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

Q: A mass of 145 g of a certain element is known to contain approximately 3.64 x1024 atoms. What is the…

A: Let the molecular weight of the element is M gm/mol.  Moles = weight/mol. wt.  Or, moles = 145/M  We…

Q: How many moles are there in 2.75 x 10^24 atoms of copper?

A: we know that one mole of copper contain Avogadro's number of atoms Avogadro's number= 6.023 × 1023

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: How much does 4.28 x 10 21 atoms of Nickel weigh?

A: We know that, one mole of any substance contains 6.022 × 1023 atoms. We can determine the weight by…

Q: A mass of 41.6 g of an element is known to contain 6.59 x 1023 atoms. What is the atomic mass of the…

A:

Q: What is the mass of 4.97×1021 platinum atoms?

A: Mass has many units. Its SI unit is Kg. On atomic level, atomic mass unit, molar mass, molecular…

Q: Determine the number of atoms in a 1.00 mg sample of Carbon-14?

A:

Q: A 64.36 g sample of XO2 contains 25.79 g of oxygen atoms. What is element X?

A: Given,      A 64.36 g sample of XO2 contains 25.79 g of oxygen atoms . To determine the identity…

Q: How do I calculate the mass of 6.20 x 10^22 tungsten atoms?

A: Given : Number of tungsten atoms = 6.20 x 10^22  Molar mass of tungsten = 183.84 g/mol

Q: Cesium has 39 known isotopes ranging from mass 112 to 151. If a sample of cesium containing only…

A: The average atomic mass of any particular element which exists in two or more isotopic forms, can be…

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

A: A proton is a subatomic particle which is present in the nucleus of an atom along with the neutrons.…

Q: An unknown element X has the following isotopes: 52X (88.00% abundant), 4⁹X (8.00% abundant), 5⁰X…

A: The average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by…

Q: Titanium has five common isotopes: 46 Ti (8.0%), 47 Ti (7.8%), 48Ti (73.4%),49Ti (5.5%), 50Ti…

A:

Q: Argon has the following isotopic abundances: 35.967546 amu 0.3365% 37.962732 amu 0.0632% 39.962383…

A: Given,

Q: An atom consists of two isotopes, the first with an atomic mass of 15.8967 amu and the second with…

A: Atomic mass of first Isotope = 15.8967 amu Atomic mass of second Isotope = 16.8245 amu Average mass…

Q: What is the mass of a mole of electrons if one electronhas a mass of 9.11 × 1 0 -28 g?

A: Because, 1 mole=6.022×1023 molecules/particles Therefore, 1 mole of electron=6.022×1023 electrons

Q: How to convert from mass percent to mass of an element ?

A: We can calculate mass of element if we have have information about mass percent and total mass.

Q: The total number of atoms in 2FrCN

A: Total Number .of atom represents  Number of sum of all the element present in a given Compound .

Q: How many atoms are contained in a block of aluminum metal measuring 4.0 mm x 9.0 mm x 11 mm? The…

A:

Q: Calculate the precise mass of each ion to five significant figures. Unless otherwise indicated, use…

A: Given is the isotope of C which has a molar mass of 13 u the molar mass of a most abundant isotope…

Q: Natural gallium, which has an atomic weight of 69.7230 amu, consists of gallium-69 and gallium-71…

A:

Q: Consider two compounds. Compound A contains 2.77 g of phosphorus and 9.53 g of chlorine. Compound B…

A: Given,Mass of Phosphorus in compound B =11.9gMass of chlorine in compound B =40.9g

Q: Determine the mass (in grams) of aluminum present in 1.07 grams of Al2S3? Do not type units into…

A:

Q: An element has three isotopes, A, B, and C. Percent abundance of the isotopes A and C are 60 % and…

A: The percent natural abundance of isotope A is 60%. The percent natural abundance of isotope C is…

Q: Calculate the amount of carbon (in moles) contained in a 2.65 g pencil “lead.” (Assume that the…

A: The mole is an amount unit similar to familiar units like pair, dozen, gross, etc. It provides a…

Q: Element XYZ has two isotopes: XYZ-79 (mass =69.9943 amu)  and XYZ-81 (mass=80.9893 amu). If the…

A: Given,Element : XYZ                                                 XYZ-79…

Q: A 0.933 g sample of Nickle metal is heated in the presence of nitrogne gas forming 1.081 grams of a…

A:

Q: Calculate the precise mass of each ion to five significant figures. Unless otherwise indicated, use…

A: The ion given is – [CH3Br] + No isotope is indicated. Hence taking the most abundant isotopes of…

Q: Determine the mass (in grams) of aluminum present in 1.08 grams of Al2S3?

A: Molar mass of the elements is equal to the sum of the atomic masses of all the elements. Molar mass…

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

A:

Q: Calculate the precise mass of each ion to five significant figures. Unless otherwise indicated, use…

A: An atom is the basic and fundamental unit of matter. An atom consists of electron and the nucleus in…

Q: A mass of 7.86 g of an element is known to contain 2.31 x 1023 atoms. What is the atomic mass of the…

A: In this question given  Number of atom , and mass of elements

Q: what is the mass of 7.15 x 10^22 aluminum atoms?

A: Given, Number of Aluminium atoms = 7.15×1022

Q: a certain compound is made up of 2 chlorine atoms, one carbon atom, and one oxygen atom. What is the…

A: A chemical formula is defined as the composition of elements present in the compound in a fixed…

Q: How many moles of neon would there be in 7.59 x 1025 neon atoms?

A: Avogadro's number (N) = 6.022 x 1023 atoms/mole No of moles = No of atoms / N                    =…

Q: Naturally occurring chlorine is composed of two stable isotopes namely Cl 35 (75.76 %) and Cl 37…

A:

Q: Consider the following data for the hypothetical element Smileonium, So. What is the average atomic…

A:

Q: How many moles of neon would there be in 7.59 x 1025 neon atoms?

A: Given that : Atoms of neon = 7.59 x 1025 atoms Moles of neon =?

Q: How many atoms are there in 77.9 g of selenium? You will need to divide your answer by 1.0X10^23

A:

Q: What is the mass ratio of chlorine to phosphorus in Compound B?

A: Mass of chlorine in compound B is 40.9gMass of phosphorus in compound B is 11.9g

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: Calculate the precise mass of each ion to five significant figures. Unless otherwise indicated, use…

A: The ion is CH313Br+. The atomic mass of the most abundant isotope of hydrogen (H) and Bromine (Br)…

Q: What is the mass of 4.12 x 10^23 water molecules?

A: The number of water molecules is = 4.12×1023 molecules The mass of these molecules is =?

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.