If the empirical formula of a compound is P2O5, what could be a possible molar mass of the molecular compound? 165 g/mol 55 g/mol more than one of these could be a valid molar mass of the compound none of these could be a valid molar mass of the compound 275 g/mol

Q: A substance composed of only N and O has the composition by mass 69.57% O. What is the molecular…

A: Molecular formula of the compound can be determined by calculating the number of moles of all the…

Q: A sample of ammonium phosphite, (NH4)3PO3, contains 0.162 mol of nitrogen atoms. The number of moles…

A: Given , ammonium phosphite  (NH4)3PO3

Q: Consider the chemical formula for one molecule of methane, CH4. If instead of one molecule we had 10…

A: According to chemical formula of methane ( CH4 ) , it's very clear each molecule of methane has one…

Q: The mineral hedyphane has the formula Pb3Ca2(AsO4)3Cl  (m.w = 1154.0 g/mol).  How many moles of…

A: A chemical formula represents the number of elements present in a compound in their relative…

Q: The compound chloral hydrate, known in detective stories as knockout drops, is composed of 14.52% C,…

A: The empirical formula of a compound gives the proportions of the elements present in the compound.…

Q: What is the mass of 2.84 mol H2O? 3.05 g 51.2 g 28.4 g 3.48 g

A: We have to predict the mass of water.

Q: step 4 Dichlorine heptoxide (C1207)(C1207) is a highly reactive compound used in some organic…

A: Given that -  Dichlorine heptoxide , Cl2O7 , which is a highly reactive compound.    The molar…

Q: Complete the table below for calculating the molar mass of the compound phosphorus triiodide. Molar…

A: Moar mass of Phosphorus = 30.973762 g/mol  Molar mass of Iodide = 126.90447 g/mol

Q: łow many C atoms are in 5.50 g of C? O 2.76 x 1023 c atoms 5.01 x 1022 C atoms 3.31 x 1024 C atoms…

A: Given, mass of C = 5.50 g Molar mass of C = 12 g.mol-1

Q: The molar mass of water is 18.015 28 g/mol. How many hydrogen and oxygen atoms are present in 10.0 g…

A: Mole is standard scientific unit for counting entities at the microscopic level (i.e., atoms,…

Q: A compound with the empirical formula CH2CH2 has a molar mass of 112112 g/mol. What is the molecular…

A: Solution,  The above question belong to some basic concept of chemistry. Empirical formula is the…

Q: What is the molar mass of phosphorus pentachloride (PC15)? O 190.30 g/mol O 208.22 g/mol O 172.75…

A:

Q: Which sample has the greatest amount of atomic nitrogen? 33.0 g of N2O 3.01 × 1023 molecules of N2…

A: The objective of the question is to determine which of the given samples contains the greatest…

Q: If a compound is composed of 6.2% Hydrogen, 39.5% Oxygen, 37.0% Carbon and 17.3% Nitrogen a.…

A:

Q: Formula Amount of Molar Mass of Amount of Samples units or molecules mass(g/mol) sample(g) atoms…

A:

Q: 2 KClO3              2 KCl + 3O2 How many grams of O2 will be formed from 3.76 grams of KClO3

A:

Q: will

A:

Q: Suppose that you repeat Experiment 1, starting with a mass of 4.995g of salicylic acid. After…

A: To calculate your theoretical yield and percent yield of aspirin.

Q: A compound contains 78.14% B and 21.86% H by mass and has a molar mass of 27.67 g/mol. What is the…

A: mass % of B = 78.14 %mass % of H = 21.86 % mass of hydrogen in 1 mole (27.67 g) of the compound = ?

Q: A 5.17 g sample of a compound with the formula CxHyOz is combusted and yields 13.0 g CO2 and 2.29 g…

A:

Q: Complete combustion of 7.30 g of a hydrocarbon produced 22.4 g of CO2 and 10.7 g of H2O.   What is…

A:

Q: What mass of SbF3 (179 g/mol) is needed to produce 1.00 g of Freon-12, CCl2F2 (molar mass = 121…

A: The balanced equation of the reaction is given and the moles of CCl2F2 is calculated as shown,

Q: Use this chemical equation to answer the question below: 2K + Br2 2 KBr Which of the following would…

A:

Q: empirical formula of C2H3O and a molecular weight of 129 g/mole, what is its molecular formula

A: Empirical formula = C2H3O Empirical formula mass = 2×12 + 3×1 +1×16 = 43 g/mol Molecular weight =…

Q: if CH2O has a molar mass of 282.33 g/mol, what is its molecular formula?

A: We have Empirical formula as CH2O => the ratio of atoms will be  C : H : O = 1 : 2 : 1  Assuming…

Q: Calculate the mass of 3.62 x 1024 molecules of Vitamin A which has a molar mass of 180g/mole. O 1.08…

A: Given,the number of molecules of vitamin A =3.62×1024 moleculesmolar mass of vitamin A =180 gmolwe…

Q: Complete the table below for calculating the molar mass of the compound silicon dioxide. Mass in one…

A: We have to calculate the molar mass of silicon dioxide.

Q: An unknown compound has a formula CxHyOz. You burn 0.1705 g of the compound and isolated 0.4163 g of…

A: given value : given mass of (i) carbon dioxide = 0.4163 g (ii) water = 0.1074 g (iii) unknown…

Q: explain why the number of atoms and moles are different when the volumes are nearly identical?

A: 1. The table contains the data required to solve this problem.

Q: Calculate the molar mass of the following substances. Molar Mass = b. Mg3(PO4)2 Molar Mass = c.…

A: Molar mass of given compounds can be calculated as:

Q: A compound with an empirical formula of C4H4O and a molar mass of 136 grams per mole. What is the…

A: Given, Compound With an empirical formula = C4H4O  molar mass of the compound = 136 g/mol Molecular…

Q: carbon-hydrogen-nitrogen compound when burned completely, a 0.312 g sample yields 0.458 g CO2 and…

A:

Q: The atomic molar mass of some elements, as shown in the periodic table, is as follows. Atomic molar…

A: Molar mass of calcium nitrate = ?Note: chemical formula of calcium nitrate is Ca(NO3)2.Atomic molar…

Q: e you have two samples that are equal in weight, 19.3g Ag and 19.3 g Al2O3 . Calculate the number of…

A: A Moles is defined as the mass of the substance which consists of the equal quantity of basic units.…

Q: A compound has the empirical formula CH,O and a molar mass of approximately-180. g/mol. What is its…

A: Divide the molar mass of the compound by the empirical formula mass. The result should be a whole…

Q: What mass of carbon dioxide, CO₂, contains the same number of molecules as 3.00 g of…

A:

Q: What is the molecular formula for a compound that has a molar mass of 92.0 g/mol and an empirical…

A:

Q: One molecule of an unknown compound is found to have a mass of  4.61 x 10-22 g. What is the molar…

A:

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.