Calculate the formula mass of Cas (PO4)2 Atom Number of Atoms Mass number Total mass number of each atom Ca 40.0 u P. 31.0 u 16.0 u

Q: How many electrons does the predictable (mostcommon) ion of fluorine contain? (a) 1 (b) 4 (c) 9 (d)…

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Q: ... The following table presents the abundances and masses of the isotopes of germanium. What is the…

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Q: How many Hydrogen atoms are there? 4H,0 O 2 O 8

A: 4H2O Hydrogen atom-H Oxygen atom-O

Q: 3. How many protons (P), neutrons (N) and electrons (e) are present in Os² that has mass number 190…

A: Given that  Atomic no of element = 79

Q: Potassium has three stable isotopes, potassium-39, potassium-40, and potassium-41. calculate the…

A: Potassium exhibit three stable isotopes, Potassium- 39, potassium - 40 and potassium - 41. Here, we…

Q: What is the mass of 3.91 x 1024 sulfur atoms? 208 O 155 O none of the above О 32.07 O 4.93

A: Given: Number of atoms of sulfur = 3.91×1024 atom And we know that the molar mass of sulfur is 32…

Q: 12. Calculate the atomic mass of an element if its average atom has a mass 2.25 times that of…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Give the complete symbol (X), including atomic number and mass number, of a. a zinc atom with 36…

A: The general method to write the symbol of an element is given as shown below. XZA Here, A is the…

Q: 2. The most common isotope of hydrogen is protium, which has: O O protons and 1 neutron O 1 proton…

A: The most common isotope of Hydrogen is ProtiumHas an abundance of 99.98%. It consists of one 1…

Q: 2). How many of the following elements are metalloids? Te Si Xe In Pb Ge

A: Metalloids are those chemical elements which possess the characteristics of both the metals and…

Q: The numbers of protons, neutrons, and electrons in 9 K* 19 O 20 p, 19 n, 19 e 0 19 р, 20 n, 19 е O…

A: Atomic no. = No. of proton = 19 Neutron = atomic mass - proton Neutron = 39 - 19 = 20

Q: A compound, A,S3, contains three S atoms per formula unit and is 43.71% sulfur. What is the atomic…

A: The compound with element A and sulfur is given by the chemical formula - A2S3 There are three 3 S…

Q: Cu has two isotopes; 63 Cu in 70 % and 65 Cl in 30%. The average atomic mass of Cu atom. Is * 63 O…

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

Q: 5. Calculate the average atomic mass of Nitrogen (verify in the periodic table) 14N 14.003 u 99.6%…

A: Given,  14N      14.003 u         99.6% 15N      15.000 u          0.4%

Q: The relative mass of a compound containing carbon, hydrogen, and oxygen is 180. The mass percentage…

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

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Q: Consider the following equation: The mass number of element X is: 213A + 23B 87C+ (x}x + 3 n

A: this problem is based on the conservation of mass. So mass in reactant will be equal to the mass in…

Q: Solve this

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

Q: When radium becomes an ion, what is its charge? O There is not enough information to answer this…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: (a) chlorine-35 protons electrons neutrons (b) palladium-104 protons electrons neutrons (c)…

A: Atomic number of a atom is equal to the number of protons present in it. The number of protons are…

Q: How many protons, neutrons, and electrons does the 79 Se 2- ion possess?

A: Atomic number is equal to the number of protons. Mass number is equal to the sum of number of…

Q: Find the atomic mass unit of silicon -28,silicon-29,silicon-30 with masses of…

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Q: 22 Calculate the mass of 3.0 × 1044 atoms of sulfur. O 1.6 g O 16 g O 160 g O 0.16 g

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Q: Cu has two isotopes; 63 Cu in 70 % and 65 Cl in 30%. The average atomic mass of Cu atom. Is * O 63 О…

A: Given Natural abundance (%) Atomic Mass  63Cu 70 65 65Cu 30 63

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

A: Average atomic mass =( m1a1 + m2a2 + m3a3)/100 m = mass of isotopes  a= abundance

Q: . Explain the role of relative weight in determining the atomic mass of an element. 2.…

A: 1. The relative weight term is used to the calculate the atomic weight of an element as the weight…

Q: The following table presents the abundances and masses of the isotopes of zinc. What is the atomic…

A: The abundance of the naturally occurring isotope given are,

Q: The following table presents the abundances and masses of the isotopes of germanium. What is the…

A: Given:

Q: Given the atomic mass of select elements, calculate the molar mass of each salt. Molar mass Element…

A: Molar mass of a compound is defined as the mass of a one mole of a substance. Its unit is g/mol.…

Q: CI has two isotopes; 17CI in 10 % , 18CI in 70%. and 15CI in 20%. The average atomic mass of Cl…

A: In this question, we want to determine the average atomic mass of Cl atom. You can see details…

Q: ... The following table presents the abundances and masses of the isotopes of germanium. What is the…

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Q: Calculate the mass and charge of 1. nucleus of atomic N 2. singly ionized Na2+

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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: What is the atomic weight of an element that consists of TWO isotopes as follows: Isotope 1: mass =…

A: Here we have to determine the atomic weights of element is have two isotopes in following abundances…

Q: 14. Given the information below, calculate the weighted average atomic mass (amu) of the element X.…

A:

Q: Calculate the mass, in kg, of each sample. I.) 1.68×1026 cadmium atoms. II.) 3.57×1027 nickel…

A: Here we need to calculate the mass of each sample as: I.) 1.68×1026 cadmium atoms. II.) 3.57×1027…

Q: Calculate the mass % of sodium, Na, in Na2Se. a.) 39.3 % b.) 18.4 % c.) 36.8 % d.) 22.5 % e.)…

A: % Mass of Na = 100 x Mass of Na/Molar mass of Na2Se

Q: A mass spectrometer determined a sample of lithium contains 88.00% Li-6.938 and 12.00% Li-6.997. The…

A: Given: Weightage of Li-6.938 = 88 ℅ Weightage of Li-6.997 = 12 ℅

Q: Write the formulas of the following compounds:(a) rubidium bromide(b) magnesium selenide(c) sodium…

A: For ionic compounds, identify the cation and the anion, along with the charge, then these 2 must be…

Q: Determine the Average Atomic Mass of the mixtures of Nitrogen isotopes 95% “N, 3% 1ªN, and 2% 1ºN 14…

A: The given isotopes and their atomic masses are given below: Percentage Isotope Atomic mass 95 %…

Q: Give the number of electrons for the following ions. Mass number 52 24Cr+3 35Br 80

A: Given :-   24Cr+3  35Br-  To calculate :-  Total number of electrons in these ions.

Q: Which of the following formulas contain the same number of oxygen atoms? I. Mg(NO)2 I. NH,NO, I.…

A: Chemical formula is the representation of chemical composition using elemental symbol, number and…

Q: The formula weight of potassium phosphate (K,PO,) is Atomic mass k =39.1, P = 31, O= 16 a. 212.3 b.…

A: Calculate formula weight of K3PO4 ?

Q: Rubidium has two naturally occurring isotopes: 85 Rb (atomic mass = 84. 9118 AMU)and 87 Rb (atomic…

A:

Q: 32. Compléte the table given below. 32. Nuclear Metal, Nonmetal, Symbol Number of Group Period…

A: The periodic table (also known as the periodic table of elements) is organized In such a way that…

Q: Rubidium has two naturally occurring isotopes, rubidium-85 (atomic mass = 84.9118 amu; abundance =…

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

Q: A hydrate of magnesium sulfate has a mass of 13.52 g. This sample is heated until no water remains.…

A: Given, The mass of a hydrate of magnesium sulfate = 13.52 g The mass of magnesium sulfate = 6.60 g…