Suppose that, from measurements in a microscope, you determine that a certain layer of graphene covers an area of 1.80um2. Convert this to square meters.  Express the area in square meters to three significant figures.

Q: Given that 6.02 x 1023 ethanol molecules have a mass of 46.04 g, calculate the number of ethanol…

A: At first, we calculate the volume of the film of ethanol, which is----- 3.08 mm = 0.308 cm 10 cm =…

Q: A cylindrical glass tube 12.7 cm in length is filled withmercury (density = 13.6 g/mL). The mass of…

A: Given, Length of cylindrical tube = 12.7 cm Density of mercury = 13.6 g/mL mass of mercury = 105.5 g…

Q: 4. How sizing down to Nano affect material properties?

A: Since  substances at the nanoscale level have a greater surface-to-volume ratio, which causes them…

Q: (1) Diamond and graphite are two minerals with identical chemical compositions, pure carbon (C).…

A: 1. Given that, diamond and graphite are two materials with identical chemical compositions and pure…

Q: The length of a 262 mm line can also be expressed as: (choose one of the choices) Hint: you must…

A: Given 262 mm  Check each unit one by one in options.

Q: Mercury metal is poured into a graduated cylinder to exactly 22.5 mL. The mercury used to fill the…

A: Given information: Volume = 22.5 mL Mass of empty graduated cylinder = 12.0 g Mass of mercury +…

Q: 1.30μm^2. Convert this to square meters.

A:

Q: The distance between the centers of two oxygen atoms in an oxygen molecule is 1.21 x 10 cm . What is…

A:

Q: An atom of a particular element has a volume of 7.8 x 10-31 m3. What is this volume in cubic…

A: An atom is always neutral because of the equal number of electrons and protons. Electrons are…

Q: A 22.37 g sample of pure sodium was prepared for an experiment how many mL of sodium is this?( the…

A:

Q: Calculate the volume in cubic centimeters occupied by one molecule of water in a beaker of water.…

A: Given that:                    Density of water = 1.00 g/cm3 To find:                  Volume…

Q: Use the References to access important values if needed for A sample of volume 244 cm has a mass of…

A: Mass = 1.04 Kg = 1040 g Volume = 244 cm3 Density = ?

Q: The speed of light is 2.998 × 10° m/s. How far does light travel in 2.0 µs? Set the math up. But…

A: Given : The speed of light = 2.998 X 108 m/s Time = 2.0 µs

Q: The total weight of copper in a vehicle ranges from 15 kilos for a small car to 28 kilos for a…

A: The weight will affect the car acceleration and deacceleration which tells that how better a car can…

Q: If that same 225-g sample of water was frozen, what volume would it occupy, given that the density…

A: We have to determine the volume occupied by the 225 grams of the water sample that has been…

Q: A 1.00 m long beam of stainless steel with a square 2.00 cm×2.00 cm cross section has a mass of 3.02…

A: The length is given as 1m and the cross sectional area is 2 cm x 2 cm. The mass is given as 3.02 kg,…

Q: how many sodium atoms would fit along a straight line exactly one (1) inch long

A:

Q: Determine the mass (in kg) of a silver sphere with a diameter of 8.25 in.

A:

Q: ZSM-5, a catalyst material, has a surface area of 425 m³/g. What is the surface area of this…

A:

Q: ZSM-5, a catalyst material, has a surface area of 425 m/g. What is the surface area of this material…

A: Given: Surface area = 425 m2/g To find: Surface area in cm2/mg We know that, 1 m = 100 cm 1 g = 1000…

Q: Total surface size is dependent on particle size. The smaller the particles are: O smaller the total…

A:

Q: Carbon

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: Jupiter’s mass is estimated to be 1.90 x 1027 kg, and it has a diameter of 142,984 km. Assuming that…

A: Density (d) , mass (m) and volume (V) are related as:

Q: 2. If the standard range of Magnesium in the body is 0.70 to 0.95 mmol/L, convert this value into…

A: A certain amount of univalent ions provides the same number of equivalents.  While the same amount…

Q: Determine the density (in g/cm3) of a metal alloy (a mix of metals) that has a mass of 56.68g and…

A:

Q: Total surface size is dependent on particle size. The smaller the particles are: smaller the total…

A: We know  that as the size of the parcticle decreases, total surface area of the particle increases

Q: In the area of nano-chemistry, particles defined as nanoparticles range in size from 1-2500 nm.  1…

A:

Q: m. How many times can you divide evenly a 893.4 cm long piece of copper wire until it is reduced to…

A: Given : The radius of copper atom = 1.3×10-10 To find : Number of evenly cuts or number of times.…

Q: Direction: Complete the table of the substances below by filling out the necessary information that…

A:

Q: Suppose that, from measurements in a microscope, you determine that a certain layer of graphene…

A: Given that the area covered by graphene is 2.50 μm2.

Q: Given the density of Au is 19.3 g/cm3, determine the mass of gold in an ingot with the dimensions of…

A:

Q: The contents of one 90. lb bag of topsoil will cover 10. square feet of ground to a depth of 1.7 in.…

A: Given : 1 bag of topsoil will cover area = 10 ft2  And the depth covered by 1 topsoil cover = 1.7 in…

Q: A cylindrical glass tube of length 25.75 cm and radius 2 cm is filled with argon gas. The Empty tube…

A: Given: Length is 25.75 cm. Radius is 2 cm. Weight of empty tube is 186.25 g. Weight of tube with Ar…

Q: The distance between two atoms was determined to be 11.4 nm. What is this distance in centimetres?…

A: we know 1 nm = 1.0 * 10-9 m and 1 m = 100 cm => 1 nm = 1.0 * 10-9 m * (100 cm / 1 m) = 1.0 * 10-7…

Q: An example of a semiconductor is ZnS with a particle diameter of 1.8 nanometers. Convert this value…

A: Applying basics relationship between nm to dm and nm to inches.

Q: Which of the following is correct? Gold nanoparticles are non-metals Gold nanoparticles are metals…

A: To find: The correct statement

Q: 26,000 nanoliters = ? dekaliters %3D 26.9 = ? 62 = ? %3D

A: The properties of matter are mainly two types. These are extensive properties and intensive…

Q: An atom of a particular element has a volume of 7.8 x 10-" m . What is this volume in cubic…

A: Given: The volume of atom = 7.8 x 10-31 m3  This value of volume has to be converted into cubic…

Q: What is the density of water in g/cm3?

A: To find: Density of water in g/cm3 =  ?? experimentally

Q: Carry out each of the following calculations, paying special attention to significant figures,…

A: Significant figures can be defined as a total number of digits in number including the last digit…

Q: Calculate the surface area in nm^2 of water contained in a watch glass with a diameter of 9.0cm. The…

A: Given,Diameter = 9.0cmArea = πr2 and diameter 2r

Q: Four research teams measured the density of a new alloy, and what each team wrote in its team…

A: In this question, we are provided with experiment results by to research teams for the measurements…

Q: Suppose the metallic paper clips (which contain iron) had been replaced by magnesium or nickel.…

A: Ferromagnetism It is a property of substance in which metals act as a permanent magnets. Also it…

Q: Suppose some measurements are made on two different homogeneous stones to find out if they are made…

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Q: If you have a coin made of the densest element that weighs 197.07 g, and has a thickness of 4.00 mm,…

A:

Q: Ariel was wondering how much water there was in the sea.  If the total amount of water in the sea is…

A: Given, Volume of water = 3.73 × 108 km3

Q: The distance between two adjacent peaks on a wave is called the wavelength.(a) The wavelength of a…

A: Given: Wavelength of UV light = 247 nm Wavelength of red light = 6760 pm W1 is the wavelength of the…