Mass Spectrum for Tin (Sn) 120 100 100 80 58 60 27 40 20 115 116 117 118 119 120 121 mass (amu) 8. According to the mass spectrum above, the average mass of tin in this sample is (A) 219.76 amu (B) 118.79 amu (C) 118.00 amu (D) 61.67 amu Abundance

Q: If mass Q mass A = 0.571 in AQ, what is mass Q mass A = in A₂ Q3 ?

A: Answer: Two compounds always react in the fixed ratio of their masses and this is called as law of…

Q: What is the molecular (formula) mass (in AMU) of C 4H 80 2? Key Concept: The molecular mass is…

A: Answer is in next step

Q: Chemical analyses conducted by the first Mars Rover robotic vehicle in its 1997 mission collected…

A:

Q: Magnesium oxide was formed when the metal burns in air.  (i)            If 1.25 g of magnesium…

A: Answer:- This question is answered by using the simple concept of calculation of mass ratio of the…

Q: A sample of Cu weighs 64.6 grams. Will a sample of Zn that contains the same number of atoms weigh…

A:

Q: Calculate the mass in grams of each elemental sample.(a) 1.32 * 1020 uranium atoms(b) 2.55 * 1022…

A: Mole is defined as the ratio of given mass and molar mass. The unit of mole is mol. It is utilized…

Q: Boron has two naturally occurring isotopes, ¹⁰B (19.9%)and ¹¹B (80.1%). Although the B₂ molecule…

A:

Q: Symbol mass moles Number of atoms Fe 354 g potassium 302 g silver 2.16 x 1024

A: Number of moles = mass ÷ molar mass Number of atoms in 1 mol = 6.022 x 1023

Q: Magnesium oxide (MgO) forms when the metal magnesium burns in air.   (a) If  1.44 g  of MgO…

A:

Q: 4. (a) Below, ionic formulas are paired with names of ions. Which name is incorrectly matched with…

A: We will use the common namings of the ions that are usually used in inorganic chemistry to find the…

Q: A hypothetical element, E, has two stable isotopes. One isotope has a natural abundance of 66.909%…

A:

Q: Compound Y contains lead and oxygen only. 15.0 g of Y was found to contain 12.99 g lead. Find out…

A:

Q: 5. In a 3.7-gram sample, there are (A) 1.1 x 1022 atoms of gold (B) 3.2 x 1025 atoms of gold (C) 4.4…

A: Number of Mole-Ratio of given mass of substance to the molar mass of substance is called number of…

Q: (b) A certain element has two naturally occurring isotopes. The mass of one of the isotopes is…

A: The meaning of iso is the same and topes stands for the position. In the periodic table, if the…

Q: One mole (molecular equivalent) of gold has a mass of 196.9655 g.  One mole of anything equals 6.022…

A: Given : Mass of gold (1 mole)= 196.9655 g  Diameter of gold = 3.58 × 10-10 m Block of gold of mass =…

Q: he average atomic masses of some elements may vary, depending upon the sources of their ores.…

A: Explanation Solution Two substances, the percentage of each isotope, are unidentified. As both…

Q: Iron exists in nature as a mixture of predominantly three isotopes: ⁵⁴₂₆Fe (53.94 amu), ⁵⁶₂₆Fe…

A: We have to calculate the percentage of rarest of three isotopes.

Q: The mass spectrum of an organic compound shows the relative abundances of M to be 87.83% and M+ 1 to…

A: Relative abundance/intensity of M+1 peak = 11.40 % Relative abundance/intensity of M peak = 87.83 %…

Q: (c) An unknown atom has 20 neutrons. Its mass is 6.138 x10-23 g. (i) (ii) Determine the chemical…

A: The mass number of an element is furnished as the sum of the protons (p) and neutrons (n) of the…

Q: Determine the empirical formula of each of the following compounds. (Type your answer using the…

A: Data given:  (a) Number of moles of chlorine = 0.063 mol Number of moles of oxygen = 0.22 (b) Mass…

Q: Which elements have molecules as their basic units?(a) helium (b) oxygen(c) iron (d) bromine

A: The elements which have  molecules as their basic units has to be given,

Q: There are two different isotopes of bromine atoms. Undernormal conditions, elemental bromine…

A: Hello. Since the question contain multiple sub-parts, the first three sub parts are solved. In case…

Q: Calculate (a) the number of atoms in 1.05 × 10−6 mole of helium and (b) the number of moles of…

A: a.

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

A:

Q: A newly discovered element, X, has 3 isotopes weighing 350 amu, 355 amu, and 357 amu. If the…

A: Given:3 isotopes of X weighs 350 amu, 355 amu, and 357 amuAbundances of these isotopes are 50.0 %,…

Q: QUESTION 8 (a) In the certain hydrated salt MSO34H2O, the mass percentage of H2O is 44.71%.…

A: (a) Given the hydrated salt MSO3.4H2O, in which mass % of H2O is 44.71% here, 4 molecules of water…

Q: The atomic mass of fluorine is 18.998 amu, and its mass spectrum shows a large peak at this mass.…

A: The isotope of fluorine having a mass of 18.998 amu is highly abundant by a very large amount, which…

Q: Rubidium has two naturally occurring isotopes. The average mass of Rb is 85.4678 u. If 72.15% of Rb…

A: Given, Average mass of Rb = 85.4678 u Isotope I, Rb-85 : natural abundance = 72.15 %  relative…

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: Rubudium have two isotopes, 85Rb has mass 84.9117 amu and 87Rb has mass 86.905 amu. If the average…

A: The naturally occurring Rubidium  has two isotopes, therefore both of them are present in Rubidium…

Q: Mass Spectrum for Tin (Sn) 120 100 100 80 58 60 40 20 0. 115 116 117 118 119 120 121 mass (amu)…

A: Welcome to bartleby ! We have to calculate average weight of Sn

Q: 6) Copper used in electric wires comes in two flavors (isotopes): "Cu and "Cu. "Cu has an atomic…

A: Average atomic mass of an atom can be calculated asAAM=100ma​×abundancea​+mb​×abundanceb​+....​ We…

Q: The element X has two naturally occurring isotopes. The masses (amu) and % abundances of the…

A:

Q: The element gallium (atomic mass 69.723 amu) has two naturally occurring isotopes, Ga-69 (mass…

A:

Q: A pure titanium bicycle frame contains 1.61 x 10^25 titanium atoms. What is its mass in kilograms?

A: 1 mole of any substance contain 6.022 × 1023 unit of that substance. that substance may be atoms,…

Q: A 67.2 gg sample of a gold and palladium alloy contains 3.55×1023 atomsatoms . A) What is the mass…

A:

Q: a)Using the data provided, determine the mass percent of water and the mass percent of anhydrous…

A: Given, mass of hydrated copper (II) sulfate: 131.4g mass of anhydrous copper (II) sulfate: 130.26g…

Q: You take three compounds, each consisting of two elements (X, Y, and/or Z) and decompose them to…

A: The problem belongs to the simplest ratio of masses.

Q: Unknown element, Element X, exists in nature as two isotopes: ^{351}351 X has a mass of 350.9196 u…

A: Average atomic mass=∑i=1n (mass of ith isotope)(%abundance of ith isotope)100 where 'i'…

Q: How many atoms are in each of the following samples that contain naturally occurring iodine atoms?…

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

Q: A 67.2 g sample of a gold and palladium alloy contains 3.33*10^23 atoms.  a) What is the mass % of…

A: Given data,Mass of alloy=67.2gTotal number of atoms=3.33×1023atoms

Q: In using a mass spectrometer, a chemist sees a peak at a mass of 30.0106 AMU. Of the choices 12C2…

A:

Q: Iron exists in nature as a mixture of predominantly three isotopes: 54 426Fe (53.94 amu), 5626Fe…

A: It is given that Iron exists in nature as a mixture of predominantly three isotopes: 5426Fe (53.94…

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.