The radius of a barium atom is 217 pm. How many barium atoms would have to be laid side by side to span a distance of 2.78 mm atoms

Q: What is the difference between a law and a theory?

A: The difference between a law and a theory has to be given.

Q: You find a solid material and you want to find the identity of this sample. You measure the mass of…

A: Mass of the sample is 52.635 g. Volume of water is 466 mL.

Q: A measurement related to the mass and velocity (speed) of particles.

A: Chemistry is the study of matter which has mass and occupy space. Matter is describes in number of…

Q: In Section 1.10, it was stated that 1 mol of sand grains would cover the state of Texas to several…

A: SOLUTION: Step 1: Simple Volume of 1 sand grain = (0.10 mm)3 = 0.001 mm3. 1 mole of sand =…

Q: A car gets 25.6 miles per gallon of gasoline. A full tank of gasoline contains 56.8 L. How many…

A:

Q: The Statue of Liberty in New York City is approximately 305 ft305 ft tall. How many U.S. nickels…

A: By using the general conversion factor that 1mm = 0.00328084feet, the thickness of nickel coin in mm…

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: 2. Show that volt per meter is the same as newton per coulomb.

A: Given:- Show that volt per meter is the same as newton per coulomb.

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: How many major plates does the Earth have?

A:

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: Complete combustion of 16 liters of gasoline consisting of a mixture of heptane gas (C7H16) and…

A: Recall the reaction for complete combustion of a mixture of heptane and isooctane.       C7H16 +…

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: You are asked to perform an experiment to determine the density of square block below. In order to…

A: Concept: Density is defined as mass per unit volume. Density =massVolume

Q: 9.87 g + 0.520 g g 9.607 g – 1.00 g %3D g 7.77 g - 1.4 g %3D g

A: In addition and subtraction,  the minimum significant figures in final answer is same as fewest…

Q: The average dollar bill is 1.8x107 nm long and weighs 0.987 g.  The distance to the sun is 1.5x108…

A: Mole : Mole is the unit by which we measure the amount of substance. One mole is equal to the number…

Q: A student performed an analysis of a sample for its calcium content andgot the following results:…

A: The question is based on the concept of analytical chemistry. we have to explain regarding accuracy…

Q: 20. As an instructor is preparing for an experiment, he requires 425 g phosphoric acid. The only…

A:

Q: A student obtained the data below after performing a similar experiment described in this…

A: Mass of hydrated salt = mass of crucible, cover and hydrate - mass of crucible and cover. So, Mass…

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: initial mass of erlenmeyer flask 123.221 g final mass of erlenmeyer flask 133.203 g mass of water…

A: Mass of water = 10 g Volume of water = 10 mL Density of water = ?

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: Explain the difference between a law and a theory?

A: Various ideas are formulated by the scientists and some are derived experimentally using various…

Q: a chemist has 19.50g alcohol. what is the volume of the sample, what additional information is…

A: The volume of a given liquid is defined as the amount of the space occupied by the liquid that fully…

Q: Suppose you have Avogadro\'s number of mini marshmallows and use them to cover the state of Wyoming…

A:

Q: It is estimated that an adult person contains 6.3 × 103 ppm phosphorus. What mass of phosphorus in…

A: By definition, ppm refers to parts per million.  Therefore, ppm of phosphorus in adult person would…

Q: What is the mass of 4.00 cm^3 of sodium, with a density of 0.97 g/cm^3?

A: MATHEMATICAL TREATMENT OF MEASUREMENT RESULTS Learning Objectives By the end of this section, you…

Q: All of the platinum ever mined = 25 ft3 What is the price of all of the paltinum ever mined?…

A: The conversion of volume of platinum from 25 ft3 into cm3 can be done as,

Q: A piece of aluminum foil is 0.0150 cm thick. Calculate the thickness of the aluminum foil in terms…

A: Thickness of the aluminum foil = 0.0150 cm…

Q: If the average speed of a helium atom at a certain temperature is 1250 m/s, what is the speed in…

A:

Q: Zinc ore (rock) is treated with sulfuric acid producing a solution with undissolved zinc ore and…

A: Density of H2SO4 = 1.153 g/mL Volume of H2SO4 = 50.0 ml  mass of H2SO4 =  Volume x density = 50.0 ml…

Q: a. Sns) + 2Cu°(aq) → Sn + 2C45) (ag) b. Mgs) + Pb"aq) Pb + Mg > (aq) c. 2MN2 + 8H;Om + 10Hg²"(aq) -…

A:

Q: The Empire State building in New York City is approximately 1250 ft1250 ft tall. How many U.S. half…

A: Given : height of building = 1250 ft And thickness of each half dollar bill = 2.15 mm The…

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: The Gateway Arch in St. Louis, MO is approximately 630 ft tall. How many U.S. dimes would be in a…

A: Given the height of Gateway Arch = 630 ft Given the thickness of dime = 1.35 mm  We have to find how…

Q: 8.W 8 What

A: It is C. The reaction rate is halved

Q: In an experiment involving the extraction of essential oils from a plant, 7.5 mL of benzene (C6H6,…

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: ? 239 94 Ри + 96 X + ¿n

A:

Q: When a 39.71 g rock was placed in a graduated cylinder with 18.62 mL of water, the water level rose…

A: Ratio of mass to volume is termed as density which can be represented by a formula as:…

Q: The Gateway Arch in St. Louis, MO is approximately 630 ft630 ft tall. How many U.S. half dollars…

A: While finding the number of any substance always use the following formula. Number = Total…

Q: About two centuries ago, Benjamin Franklin showed that 1 teaspoon of oil would cover about 0.5 acre…

A: The volume of the oil (V) = Area (A) x Thickness (T), or T = V/A  Given: The volume is 5.0 cm3. The…

Q: About two centuries ago, Benjamin Franklin showed that 1teaspoon of oil would cover about 0.5 acre…

A: The volume of the oil (V) = Area (A) x Thickness (T) T = V/A    1 km = 0.6214 mi, so 1 km2 = (0.6214…

Q: Perform the following mathematical function. 51.11 + (0.97/2.414 × 0.32150 × e.-3.25) + 1.52444 3.4…

A:

Q: The radius of a potassium atom is 231 pm. How many potassium atoms would have to be laid side by…

A:

Q: A student performed an experiment of heating a hydrate and obtained the following data.    the mass…

A: Mass of the empty crucible =17.556g -----Equation A Mass of crucible and a hydrate= 21.018g…

Q: In water conversation, chemistry spread a thin certain inert materials over the surface of water cut…

A: Given that: Volume of the inert oil, V = 0.10 mL Area for the oil spreading, A = 42.9 m2 First of…

Q: Chemistry : is the science concerned with composition ,structure and properties of matter as well as…

A: According to the definition of Chemistry , this question can be explained as follows

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.