Given is the molar mass of several elements below: Element Molar Mass Redium (R) 1.55 g/mol Cyanium (Cn) 3.8 g/mol Purplium (Pp) 8.78 g/mol Greenon (G)  17.16 g/mol Magentine (Me) 51.45 g/mol Rainbownon (Rw) 61.48 g/mol Yellownium (Yl) 83.21 g/mol Find the molar mass of the chemical compound, YlCn3.

Q: The molar masses and empirical formulas of several compounds containing carbon and chlorine are as…

A: given: 284.77 g/mol, CCl 131.39 g/mol, C2HCl3 181.44 g/mol, C2HCl   a) empirical mass of CCl =…

Q: Calculate the number of Lit ions in 7.38 g Liz PO4. Lit ions = Calculate the grams of O in 7.38 g…

A:

Q: What is the mass of 4.50 x 10- Cu atoms? Multiple Choice 7.47 x 10 amu 7.47 x 10 g 4.75 g 63.55 amu

A: Calculation of mass of cu atom:

Q: Naturally occurring chlorine is 75.78% 35Cl (atomic mass 34.969 u) and 24.22% 37Cl (atomic mass…

A: Given :  Atomic mass of lighter isotope i.e 35Cl (A1) = 34.969 u  Percentage abundance of lighter…

Q: Complete the table. Element Mass Moles Number of Atoms Pt 0.0449 Fe 1.14 x 1025 Ti 23.8 mg Hg 2.05

A: Pt : Mass of Pt = moles x molar mass = 0.0449 x 195 = 8.76 g Number of atoms of Pt = moles x…

Q: A sample has 8.63 x 10 atoms of boron. How many moles of boron does this represent? O1.41 .014 O…

A: Given : Number of atoms of boron = 8.63 X 1021 atoms

Q: A nitrogen oxide is 63.65% by mass nitrogen. The molecular formula could be NO2 N20 N204 NO either…

A: Given, Mass % of Nitrogen = 63.65 %  So, Mass % of Oxygen  =( 100 - 63.65 ) %  = 36.35 %

Q: made-up compound: J2(QZ3)2 Determine the number of molecules of J₂(QZ3)2 in 7.2 grams of J₂(QZ3)2…

A: Given -> Weight of J2(QZ3)2 = 7.2 gram  Atomic mass of J = 19.00 g/mole Atomic mass of Q = 35.00…

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: A 2.63 g2.63 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A:

Q: You are working in the laboratory preparing sodium chloride. Consider the following results for…

A: The results has to be explained on basis of law of conservation of mass and definite composition.

Q: Complete the table below for calculating the molar mass of the ionic compound chromium(II) fluoride.…

A: Calculation of molar mass of the chromium(II) fluoride: The molar mass of Cr2+ = 51.99 g/mol The…

Q: What is the mass of 2 moles of NH3? (Hint: 1 molecule of NH3 has a mass of 17 amu) * O 17 amu O 17 g…

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Q: A metal (M) forms an oxide with the formula MO. If the oxide contains 39.70 % O by mass, what is the…

A: Molar mass of an element is its characteristic property .So to identify the metal, first its molar…

Q: Consider the following made-up compound: (DJ)3Q2 Determine the number of moles of element Q in the…

A: Given ,Fake Periodic table.Compound : Mass of = 0.575 gObjective : Determine moles of Q in

Q: A metal (M) forms an oxide with the formula M2O. If the oxide contains 16.99% O by mass, what is the…

A: The given data contains, mass of Oxygen = 16.99 g. Thus mass of M= 100-16.99 = 83.01 g.

Q: 3)A pure copper sphere has a radius of 0.935 in. How many copper atoms does the sphere contain? The…

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Q: * Question Completion Status: Barium oxide was synthesized form the reaction of barium and oxygen in…

A: Barium reacts with oxygen to form barium oxide. The equation for the balanced chemical reaction is…

Q: How many atoms are in each elemental sample? Express your answer using two significant figures. 1)…

A: One mole of a substance is the amount of the substance that is equivalent to the molar mass of the…

Q: Assume silicon has three major isotopes in nature as shown in the table below.Fill in the missing…

A: Given the details of isotopes of Silicon: Isotope Mass (u) Abundance 28Si 27.98…

Q: None

A: Step 1: Calculation of the molar mass of compound Given,molar mass of X = 5.09 g/mol molar mass of Z…

Q: Determine the number of moles of cesium in 50.0 g of cesium.

A:

Q: 6Li + N2 --> 2Li3N If 50 g Li reacts with 40 g N2, what is the maximum mass of lithium nitride…

A:

Q: There are 1.8 x 1024 atoms of chlorine in a sample of magnesium chlorate, Mg(CIO3)2. What mass of Cl…

A: Given: Atoms of chlorine in the sample = 1.8×1024 Molar mass of Cl = 35.5 g/mol

Q: Fill in the blanks for the 1sr image . For the second image it’s filled in which is an example to…

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

Q: Which sample contains the greatest number of atoms? O 102 g Ag O 189 g Ir O 18 g O O 53 g Fe

A: The number of moles is defined as the ratio of a given mass to molar mass. No. of moles =Given…

Q: how many ions are there in 4.50g of MgBr2? (Mg = 24.305 g/mol, Br = 79.904 g/mol, assume NA = 6.022…

A: In this question we need to find the number of ions present in 4.50 g of MgBr2 Atomic mass of Mg =…

Q: 1 mole of 63Cu atoms has a mass of about 63 grams. Explain why the number below Cu on the periodic…

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Q: 4. The compounds given below are all fertilizers and provide nitrogen to the soil. Which of the…

A:

Q: Consider the following hypothetical equation.  2 AB3 +  3 C2D --> A2D3 + 6 CB OR 2 A B3 + 3 C2 D…

A: Mass of AB3 = 34.49 grams. Mass of C2D = 38.02 grams  Actual yield of A2D3 = 4.25 grams. Percentage…

Q: If you have 7.20*10^26 platinum atoms, how many moles do you have?

A: Answer: This question is based on the relation between number of moles and Avogadro number which…

Q: Table 1: Molar masses of common rock forming elements Atomic Mass (amu) 28.09 Element Oxide (1)…

A: We can identify the valency of oxide are as follows Suppose the oxide formula is = MaOb(=2) Here,…

Q: Cobalt (III) fluoride is reacted with sulfur tetrafluoride to form sulfur hexafluoride and cobalt…

A: Given  Mass of sulfur hexafluoride = 24.94 gram  Amount of Cobalt (III) Fluoride = ?

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: The chemical formula of a compound provides the number of atoms of different elements present in the…

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: An unknown compound contains 53.34% rhodium, 9.338% carbon, and the rest is oxygen. a) If you assume…

A: Given a compound with the composition: Rh = 53.34 % C = 9.338 % O = 100 - (53.34 + 9.338) % = 37.322…

Q: A sample of a compound is found to contain 6.17 g carbon, 1.04 g hydrogen and 18.16 g chlorine. Its…

A:

Q: What is the molar mass of Copper (1I) Nitrate, Cu(NO3)2? O 93.56 g/mol O 172.56 g/mol O 125.56 g/mol…

A: The question is about to find the Molar Mass of Copper (II) Nitrate -

Q: A compound known to contain only the elements carbon and oxygen was analyzed and found to contain…

A:

Q: A compound has an empirical formula of C 8H 17. If a sample of the compound contains 4.90 grams of…

A: To solve this problem we will first find the number of moles of carbon from the given mass then…

Q: An unknown compound contains only carbon, hydrogen, and oxygen ( CxHyOz ). Combustion of 5.50 g of…

A: The objective of the question is to calculate the moles of oxygen in the compound.

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.