination of group 1A element and a group 7A element [Select) > b) [Select) c) [Select) d) C10HSCIN2 (Select) Question 1 Choose the best classification for each of the following substances. a) a substance made from the combination of group 1A element and a group 7A eleme [Select] S...
RECORD ALL DATA IN INK using the correc t number of significant figures and correct units. 1. Mass of magnesium sample 2. Volume of hydrogen 3. Temperature of hydrogen 4. Temperature of water 5. Barometric pressure 6. Difference in water levels 7. Aqueous vapor pressure CALCULATIONS: SHOW COMPLETE "SET-UPS" (and the rounding off) FOR ALL CALCULATIONS on the back of this aml 30.46mmg 14: 6cm page or on a separate sheet. Report results to the correct number of significant figures...
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