One mole of atoms consists of 6.02 x 1023individual atoms.If a mole of atoms were spread uniformly over the Earth’ssurface, how many atoms would there be per square meter?
Q: sent each of the following combinations of units in the correct Sl form: (a) lum (o) Niks? and (d)…
A: We know prefixes:- giga (G) = 109 micro (µ) = 10-6 kilo (k) = 103
Q: Although these quantities vary from one type of cell to another, a cell can be 1.9 um in diameter…
A: The outer radius of the cell wall is The thickness of the cell wall is The density of the pure water…
Q: person's blood pressure is measured to be 129±8 mm Hg.129±8 mm Hg. What is the percent uncertainty?…
A: Pressure P = 129±8 mmWe need to determine percentage uncertainity.
Q: If the radius of a CD-ROM is 6 cm, what is the average area taken up by each bit if the total number…
A: The radius of a CD ROM is, The total area of a CD ROM can be given as, The total number of nits…
Q: One cubic centimeter (10 cm3) of water has a mass of 1.0 x 10-3 kg. (a) Determine the mass of 1.0 m3…
A: Given that:For Volume V=1 cm3 or 10-6 m3, mass of water m=1.0×10-3 kgBiological substances are 98%…
Q: A hockey puck (5g) slides horizontally without friction across the ice from position A to E. Draw…
A: We are given the hockey puck which is sliding on horizontal without any friction. Thus there will no…
Q: We are going to make a simple approximation of the number of atoms in the universe. Assume all the…
A: Given that, Density of sun = 1.4 g/cm3 Radius of sun = 7.0×108 m =7.0×1010 cm Mass of the sun =…
Q: An atom of a particular element has a volume of 6.1 x 10" volume in cubic nanometers ? m What is…
A:
Q: Suppose 1.5 cubic meter of oil is spilled into the ocean. Find the area of the resulting slick,…
A: Finding the total area occupied by the spilled oil.Given information:The volume of the oil spilled…
Q: It says that it's not the appropriate number of sig figs.
A:
Q: The diameter of a Cu atom is 2.50pm. How many Cu atoms would need to be placed side-be- side to…
A:
Q: (1) A typical bacterium has a mass of 1 picogram (1 × 10-¹2 gram). Calculate the mass of a mole (or…
A: Mass of bacterium m= 10^-12gm.
Q: A contractor is painting the ceilings. a Small squre bedroom is being painted, along with a large,…
A: Let us take length of wall of common room as x meter longer wall(rectangular) as (x+4) m Below is…
Q: Problem 1: (a) Ã= 3â – 2ŷ, B = 4ây – 5ŷ. Ã · B =? Answer: 22 (b) Ã = -2ô + 4, B = 3â – lŷ. Ả.B =?…
A: Problem 1: (a). Given data A→=3x^-2y^B→=4x^-5y^ Thus, A→·B→=3x^-2y^·4x^-5y^=12+10=22 Thus, A→·B→ is…
Q: -70.25 Põiñtš] DETAILS YINTROSTAT1 6.HW.070. The length of time it takes to find a parking space at…
A: Given:According to the provided information the length of time toFind a parking space follows normal…
Q: H'(0) = H"(0) =
A:
Q: A function fis given by f = 130²2 2.0 where y(8.85± 0.05) and x = (5.11± 0.03) What is the absolute…
A:
Q: By what approximate factor, in powers-of-ten notation, is a human being (height about 2m ) larger…
A: Given the size of human being =2m size of hydrogen atom =10-15m To find how larger the human being…
Q: One mole of Gold (Au) atom has a mass of 197 g. We know that the density of gold is 19.30 g/cm3 in…
A:
One mole of atoms consists of 6.02 x 1023individual atoms.
If a mole of atoms were spread uniformly over the Earth’s
surface, how many atoms would there be per square meter?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- There is relatively little space between atoms in solids and liquids, so that the average density of an atom is about the same as matter on a macroscopic scale - approximately 10^3 kg/m^3. The nucleus of an atom has a radius of about 10^-5m of that of the entire atom, and conatins nearly all mass of the atom. a) What is the approximate density, in kilograms per cubic meter, of a nucleus. b) One possible remnant of a supernova, called a neutron star, can have the density of a nucleus, while being the size of a small city. What would be the raduis, in kilometers, of the neutron star with a mass 10 times that of the Sun? The radius of the Sun is 7*10^8 m and its mass is 1.99*10^30 kgBacteria and other prokaryotes are found deep underground, in water, and in the air. One micron (10-6 m) is a typical length scale associated with these microbes. (a) Estimate the total number of bacteria and other prokaryotes onthe Earth. (b) Estimate the total mass of all such microbes.The world population in billions is approximately P = 7.4e0.010" where t is in years since 2016. Estimate the relative rate of change of population in 2020 using this model and the values of At below. Round your answers to three decimal places. (a) At = 1 The relative rate of change is % per year. the absolute tolerance is +/-0.001 (b) At = 0.1 The relative rate of change is % per year. (c) At = 0.01 The relative rate of change is % per year.
- This was wrong. Can you solve this again with these numbers? What is the root mean square velocity, vrms, for Hydrogen molecules (H2) at 20oC? Hint: How many amu does an H2 molecule contain. 1 amu = 1.67 x 10-27 kg Boltzman's Constant, k = 1.38 x 10-23 J/K Give your answer in m/s to 4 significant figures (NO DECIMALS)the average density of an atom is approximately 103 kg/m3. The nucleus of an atom has a radius about 10-5 times that of the entire atom, and contains nearly all the mass of the atom. What is the approximate density, in kilograms per cubic meter, of a nucleus?What is the square root of 1023? (Hints: 10 is an integer number. Integer numbers are exact, they don't have any uncertainty. The result however is going to be a real number. Computers approximate real numbers using floating point numbers. Floating point numbers have a given number of significant figures or digits. LON-CAPA typically expects 3, 4 or 5 digits. 2 or 1 is not enough, 6 or more is too many. Very large or very small numbers are expressed in scientific or exponential notation like the number above. Numbers in scientific notation are entered to computer software - like LON- CAPA as 1.23E15 or 1.23e15, for example; and 1.23E-15 or 1.23e-15, if the exponent is negative. If both the number and the exponent are negative, then you type -1.23E- 15 or -1.23e-15. On calculators the button is usually labelled as 'EE', but 'E' or 'EEX' or 'Exp' are also possible.)
- For (b), why do we divide the (100Wx8h) by (103Wh)? I get that we need to cancel out the Wh, but why do we divide by 103 specifically?A relationship is found between the number density of cars on a freeway during rush hour, N, and distance. The relationship can be written as k a'N No dr? From this you can conclude that O w = V No O v = No No O v =Needs Complete typed solution with 100 % accuracy.