Physics of Everyday Phenomena
9th Edition
ISBN: 9781259894008
Author: W. Thomas Griffith, Juliet Brosing Professor
Publisher: McGraw-Hill Education
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Question
Chapter 18, Problem 10CQ
To determine
Whether the law of definite proportions can be explained by a model in which different atoms of the same element have widely varying masses.
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The nucleus of an atom can be modeled as several protons and neutrons closely packed together. Each particle has a mass of 1.67 ✕ 10−27 kg and radius on the order of 10−15 m.
(a) Use this model and the data provided to estimate the density of the nucleus of an atom.
kg/m3
(b) Compare your result with the density of a material such as iron
(ρ = 7874 kg/m3).
What do your result and comparison suggest about the structure of matter?
How many particles are present in a closed container if the energy it contains is 97940.99J, and the diatomic oxygen gas is moving at a velocity of 58.55m/s? Use only the whole number for the value of atomic mass unit. Express your answer in proper scientific notation.
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How many particles are present in a closed container if the energy it contains is (97505.45)J, and the diatomic oxygen gas is moving at a velocity of (57.41)m/s? Use only the whole number for the value of atomic mass unit. Express your answer in proper scientific notation.
Chapter 18 Solutions
Physics of Everyday Phenomena
Ch. 18 - Prob. 1CQCh. 18 - Prob. 2CQCh. 18 - Prob. 3CQCh. 18 - Prob. 4CQCh. 18 - Prob. 5CQCh. 18 - Prob. 6CQCh. 18 - Prob. 7CQCh. 18 - Prob. 8CQCh. 18 - Prob. 9CQCh. 18 - Prob. 10CQ
Ch. 18 - Prob. 11CQCh. 18 - Prob. 12CQCh. 18 - Prob. 13CQCh. 18 - Prob. 14CQCh. 18 - Prob. 15CQCh. 18 - Prob. 16CQCh. 18 - Prob. 17CQCh. 18 - Prob. 18CQCh. 18 - Prob. 19CQCh. 18 - Prob. 20CQCh. 18 - Prob. 21CQCh. 18 - Prob. 22CQCh. 18 - Prob. 23CQCh. 18 - Prob. 24CQCh. 18 - Prob. 25CQCh. 18 - Prob. 26CQCh. 18 - Prob. 27CQCh. 18 - Prob. 28CQCh. 18 - Prob. 29CQCh. 18 - Prob. 30CQCh. 18 - Prob. 31CQCh. 18 - Prob. 32CQCh. 18 - Prob. 33CQCh. 18 - Prob. 34CQCh. 18 - Prob. 35CQCh. 18 - Prob. 1ECh. 18 - Prob. 2ECh. 18 - If 112 g of silicon (Si) react completely with 64...Ch. 18 - Prob. 4ECh. 18 - Prob. 5ECh. 18 - How many electrons would be required to produce 12...Ch. 18 - Prob. 7ECh. 18 - Prob. 8ECh. 18 - Prob. 9ECh. 18 - Prob. 10ECh. 18 - Prob. 11ECh. 18 - Prob. 12ECh. 18 - An electron beam in a cathode-ray tube passes...Ch. 18 - Prob. 2SPCh. 18 - Prob. 3SPCh. 18 - Prob. 4SP
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- Explain why patterns observed in the periodic table of the elements are evidence for the existence of atoms, and why Brownian motion is a more direct type of evidence for their existence.arrow_forwardWhich formula may be used for the momentum of all particles, with or without mass?arrow_forwardWhat is Pauli's exclusion principle? Explain the importance of this principle for the understanding of atomic structure and molecular bonding.arrow_forward
- How do the allowed orbits for electrons in atoms differ from the allowed orbits for planets around the sun? Explain how the correspondence principle applies here.arrow_forward5. The difference in energy between allowed oscillator states in HBr molecules is 0.310 eV. What is the oscillation frequency of this molecule? This is not and will not be gradedarrow_forwardThe nucleus of an atom can be modeled as several protons and neutrons closely packed together. Each particle has a mass of 1.67 × 10–27 kg and radius on the order of 10–15 m. (a) Use this model and the data provided to estimate the density of the nucleus of an atom. (b) Compare your result with the density of a material such as iron. What do your result and comparison suggest about the structure of matter?arrow_forward
- 9. What is the approximate mass of an oxygen molecule, O2, if the atomic mass of oxygen is 15.9994 u?arrow_forwardThe Periodic Table of the Elements is useful for revealing patterns and trends in the elements. Which statement accurately describes a pattern in the size of atomic radii in the Periodic Table of the Elements? a.) Atomic radii increase from left to right across a period and decrease from top to bottom in a group. b.) Atomic radii increase from left to right across a period and increase from top to bottom in a group. c.) Atomic radii decrease from left to right across a period and decrease from top to bottom in a group. d.) Atomic radii decrease from left to right across a period and increase from top to bottom in a group.arrow_forward(3) The Moon is approximately 400,000 km from the Earth. An atom of a certain element has adiameter of 4 X 10-8 cm. Given 1 km = 1,000 m and 1 m = 100 cm, about how many atoms ofthis element can be lined up between Earth and Moon?arrow_forward
- I need help with the third part of this question. I came up with the answer 55.5, but it is incorrect. (c) identity of the ion, assuming it's an element (Use only the masses of elements in their most common form as listed on the periodic table of elements.)arrow_forwardthe 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?arrow_forwardA certain atom has a radius of 2.7 X 10-1 nm and a mass of 2.21 X 10-22 g. What is the density of the atom? Assume that the atom is a sphere. The volume of a sphere is given by: ?=43??3V=43πr3 where r is the radius and ?=3.14arrow_forward
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