1-the volume of an object is 4.16cm3. its mass is 23.05grams. how many significant figures will...
1-the volume of an object is 4.16cm3. its mass is
23.05grams. how many significant figures will its density
have?
2- express the following in scientific notation
a)63.45
b) 0.0046
c) 86,000.01
Homework Answers
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1-the volume of an object is 4.16cm3. its mass is
23.05grams. how many significant figures will...
Significant Figure Questions 1. How many significant figures are in each of the following numbers? 2430...
Significant Figure Questions 1. How many significant figures are in each of the following numbers? 2430 0.0251 3 1.010 x 10 243.0 0.0040 900.0 243 7063.1 2.7000 5.98 x 103 2. Using standard scientific notation express 0.14503 meters in: em with 2 signíficant figures km with 4 significant figures 3. Express the following in scientific notation: 6795 to three significant figures 0.42885 to four significant figures
With 2 significant figures and using scientific notation: a. How many square meters in an acre?...
With 2 significant figures and using scientific notation: a. How many square meters in an acre? b. How many square kilometers in a square mile? c. How many astronomical units in a parsec?
Write the numbers in scientific notation, specify how many significant figures: a.) 105600.0000 b.) 0.006700
Write the numbers in scientific notation, specify how many significant figures: a.) 105600.0000 b.) 0.006700
im not sure how to properly use significant figures and scientific notation in this problem? A...
im not sure how to properly use significant figures
and scientific notation in this problem?
A warehouse is 0.154 miles long, 55.6 yards wide and 20.8 feet high. What is its volume in SI units? Use scientific notation. 1.
1. Express the following numbers in correct scientific notation. 0.007230 -72800 308.70 2. How many significant...
1. Express the following numbers in correct scientific notation. 0.007230 -72800 308.70 2. How many significant figures are there in the following numbers? 650.00 102200 10. 45.034 2.60 x 1022 17.2010 3. Round off the following numbers to TWO significant figures. 34.459 0.07918227 700-2 6.854 x 10- 0.729
3. (1 pts) How many significant figures in the following a) 350.0452 b) 0.004500 4. (2...
3. (1 pts) How many significant figures in the following a) 350.0452 b) 0.004500 4. (2 pts) Convert the following from scientific notation to decimal or vice versa. Use correct sig tigs. a) 3.221 x 10 mm b) 0.000421 ml c) 6.4100 x 10 km d) 66,070 g 5. (2 pts) Mercury in thermometers freeze at -32.5°C. What is the temperature in degrees Fahrenheit? T = 9/5 T +32°F 2.54cm/1") 6. (2pts) Write the equality and conversion factors (ratios for...
1. Perform the following and express the answer in scientific notation with proper significant figures. 1....
1. Perform the following and express the answer in scientific notation with proper significant figures. 1. 10.6 cm_______________ =____________ m 2. 450,000 ug_______________ =____________ g 3. 12 mL_______________ =____________ cL 4. 50 Mton_______________ =____________ ton 5. 4,600 nm_______________ =____________ um 6. 0.058 kg_______________ =____________ dg 7. 2460 uL_______________ =____________ dL 8. 0.015 s_______________ =____________ ms 9. 0.66 um_______________ =____________ mm 10. 0.062 g_______________ =____________ cg 11. 12,500 cL_______________ =____________ L 12. 61,500 nm_______________ =____________ cm 13. 0.0520 kg_______________ =____________ dag...
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 9 The density of acetonitrile, C2H3N, is 0.786 g ml. mass of acetonitrile does this represent? Suppose 1...
QUESTION 9 The density of acetonitrile, C2H3N, is 0.786 g ml. mass of acetonitrile does this represent? Suppose 16.1 ml. of acetonitrile is added to a reaction vessel. What QUESTION 10 Suppose 62.9 ml. of dichloromethane, CH2Cl2, was added to a reaction vessel. Using the density of 1.3266 g ml", how many moles does this represent? QUESTION 11 Consider the following chemical reaction: 4HCI + MnO2 - MnCl2 + 2H2O + Cl2 When 0.494 mol of HCI reacts stoichiometrically with...
Intro --A-Sig-Figs.pdf xercise-A-Sig-Figs.pdf (66.8 KB)| A Alternative formats Pages 1 Instruc Significant Figures and Exponential Notation...
Intro
--A-Sig-Figs.pdf xercise-A-Sig-Figs.pdf (66.8 KB)| A Alternative formats Pages 1 Instruc Significant Figures and Exponential Notation 1. How many significant figures are in each of the following a) 15.81 b) 1,340 c) 900 e) 0.020400 f) 10.02 g) 0.60 2. Write each of the following numbers in proper scientific (exp a) 92.35 vious 8 étv
Significant Figure Questions 1. How many significant figures are in each of the following numbers? 2430 0.0251 3 1.010 x 10 243.0 0.0040 900.0 243 7063.1 2.7000 5.98 x 103 2. Using standard scientific notation express 0.14503 meters in: em with 2 signíficant figures km with 4 significant figures 3. Express the following in scientific notation: 6795 to three significant figures 0.42885 to four significant figures
With 2 significant figures and using scientific notation: a. How many square meters in an acre? b. How many square kilometers in a square mile? c. How many astronomical units in a parsec?
im not sure how to properly use significant figures
and scientific notation in this problem?
A warehouse is 0.154 miles long, 55.6 yards wide and 20.8 feet high. What is its volume in SI units? Use scientific notation. 1.
1. Express the following numbers in correct scientific notation. 0.007230 -72800 308.70 2. How many significant figures are there in the following numbers? 650.00 102200 10. 45.034 2.60 x 1022 17.2010 3. Round off the following numbers to TWO significant figures. 34.459 0.07918227 700-2 6.854 x 10- 0.729
3. (1 pts) How many significant figures in the following a) 350.0452 b) 0.004500 4. (2 pts) Convert the following from scientific notation to decimal or vice versa. Use correct sig tigs. a) 3.221 x 10 mm b) 0.000421 ml c) 6.4100 x 10 km d) 66,070 g 5. (2 pts) Mercury in thermometers freeze at -32.5°C. What is the temperature in degrees Fahrenheit? T = 9/5 T +32°F 2.54cm/1") 6. (2pts) Write the equality and conversion factors (ratios for...
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 9 The density of acetonitrile, C2H3N, is 0.786 g ml. mass of acetonitrile does this represent? Suppose 16.1 ml. of acetonitrile is added to a reaction vessel. What QUESTION 10 Suppose 62.9 ml. of dichloromethane, CH2Cl2, was added to a reaction vessel. Using the density of 1.3266 g ml", how many moles does this represent? QUESTION 11 Consider the following chemical reaction: 4HCI + MnO2 - MnCl2 + 2H2O + Cl2 When 0.494 mol of HCI reacts stoichiometrically with...
Intro
--A-Sig-Figs.pdf xercise-A-Sig-Figs.pdf (66.8 KB)| A Alternative formats Pages 1 Instruc Significant Figures and Exponential Notation 1. How many significant figures are in each of the following a) 15.81 b) 1,340 c) 900 e) 0.020400 f) 10.02 g) 0.60 2. Write each of the following numbers in proper scientific (exp a) 92.35 vious 8 étv
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