A typical atom has a diameter of about 1.0×10^−10 m. Approximately how many atoms are there along a 9.5 −cm line?
A typical atom has a diameter of about 1.0×10^−10 m. Approximately how many atoms are there along a 9.5 −cm line? I got the first one correct, but I got the second one wrong. I put 9.5x10^10 and it wasn't correct. Is it 9.5x10^8?
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A typical atom has a diameter of about 1.0×10^−10 m. Approximately how many atoms are there along a 9.5 −cm line?
Here is the problem A typical atom has a diameter of about 1.0 X 10^-10m
Here is the problemA typical atom has a diameter of about 1.0 X 10^-10m. What it is in inches?How many atoms are there along a 1.0 cm line?( I got the first part but confuse w/ the second part. how do I know how many atoms are there? Please help me)
if the diameter of a newly discovered atom is 3.94 × 10-8cm, how many of these atoms would fit along a 2.78in line
if the diameter of a newly discovered atom is 3.94 × 10-8cm, how many of these atoms would fit along a 2.78in line
A typical atom has a diameter of about 1.0×10^−10m. Approximately how many atoms are there along a 9.5 −cm line?
The single proton that forms the nucleus of the H atom has a radius of approximately...
The single proton that forms the nucleus of the H atom has a radius of approximately 1.0 x 10^-13 cm. The H atom itself has a radius of approximately 52.0 pm. What fraction of the space within the atom is occupied by the nucleu? first convert 52.9 pm to cm 52.9 pm (1cm/1x10611pm) = 5.29 x 10^-10 cm Then find the volumes v proton = 4.19 x 10^-39 cm^3 v of atom 4.65 x 10 ^-28 cm^3 Dividing them gave...
A generation is about one-third of a lifetime. Approximately how many generations have passed since the...
A
generation is about one-third of a lifetime. Approximately how many
generations have passed since the year 0 AD?
The answer is 10^2 generations. I don’t understand how they
got this answer.
We are viewing this in the order of magnitude
Length in Meters (m) Masses in Kilograms (kg) Time in Seconds (s) 10-15 m diameter of proton 10-14 m diameter of large nucleus 10-27 kg- mass of proton 10-10 m diameter of hydrogen atom 10-15 kg mass of bacterium...
(a) About how many microorganisms are found in the human intestinal tract? (A typical bacterial length...
(a) About how many microorganisms are found in the human intestinal tract? (A typical bacterial length scale is one micron 10- m. Assume the intestinal volume is 7 m with a diameter of 4 cm and assume bacteria occupy one hundredth of it.) 1010 O 1014 1017 O 1020 1023 0 (b) Discuss your answer to part (a). Are these bacteria beneficial, dangerous, or neutral? What functions could they serve? This answer has not been graded yet Need Help? Read...
Calculate the mass of an atom of Hydrogen (1.0 g/mol) Silver (107.87 g/mol) Silicon (28.09 g/mol)...
Calculate the mass of an atom of Hydrogen (1.0 g/mol) Silver (107.87 g/mol) Silicon (28.09 g/mol) What are the mass ratios of the elements in these chemical compounds? Ammonia. NH_3 Ethanol, C_2 H_6 O Toluene, C_7 H_8 What now-famous talk did Feynman give to stimulate development in nano-technology? What year did he give it? What less optimistic topic did some of those in the audience suspect was meant by the title of Feynman's talk? Many computers use one byte (8...
1-1 Suppose you want to make a scale model of a hydrogen atom. You choose, for...
1-1 Suppose you want to make a scale model of a hydrogen atom. You choose, for the nucleus, a small ball bearing with a radius of 1.5 mm. The radius of the hydrogen atom is 0.529 × 10−10 m and the radius of the nucleus is 1.2 × 10−15 m. (a) What would be the radius of the model? (b) Suppose that now you want to make a scale model of the solar system using the same ball bearing as...
3) The hydrogen atom in HCl is electrophilic whereas the hydrogen atoms in sodium borohydride are...
3) The hydrogen atom in HCl is electrophilic whereas the hydrogen atoms in sodium borohydride are nucleophilic. Offer a plausible rationale for this difference in reactivity. PROCEDURES 1. Add 2.00 g of 3-dimethylaminopropiophenone hydrochloride, 10 mL of distilled water and a magnetic stir bar to a 100 ml beaker, and stir to dissolve. This is the reaction beaker. 2. Add (with stirring) sufficient 10% NaOH (about 5-6 mL) to bring the solution to pH > 10. The free base will...
ID Problems 46) A piece of silver (Ag) metal weighing 194.3 g is placed in a...
ID Problems 46) A piece of silver (Ag) metal weighing 194.3 g is placed in a graduated cylinder containing 242.0 mL of water. The volume of water now reads 260.5 mL. From these data calculate the density of silver 47) The following procedure was used to determine the volume of a flask. The flask was weighed dry and then filled with water. If the masses of the empty flask and filled flask were 56.12 g and 87.39 g, respectively, and...
A
generation is about one-third of a lifetime. Approximately how many
generations have passed since the year 0 AD?
The answer is 10^2 generations. I don’t understand how they
got this answer.
We are viewing this in the order of magnitude
Length in Meters (m) Masses in Kilograms (kg) Time in Seconds (s) 10-15 m diameter of proton 10-14 m diameter of large nucleus 10-27 kg- mass of proton 10-10 m diameter of hydrogen atom 10-15 kg mass of bacterium...
(a) About how many microorganisms are found in the human intestinal tract? (A typical bacterial length scale is one micron 10- m. Assume the intestinal volume is 7 m with a diameter of 4 cm and assume bacteria occupy one hundredth of it.) 1010 O 1014 1017 O 1020 1023 0 (b) Discuss your answer to part (a). Are these bacteria beneficial, dangerous, or neutral? What functions could they serve? This answer has not been graded yet Need Help? Read...
Calculate the mass of an atom of Hydrogen (1.0 g/mol) Silver (107.87 g/mol) Silicon (28.09 g/mol) What are the mass ratios of the elements in these chemical compounds? Ammonia. NH_3 Ethanol, C_2 H_6 O Toluene, C_7 H_8 What now-famous talk did Feynman give to stimulate development in nano-technology? What year did he give it? What less optimistic topic did some of those in the audience suspect was meant by the title of Feynman's talk? Many computers use one byte (8...
3) The hydrogen atom in HCl is electrophilic whereas the hydrogen atoms in sodium borohydride are nucleophilic. Offer a plausible rationale for this difference in reactivity. PROCEDURES 1. Add 2.00 g of 3-dimethylaminopropiophenone hydrochloride, 10 mL of distilled water and a magnetic stir bar to a 100 ml beaker, and stir to dissolve. This is the reaction beaker. 2. Add (with stirring) sufficient 10% NaOH (about 5-6 mL) to bring the solution to pH > 10. The free base will...
ID Problems 46) A piece of silver (Ag) metal weighing 194.3 g is placed in a graduated cylinder containing 242.0 mL of water. The volume of water now reads 260.5 mL. From these data calculate the density of silver 47) The following procedure was used to determine the volume of a flask. The flask was weighed dry and then filled with water. If the masses of the empty flask and filled flask were 56.12 g and 87.39 g, respectively, and...
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