Please correct answer and don't use hand rating Question 33. Calculate the mass, in amu, of each of the following samples.(a) 281 atoms of LiI(b) 3 million C atoms(c) 8.0e25 sodium atomsd) 8 atoms of cadmium(e) 6.044 X 1023 atoms of mercury

Step 1: : an atomic mass unit (amu) is a unit of mass used to express the mass of atoms and…

Answered: Question 3 3. Calculate the mass, in…

Chemistry for Today: General, Organic, and Biochemistry

9th Edition

ISBN:9781305960060

Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Chapter2: Atoms And Molecules

Section: Chapter Questions

Problem 2.30E

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With the advent of techniques such as scanning tunneling microscopy, it is now possible to write with individual atoms by manipulating and arranging atoms on an atomic surface. a. If an image is prepared by manipulating iron atoms and their total mass is 1.05 1020 g, what number of iron atoms were used? b. If the image is prepared on a platinum surface that is exactly 20 platinum atoms high and 14 platinum atoms wide, what is the mass (grams) of the atomic surface? c. If the atomic surface were changed to ruthenium atoms and the same surface mass as determined in part b is used, what number of ruthenium atoms is needed to construct the surface?
What is the total mass of hydrogen in each of the molecules? CH4 CHCl3 C12H10O6 CH3CH2CH2CH2CH3
What is the total mass (amu) of carbon in each of the following molecules? CH4 CHCl3 C12H12O6 CH3CH2CH2CH2CH3
The element bromine is Br2, so the mass of a Br2 molecule is the sum of the mass of its two atoms. Bromine has two isotopes. The mass spectrum of Br2 produces three peaks with relative masses of 157.836, 159.834, and 161.832, and relative heights of 6.337, 12.499. and 6.164, respectively. (a) What isotopes of bromine are present in each of the three peaks? (b) What is the mass of each bromine isotope? (c) What is the average atomic mass of bromine? (d) What is the abundance of each of the two bromine isotopes?
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Two basic laws of chemistry are the law of conservation of mass and the law of constant composition. Which of these laws (if any) do the following statements illustrate? (a) Lavoisier found that when mercury(ll) oxide, HgO, decomposes, the total mass of mercury (Hg) and oxygen formed equals the mass of mercury(ll) oxide decomposed. (b) Analysis of the calcium carbonate found in the marble mined in Carrara, Italy, and in the stalactites of the Carlsbad Caverns in New Mexico gives the same value for the percentage of calcium in calcium carbonate. (c) Hydrogen occurs as a mixture of two isotopes, one of which is twice as heavy as the other.
In what units are atomic, molecular, and formula mass expressed? Define those units.
By x-ray diffraction it is possible to determine the geometric pattern in which atoms are arranged in a crystal and the distances between atoms. In a crystal of silver, four atoms effectively occupy the volume of a cube 0.409 nm on an edge. Taking the density of silver to be 10.5 g/cm3, calculate the number of atoms in one mole of silver.
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A 2.077-g sample of an element, which has an atomic mass between 40 and 55, reacts with oxygen to form 3.708 g of an oxide. Determine the formula of the oxide (and identify the element).

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Question 3 3. Calculate the mass, in amu, of each of the following samples. (a) 281 atoms of Li I (b) 3 million C atoms (c) 8.0e25 sodium atoms d) 8 atoms of cadmium (e) 6.044 X 1023 atoms of mercury