The molar mass M of a chemical element is its atomic mass expressed in g/molor equivalently in kg/kmol

Q: Atom of a certain element have a diameter of 10^-8 cm. given 1 km=1000m an 1 m =100cm about how many…

A: Given data The diameter of the atom is d = 10-8 cm. The unit relation is given as 1 km = 1000 m and…

Q: atoms ever in contact

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Q: Which of the following vapors/gas will. Give rise to yellow color in a filament lamp;: Helium Neon…

A: When a filament lamp filled with Helium gas, then it produce Pale yellow colour light.

Q: One hundred milliliters of water has a mass of 100 grams. What would be the mass of 50 milliliters…

A: The mass of the 100 ml water is 100 g. By the unitary method, the mass of 1 ml of water is…

Q: One Helium atom weighs 26.2 X 10-7 kg. How many He atoms would weigh 262 kg O a. 10° О. 107 Oc 10- O…

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Q: The average thermal energy for a mono-atomic gas is: (kB is Boltzmann constant and T , absolute…

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Q: A test tube contains 2.61x10-4 m3 of liquid carbon tetrachloride (β = 1240x10-6 (C°)-1) at a…

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Q: A crystal of a chemical sodium weighs 6.43g in air and 2.83g when immersed in a fluid having a…

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Q: A typical atom has a diameter of 1A°. Approximately how many atoms of this diameter would fit on a…

A: Given The diameter of the typical atom is d = 1A°= 1 × 10-8 cm. The length of line is l = 1 cm.…

Q: what is the charge of an atom that has 5 protons 2 neutrons and 3 electrons

A: The charge of an electron is  e (-1.602×10-19 C). The charge of an proton is 1.602×10-19 C . Neutron…

Q: A sample of air has a volume of 250 cm3 at a temperature of 60 C. At what temperature will this…

A: Given value--- Volume = 250 cm3. temperature T1 = 60 degree C. =333.15 K Volume V2 = 0.35 L. We…

Q: What does absorption measure in its applications? a.) The intensity of light emitted from a sample.…

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Q: The number of silicon atoms per m3 is 5 × 1028. This is doped simultaneously with 5 × 1022 atoms per…

A: Given that nI = 1.5 × 1016m–3 Following values are given in the question: Number of silicon atoms, N…

Q: What is true? about matter and energy 1.matter is made of atomes and molecules that are constantly…

A: Matter:- The term "matter" broadly refers to any "physical substance."  Instead of being a…

Q: The type of energy that relates to the periodic motion of atoms in a molecule relative to one…

A: Given:- The type of energy that relates to the periodic motion of atoms in a molecule relative to…

Q: A unit cell of a metal has a volume of 50 cubic angstrom.  If each atom has a volume of 17 cubic…

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Q: 10-16 nm3 = ______km3. A. 10-20 B. 1020 C. 10-43 D. are noble…

A: Given data: 10-16 nm3 Required: The value in km3

Q: The edge length of a unit cell of a crystal is 4.3 Angstrom and an atomic mass of 90 g/mol. If the…

A: The edge length of a unit cell of a crystal is 4.3 Angstrom and an atomic mass of 90 g/mol. If the…

Q: The mass of 6 million molecules of a diatomic gas is 5.1  × 10-19 kg. What is the atomic mass of the…

A: mass of one molecule of gas  = (5.1×10^-19)/(6×10^6) = 8.5×10^-26 kg  Now, mass of one atom of this…

Q: Densities of some common substances g/cm3 Aluminum 2.70 Сopper 8.96 Iron 7.87 Lead 11.4 Water 1.00…

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Q: of sugar was dissolved in glass B and the laser light passes through it? When milk is added in glass…

A: solution of above problem is below:

Q: hat is the mass of 2.0 mol of H20 gas (water vapour). The atomic ma pxygen is 16.0 g/mol and the…

A: Given: The atomic mass of oxygen is 16g/mol and the atomic mass of hydrogen is 1.00 g/mol. To find:…

Q: During Bose-Einstein condensation all the atoms fall back to the _______ a) Ground state b) First…

A: In case of Bose-Einstein Condensation, the temperature of the material remains to be quite low such…

Q: It is prior responsibility of every physicist to take _________ and do __________ in order to…

A: It is basic formulation of scientific method

Q: If an atom has an overall negative charge, the number of electrons must be fewer than the number of…

A: An electron has the negative charge and proton has the positive charge. When the number of electron…

Q: A restaurant put up some neon lamps. “Neon” lamps are not just neon. They have various gases that…

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Q: How many individual atoms are in a water molecule?

A: The molecular formula for water is

Q: 6. In this theory, an increase in surface area relates to more particles being available for…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Determine the value with uncertainty of A + B - 2C  A = 15.4 +- 0.3m B = 17.3 +- 0.2m C = 10.1 +-…

A: Consider the value of Z is

Q: How many times heavier is a Helium atom compared to a Hydrogen atom?

A: Helium contains 2 neutrons and 2 protons whereas hydrogen contains only one proton.

Q: The movement of charged particles in the plasma is supposed to be from: 1. Electrons are guide and…

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Q: Being the great space adventurer that you are you arrive on Mars as part of a scientific expedition.…

A: Number of protons (Z) = 213 Number of neutrons (n) = 73Number of electrons = 213

Q: Suppose you have four cubic meters of copper, two cubic meters of uranium, three cubic meters of…

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Q: The rate at which the body cools is proportional to the difference in temperature of the body and…

A: Given  Temperature of surrounding Ts = 0° C Time taken by body to cool from 200 ° C to 100° C = 40…

Q: The cubit is an ancient unit of measurement for length, where 1 cubit is approximately 444.25 mm.  A…

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Q: Q14: The Fermi temperature (in degrees Celsius) for a metal whose atomic weight is 6.9 gm/mol and…

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Q: The energy equivalent of  0.5g of a substance is

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Q: The efficiency of a light source is the percentage of its energy input that gets radiated as visible…

A: Photons with greater energy are absorbed. Since, the efficiency of a light source is the percentage…

Q: Simplify the following and leave your answers in index form: 78÷73 (72)6 78*72*7/74

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Q: if radius of manganese ion is 66ppm nd fluoride ion is 134 ppm then what is the shortest distance…

A: Solids are arranged in a order in the whole volume. The order can be regular (crystalline). It can…

Q: An atom fits in the nanoscale. It is more or less _________. *

A: The nanoscale is in the range of approximately 1 to 100 nm. The size of an atom is very small. A…

Q: Which of the following is equivalent to 1 a.m.u? [A] 1/12th of the mass of the helium atom [B]…

A: One of the most used unit for mass of atomic scale substances is known as a.m.u or atomic mass unit.…

Q: The active element of a certain laser is made of a glass rod 30cm long and 1.5 cm in diameter.assume…

A: Length of the glass rod, Lo=30 cm=30×10-2 m Diameter of the tube, Do=1.5×10-2 m Therefore, radius…

Q: The bulk properties of a material can be inferred by measuring the strength of the electrostatic…

A: The electric and magnetic force determine the properties of atom and bulk matter.

Q: Which of these are matter? 1. atoms 2. molecules 3. energy (A) 1 only (B) 1 and 2 (C) 2 and 3 (D) 1,…

A: Matter is something which is occupying a fixed or definite amount of volume and even have a definite…