An atom of rhodium (RhRh) has a diameter of about  2.7×10−8cm2.7×10−8cm. What is the radius of a rhodium atom in angstroms (ÅÅ)?

Q: The mass of a proton is 1.67*10^-27kg. What is the mass of a proton in gigagrams?

A: Kilogram is a small unit while gigagrams 1kg=10-6gigagram So 1.67×10-27kg have 1.67×10-27×10-6…

Q: What mass of iron (d = 7.874 g/cm') does a 2.0 in x 1.5 in x 10.0 in sample have?

A: Given  density of Iron = 7.874 gram/ Cm3 Volume = 2.0 inch × 1.5 inch × 10 inch 1 inch   = 2.54 Cm…

Q: A perfect cube of a gold metal was found to have a mass of 45.85 g. The density of the gold is 19.3…

A: Given density = 19.3 g/cm3 mass = 45.85 g

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 = 9.0 cm

Q: The ionic radius of a sodium ion is 2.27 angtroms. What is this lenth in um?

A: The ionic radius : The ionic radius the distance from nucleus to the outermost electronic shell.

Q: The radius of a lead atom is 175 pm. How many lead atoms would have to be laid side by side to span…

A: Given: Radius of each lead atom = 175 pm = 175 X 10-12 m                          (Since 1 m = 1012…

Q: A hypothetical metal has a theoretical density of 11.92 g/cm³. This metal adopts a cubic crystal…

A: Given,  Density of the solid = d = 11.92 g/cm3  Edge length = a = 0.387 nm  Radius = 0.137 nm…

Q: The density of copper is 8.94 g/cm°. What is the volume of copper in a 420 g sample? O 378 cm3 O 65…

A: Density of a substance is the ratio of mass to volume. The density is usually indicated by the…

Q: 1) i) iv) Which two substances could be metals? Which substance could be nitrogen? Which substance…

A: Hello. There are multiple subparts to the question. The first three subparts have been solved. To…

Q: The single proton that forms the nucleus of the hydrogen atom hasa radius of approximately 1.0 *…

A: Solution- when 1 m = 100 cm   and 1 m = 1012 pm   now, proton radius =1.0×10-13cm…

Q: 32. In which group do all the elements have similar chemical properties? a) P, S, Cl b) Ag, Cd, Ar…

A: In which set of element have similar chemical properties ?

Q: When a piece of aluminum is placed in a 25-mL graduated cylinder that contains 10.5 mL of water, the…

A: Density is given by the ratio of mass of the substance to that of the volume.

Q: What substance is closest to 1.47 g/cm^3?

A:

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: A hypothetical metal has a theoretical density of 12.05 g/cm3. This metal adopts a cubic crystal…

A: As given crystal is cubic crystal. So atoms are present only at the corners of the cube having 1/8…

Q: Determine the mass (g) of a sample titanium that has a density of 4.5 x 103 kg/m3 and a volume of…

A: Since density is given by  density = mass / volume  volume given = 38.8 x 1010 cm3  Since 1 m = 100…

Q: What is an element? A. A substance that can be separated by physical means B. A substance that…

A: An element is a pure substance consisting only of atoms that all have the same numbers of protons in…

Q: Given the density of silver (10.5 g/cm³) and gold (19.3 g/cm³) in Group IB/11, estimate the density…

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: A cube of an unknown metal measures 1.61 mm on one side. The mass of the cube is 36 mg. Which of the…

A:

Q: The radius of a aluminum atom is 143 pm. How many aluminum atoms would have to be laid side by side…

A: Given : Radius of Aluminium atom = 143 pm And length of line to be made = 4.38 mm  Since 1 pm =…

Q: Gold (Au) has a density of 19.32 g-cm-3. If a spherical gold nanoparticle has a diameter of 50 nm…

A: Density of Gold nanoparticle is 19.32 g/cm3 and its volume is 7*104 nm3.

Q: A hypothetical metal has a theoretical density of 11.89 g/cm3. This metal adopts a cubic crystal…

A:

Q: A hypothetical metal has a theoretical density of 11.53 g/cm3. This metal adopts a cubic crystal…

A: In this question we use the formula of density of crystal (d) d = z M/NA a^3 Here density in g/cm^3…

Q: 4. Which of the following is NOT found in the same period as the others? A chromium (Cr) B tungsten…

A: 4) Which of the following not found in same period ?

Q: The black hole in the M82 galaxy has a mass about 500 times the mass of the Sun. It has about the…

A: Given information: Mass of the sun = 1.9891 ×1030 kg Volume of moon = 2.1968 × 10 10 km3

Q: What is the symbol for the element that is in group VIIA(17) and period 3?   What is the symbol…

A:

Q: Determine the volume of a sample of copper in (m³) with a mass of 2.2 x 105 tons and a density of…

A: Density of the solution is equal to ratio of mass to volume of solution. Density=MassVolume Unit of…

Q: What is the edge length of a cube whose mass for aluminum is 3.44g? Density is 2.70 g/cm3 and Volume…

A: In this question, we want to determine the value of edge length.  You can see details Solution how…

Q: Student K was asked to determine whether his bar was made of pure palladium.  II) Student S was…

A:

Q: 2. You can identify a metal by carefully determining its density. A 2.166 g piece of an unknown…

A: Density of a substance is defined as its mass per unit volume.  Mathematically,  Density(d) =…

Q: 3) Na is present in seawater as 1.25 g Na/kg seawater. What volume of seawater as in liters(L),…

A:

Q: Which one of the following is not included as s block elements?  A)Sodium B)Calcium C)Barium…

A: Given,  A)Sodium B)Calcium C)Barium D)Copper

Q: 4R) The recommended adult dose of Elixophyllin®, a drug used to treat asthma, is 6.00 mg/kg of body…

A: Given: Mass of drug = 6.00 mg/kg mass of person = 134lb To find: The mass of dose in mg

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: 1. You are tasked to make an alternative disinfectant for corona virus. Which materials are you…

A: Disinfectant is necessary tool to combat corona virus. In disinfectant some chemicals have to be…

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

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

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

A: Find volume of atom in cubic nanometre

Q: B C +1 n=1 D n=2 n=3 n=4 n=5 n=6 O A O B O C O D

A: Use formula from Bohr model to find energy- E = -2.17×10-18[(1/nf)2-(1/ni)2 ] Where nf is the…

Q: What mass of potassium gold cyanide, KAu(CN)2, contains 311 g (10 ounces) of gold?

A:

Q: large piece of jewelry has a mass of 132.6 g. A graduated cylinder initially contains 48.6 mL water.…

A: Density ρ is defined as the ratio of mass of the substance to its volume. The cylinder contains a…

Q: Determine the volume ton = 2205 Ibs, 1 lb 1 %3D %3D

A: Given mass of Cupper=2.2g Density =8.96g÷cm3 Volume =mass÷density Volume= 2.2÷8.96= 0.24cm3…

Q: Using the mass of the protonfrom Table 2.1 and assuming its diameter is 1.0 * 10-15 m,calculate the…

A: Given: Diameter of proton assumed is 1.0*10-15 m

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

A: Distance is measured in different units. For example nanometre (nm), picometre (pm), centimetre…

Q: What is the mass of phosphorus in a 45 kg person? mass of P = %3D TOOLS x10

A:

Q: A bakery sells hollow chocolate spheres. The larger diameter of each sphere is 4 cm. The thickness…

A: Answer:- this question is answered by using the simple concept of calculation of volume and then…

Q: If the denisty of Platnuim is 19.32 g/cm3 what could the dimnesions of a cube be that weighted 1.00…

A: