in the product A• B • C, A has 5 significant figures. B has 2 significant...
Homework Answers
in the product A• B • C, A has 5 significant figures. B has 2 significant figures, and C has 3 significant figure... Then product would have 2 significant figures
In mathematical operations involving significant figures, the answer is reported in such a way that it reflects the reliability of the least precise operation. Let's state that another way: a chain is no stronger than its weakest link. An answer is no more precise that the least precise number used to get the answer. Let's do it one more time: imagine a team race where you and your team must finish together. Who dictates the speed of the team? Of course, the slowest member of the team. Your answer cannot be MORE precise than the least precise measurement.
The following rule applies for multiplication and division:
The LEAST number of significant figures in any number of the problem determines the number of significant figures in the answer.
This means you MUST know how to recognize significant figures in order to use this rule.
Example #1: 2.5 x 3.42.
The answer to this problem would be 8.6 (which was rounded from the calculator reading of 8.55). Why?
2.5 has two significant figures while 3.42 has three. Two significant figures is less precise than three, so the answer has two significant figures.
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in the product A• B • C, A has 5 significant figures. B has 2
significant...
a) A is a quantity with two significant figures. B has 4 significant figures. If C =...
a) A is a quantity with two significant figures. B has 4 significant figures. If C = A + B, D = A*B, and E=B/A What should the number of significant figures of C, D and E be? b) Compare and contrast the following pairs of definitions, one set at a time. For each set of definitions, describe what kind of measurements ( time, positions etc) must you do in order to compute the quantity based on their definitions. Be as...
Significant Figures
all about significant figures, learn to solve any significant figure questions from these study notes, easy to follow and understand.significant figures, rounding numbers, rounding significant figures, rounding, thousands, hundreds, tens digit, ones digit, tenths digit, hundredths, thousandths, decimal place, 1 decimal place, 2 decimal places, 3 decimal places, rounding to the nearest whole number
How many significant figures are in the following quantity: 0.00654 s a. 1 b. 2 c....
How many significant figures are in the following quantity: 0.00654 s a. 1 b. 2 c. 3 d. 4
19) How many significant figures are in 1009.630 mL? A) 3 B) 4 C) 5 D)...
19) How many significant figures are in 1009.630 mL? A) 3 B) 4 C) 5 D) 6 E) 7 F) 8 20) How many different values of my are possible in the 4f sublevel? A) 1 B) 3 C) 5 D) 7 E) 9 F) 11
3. For the circuit shown in the figure, all quantities are accurate to 2 significant figures....
3. For the circuit shown in the figure, all quantities are accurate to 2 significant figures. What is the value of the current I1? A. 0.32 A B 0.61 A C. 0.29 A D. 0.89 A E. 0.11A
To how many significant figures should each answer be rounded? (6.626 x 10-34 J·s) (2.9979 x...
To how many significant figures should each answer be rounded? (6.626 x 10-34 J·s) (2.9979 x 10 m/s) = 4.880610663391 x 10-19 J(unrounded) 4.070 x 10-'m equation A: After rounding, the answer to equation A should have 5 significant figures. 2 significant figures. O 1 significant figure. O 3 significant figures 4 significant figures. equation B: (6.022 x 1023 atoms/mol) (0.935 g) 20.18 g/mol = 2.790 x 10” atoms (unrounded) After rounding, the answer to equation B should have O...
To how many significant figures should each answer be rounded? Equation A: (6.626× 10−34 J⋅s)(2.9979× 108...
To how many significant figures should each answer be rounded? Equation A: (6.626× 10−34 J⋅s)(2.9979× 108 m/s)4.290×10−7 m=4.630322937063×10−19 J(unrounded) After rounding, the answer to equation A should have *2 significant figures. *1 significant figure. *4 significant figures. *3 significant figures. *5 significant figures. Equation B: (6.022× 1023 atoms/mol)(0.795 g)20.18 g/mol=2.372×1022 atoms(unrounded) After rounding, the answer to equation B should have *1 significant figure. *3 significant figures. *5 significant figures. *2 significant figures. *4 significant figures.
What’s the C-C re-measured bond length rounded to 3 significant figures? how would i figure this ...
what’s the C-C re-measured bond length rounded to 3 significant figures? how would i figure this out ? also what’s the C=C re-measured bond length rounded to 3 significant figures??
What is the final temperature in C? Express your answer using two significant figures Review A...
What is the final temperature in C? Express your answer using two significant figures Review A gas with an initial temperature of 820 ° C undergoes the process shown in (Figure 1). You may want to review (Pages 503 - 508) Figure 1 of 1 Submit Request Answer p (atm) 3 Part C How many moles of gas are there? Express your answer using two significant figures 0 V (cm3) 100 2 300 mol
minimum of 3 significant figures please 1.20 1=1 / 2 = 7 1.00 1=5. 1.3 0.80...
minimum of 3 significant figures please
1.20 1=1 / 2 = 7 1.00 1=5. 1.3 0.80 An airplane with a mass of 1000 kg flies at 55 m/s in air with a density of 0.9 kg/m². The wing has an aspect ratio of 5, and has the planform area of 12 m2 a) (10%) Assuming that the wing is the only component that produces lift, calculate the lift coefficient, Cu, in a uniform, horizontal flight. b) (5%) Using the figure,...
How many significant figures are in the following quantity: 0.00654 s a. 1 b. 2 c. 3 d. 4
19) How many significant figures are in 1009.630 mL? A) 3 B) 4 C) 5 D) 6 E) 7 F) 8 20) How many different values of my are possible in the 4f sublevel? A) 1 B) 3 C) 5 D) 7 E) 9 F) 11
3. For the circuit shown in the figure, all quantities are accurate to 2 significant figures. What is the value of the current I1? A. 0.32 A B 0.61 A C. 0.29 A D. 0.89 A E. 0.11A
To how many significant figures should each answer be rounded? (6.626 x 10-34 J·s) (2.9979 x 10 m/s) = 4.880610663391 x 10-19 J(unrounded) 4.070 x 10-'m equation A: After rounding, the answer to equation A should have 5 significant figures. 2 significant figures. O 1 significant figure. O 3 significant figures 4 significant figures. equation B: (6.022 x 1023 atoms/mol) (0.935 g) 20.18 g/mol = 2.790 x 10” atoms (unrounded) After rounding, the answer to equation B should have O...
What is the final temperature in C? Express your answer using two significant figures Review A gas with an initial temperature of 820 ° C undergoes the process shown in (Figure 1). You may want to review (Pages 503 - 508) Figure 1 of 1 Submit Request Answer p (atm) 3 Part C How many moles of gas are there? Express your answer using two significant figures 0 V (cm3) 100 2 300 mol
minimum of 3 significant figures please
1.20 1=1 / 2 = 7 1.00 1=5. 1.3 0.80 An airplane with a mass of 1000 kg flies at 55 m/s in air with a density of 0.9 kg/m². The wing has an aspect ratio of 5, and has the planform area of 12 m2 a) (10%) Assuming that the wing is the only component that produces lift, calculate the lift coefficient, Cu, in a uniform, horizontal flight. b) (5%) Using the figure,...
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