The total number of atoms in 2FrCN

Q: You have discovered a new element - Bluehenium (Bl).  It has two naturally occurring isotopes 68Bl…

A:

Q: Potassium naturally consists of 93.10% K-39 and 6.9% K-41. Calculate the atomic mass for Potassium.

A: Given that, % abundance of K-39 = 93.10 % = 0.9310  % abundance of K-41= 6.9 % = 0.069  Then,

Q: In the dot diagram seen below which element could be represented by the letter X

A: In the given image, dots represent electrons.

Q: Calculate the number of atoms in sample. 5.18 g P

A: To calculate the number of atoms of 5.18 g P is given below as; The atomic mass of P is 30.97 g/mol…

Q: Calculate the mass in grams of one Pd atom.

A: We know that,  1 mole = 6.023 X 10^23  atoms  Number of moles = No of atoms / (6.023 X 10^23)  Mass…

Q: The diameter of a US penny is 19 mm. The diameter of a silver atom, by comparison, is only 2.88 Å.…

A: The diameter of one silver atom in the units of mm is calculated as follows:

Q: Calculate the mass, in grams, of each sample.a. 1.1 * 1023 gold atomsb. 2.82 * 1022 helium atomsc.…

A: Given data: Avogadro's number NA, 6.023×1023atoms Convert first the number of atoms to moles using…

Q: Use the information given below to calculate the average atomic mass of element X.

A: The data given is,

Q: Determine the number of electrons in the Cl -1 ion. a. 17 electrons b. 18 electrons C. 1 electron d.…

A: Given,

Q: Determine the number of each type of atom in K2SO4.

A: A chemical formula is a shorthand representation of the elements in a compound that uses the…

Q: Calculate the average atomic mass for gallium if 60.00% of its atoms have a mass of 68,926 amu and…

A:

Q: Enter your answer in the provided box. Calculate the average atomic mass of chlorine. The…

A:

Q: A 20.0 g sample of an element contains 4.95 x 1023 atoms. Identify the element. a) Cr b) o c) Mg d)…

A: An element is a pure material in chemistry that consists only of atoms with the same number of…

Q: The relative atomic mass of antimony is 121,8. Antimony exists as two isotopes - antimony 121 and…

A: Given, The relative atomic mass of antimony is 121.8 and it's two isotopes  antimony 121 and…

Q: Determine the charge of each ion.(a) oxygen ion with 10 electrons(b) aluminum ion with 10…

A: ANSWER

Q: The two isotopes are N-14 and N-15. Nitrogen's atomic weight is 14.007.Calculate the percent…

A: We have to find the percentage abundance of an isotope of nitrogen, when its average atomic mass is…

Q: Which of the following elements would be classified as a nonmetal? a.) silicon  b.) francium c.)…

A:

Q: Which of the following has the greatest number of electrons?   a. Ca2+   b. K+   c. Cl-   d. S2-…

A: Number of electrons in Ca2+ = 20 - 2 = 18 e- Number of electrons in K+ = 19 - 1 = 18 e- Number of…

Q: Calculate the number of atoms in each sample.a. 14.955 g Cr                                    b.…

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

Q: An element has three isotopes with the following masses and percent natural abundances. Determine…

A: Given that,

Q: 1) Three isotopes of Silicon occur in nature: Isotopes of Silicon: Silicon-28 Silicon-29 Silicon-30…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: What is the formula of chromium(VI) oxide?   What is the formula of carbon tetraiodide?

A: We have to predict the formula for the given names

Q: Complete the following table for an isotopically labeled atom or ion: Complete the following table…

A: Given incomplete table is :  Complete the given table ?  Number of protons (p) = Atomic number (Z)…

Q: How much (in atomic mass units, amu) would 78 atoms of an element with atomic mass 107.18 weigh?…

A:

Q: Naturally occurring element X exists in three isotopic forms: 28 X (27.979 amu, 92.21% abundance),…

A:

Q: 4. 14N and 1C have the same number of A. isotopes. B. protons. C. neutrons. D. electrons.

A: The subscript denotes the atomic number and the superscript denotes atomic mass.

Q: Potassium naturally consists of 93.10% K-39 and 6.90% K-41. K-39 has an atomic mass of 38.963707…

A:

Q: 26) An element has two isotopes. One has an atomic mass of 68.93 amu and a natural abundance of…

A:

Q: The element lithium has two stable isotopes, lithium-7 with an atomic mass of u and lithium-6 with…

A: Hi.. In the given question, numerical value for atomic mass of both the isotopes are not…

Q: An element exist as 3 isotopes in nature. The isotopic masses (in amu) and percent abundance’s are…

A: The average atomic mass of element is equal to the product of the masses of the isotope and its…

Q: The element rubidium has two naturally occurring isotopes. The atomic mass of 85 Rb (72.17 percent…

A: Given : There are two naturally occurring isotopes of element rubidium. Abundance of isotope 1 i.e…

Q: Atoms that vary in the number of neutrons found in their nuclei are called ________. a. ions b.…

A: Atoms are fundamental and smallest unit of chemical element. It contains protons, neutrons, and…

Q: Consider that element W has three naturally occurring isotopes with the following percent…

A: Given: Isotope with a mass number of 40 is 53.0% abundant; Isotope with a mass number of 44 is 27.0%…

Q: Atoms can combine to form Select one: O a. neutrons O b. protons O c. molecules O d. electrons

A: Atoms are the basic unit of matter that are made of 3 sub atomic particles called the electrons,…

Q: What is the most common ion of Lithium? How many neutrons does it have?

A: Most common ion of lithium = ?  Number of neutrons in this ion = ?

Q: Neon has three stable nautrally occurring isotopes. The isotopic mass and percent abundance of these…

A: The average atomic mass of neon is determined using the below formula.

Q: The net charge on an atom of a given element changes as ______ are added or removed. A) neutrons B)…

A: The net charge on an atom of a given element changes as ______ are added or removed.

Q: An element has three isotopes, A, B, and C. Atomic masses and percent abundances of the three…

A: The concept is to calculate the average atomic mass of an element.The elements having same atomic…

Q: Boron occurs naturally as 10B and 11B. Which isotope is most abundant? (Refer to the Periodic…

A: The isotopes can be described as the types of the species which have equivalent atomic number…

Q: The total number of atoms in 2CaCI

A:

Q: Since there are many more Carbon-12 isotopes found in nature, the mass of Carbon-12 should carry the…

A:

Q: Which pair correctly matches an element to its atomic number? O a) 9.012 - Be O b) 12.01 - C c)…

A: The atomic number of an element is equal to the total number of protons in the nucleus of the…

Q: 32p is an isotope of phosphorus that is frequently used in Biology labs. It has a mass number of 32.…

A: The given isotope is 32P.  The mass number of 32P, A = 32  Atomic number of 32P, Z = 15

Q: The radius of a Niobium atom is 143 pm(b) The mass of a single niobium atom is 1.54×10-22 g. Suppose…

A: Given here,the radius of a Niobium atom is = 143 pm1 pm = 1e-12 m1 m = 100 cmSo,Diameter of 1…

Q: Isotope Name (wimass number) Atomic Number of Number of Total Electric Number of Electrons Number…

A: Complete the given table---

Q: Calculate

A: We will calculate average atomic mass

Q: Calculate the number of atoms in a 2.70×1032.70×103 g sample of strontium. number of atoms:

A: Gram atomic mass of strontium is 87.62 g.

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: Silicon has three isotopes, Silicon-28, Silicon-29 and Silicon-30, whose percentage abundances are…

A: Given data,Percentage abundance of Si-28=92.21%Percentage abundance of Si-29=4.70%Percentage…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.