A newly found element, Savannium, is composed of three different isotopes. In every sample, there is 15.79% of element with a mass of 13.76 amu, 64.98% of element with a mass of 15.76 amu, and 19.23% of element with a mass of 16.76 amu. Calculate the average atomic mass of this element. Report your answer with two digits after the decimal place and include the appropriate units

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A: Given: Mass of silicon=1.00 g Mass of 1 mole of silicon=28.0855  g

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Q: Complete the table. Element Mass Moles Number of Atoms Na 38.5 mg C 1.12 V 214 Hg 1.44 kg

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: In what mass units are the average atomic mass and molecular mass expressed? What is the value of…

A: The average atomic mass and molecular mass is expressed in atomic mass unit (amu). It is defined as…

Q: An unknown element X has the following isotopes: 140X (89.00% abundant) and 142X(11.00% abundant).…

A: Since,         Average Atomic mass=Σass of Isotope×% of Isotope100

Q: Which subatomic particle(s) are found in the nucleus of the atom? Enter the subatomic particle or…

A: To find : Which subatomic particles are found in the nucleus of the atom.

Q: An alloy is 12.8% copper by mass in tin. Copper makes up what percentage of the atoms in this sample

A:

Q: An unknown element X has the following isotopes: ¹⁴⁰X (89.00% abundant) and ¹⁴²X(11.00% abundant).…

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Q: What is the mass of 1.6x10^21 argon atoms?

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Q: What is a proton ? what is a chemical?

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Q: What mass of nickel would contain 5.66 x 1021 atoms?

A:

Q: An unknown element X has the following isotopes: 25X (80.5% abundant) and 27X (19.5% abundant). What…

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Q: An unknown element X has the following isotopes: ²⁵X (80.5% abundant) and ²⁷X (19.5% abundant). What…

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Q: The element X has isotopes. The masses (atomic mass unit) and % abundances of the isotopes are given…

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Q: Calculate the mass, in grams, of sample.  7.9x10^21 uranium atoms

A: GIVEN: To solve: Mass in grams of uranium atom sample=?

Q: If a sample of gallium contains 1.56×104 atoms of gallium-69 and 1.02×104 atoms of gallium-71, what…

A: Given,1.56×104 atoms of gallium 69.1.02×104 atoms of gallium 71.

Q: On another planet, the isotopes of titanium have the given natural abundances. Isotope 46 Ti 48 Ti…

A:

Q: 23 atoms of magnesium? 1. How many moles of magnesium is 5.61 x 10

A: moles of any species is defined as when given mass of species divided by its molar mass

Q: The element silver has two naturally occurring isotopes: 109Ag and 107Ag with a mass of 106.905 amu.…

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Q: A 67.2-g sample of a gold and palladium alloy contains 2.49x10^23 atoms. What is the composition (by…

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Q: Determine the mass of 5.0x10^23 tungsten (w) atoms

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Q: How many moles of aluminum do 1.42 x 10^24 aluminum atoms constitute?

A: 1 mol of any atom has 6.023 ×1023 number of atoms .

Q: On another planet, the isotopes of titanium have the given natural abundances. Mass (u) Isotope 46TI…

A:

Q: This is the average of the atomic masses of all the different isotopes in a sample.

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Q: [References] Use the References to access important values if needed for this question. If a sample…

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Q: Assume that for the following molecules, carbon=12 amu, hydrogen= 1 amu, nitrogen= 14 amu and…

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Q: Bronze medals are made from an alloy composed of 93.8% copper, 5.1% tin, and 1.1% zinc (measured by…

A: Given : Mass % of copper = 93.8 % mass % of tin = 5.1 %  and mass % of Zinc = 1.1 % Assuming 100 g…

Q: What is the mass of 1.6 x 1021 neon atoms?

A:

Q: Calculate the mass, in kg, of sample. 1.22x10^27 manganese atoms

A:

Q: The average mass of one atom of carbon is 2.00 x 10 –23 g. How many carbon atoms are present in a…

A: Given:Mass of one atom of carbon = 2.00 x 10 –23 g.Total mass of sample of carbon = 40.0 g.

Q: A 67.2 g sample of a gold and palladium alloy contains 3.07×1023 atoms . What is the mass…

A: Given : Mass of sample = 67.2 g And total number of atoms = 3.07 X 1023 atoms Assuming the moles of…

Q: An element X has two common isotopes: X-57 and X-59. If the average atomic mass of element X is…

A: An element has two isotopes : X-57 and X-59 Average Atomic mass = 58.876 amu

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.