A sample of propanol, C3H3O, contains 0.383 mol of the compound. What is the mass of the sample, in grams?

Q: A compound has an epirical formula of CH2O. If the molar mass of the compound is 60g/mol, what is…

A: emperical mass=12+2+16=30 n=60/2=2

Q: If a molecule with an empirical formula CHO has a molar mass of 88.12 g/mol, what is its molecular…

A: Given, Empirical formula = CHO  Molar mass = 88.12 g/mol     Required,                     Molecular…

Q: What is the mass of oxygen atoms are in 4.36g of FeSO4?

A:

Q: A compound has the empirical formula C3H2 and has a molar mass of 228.3 g/mol. What is the molecular…

A: The empirical formula of the compound is = C3H2 The molar mass of the compound is = 228.3 g/mol We…

Q: A compound is 43.7 % P, and 56.3 % O by mass, and has a molar mass of 283.88 g/mol. What is the…

A: Element % composition Atomic Mass Relative no of atom=% compositionatomic mass Simplest atomic ratio…

Q: How many atoms are contained in in 3.62 mol O2 ?

A: It is known that 1 mole of a substance is equal to 6.022×1023 atoms. The given molecule is O2. In…

Q: How many H atoms are present in 7.52 g of propane, C3H8?

A: The given data contains, mass of propane = 7.52 g.

Q: A molecule is found to contain 47.35% by mass C, 10.60% by mass H, and 42.05% by mass O. What is the…

A: The solution to the empirical formula of the compound is attached below.

Q: How many molecules are in 28.0 g of isopropyl alcohol C3H8O?

A: The formula of isopropyl alcohol is C3H8O Hence molar mass of C3H8O = Atomic mass of C X 3 + Atomic…

Q: How many moles of sodium carbonate contain 1.773 × 1017 carbon atoms?

A:

Q: A sample contains 3.23 * 10 ^ 25 molecules of CO 2 . What would be the mass of that sample, in…

A:

Q: How many moles of each element are in one mole of Be(OH)2?

A: Given, One mole Be(OH)2  Firstly check all the elements present in in Be(OH)2 If it is given that…

Q: The compound is CH4N2O. If the molecular weight of the compound is 120.12 g/mol, what is the…

A:

Q: What is the mass, in grams, of 9.29×1024 molecules of methanol (CH3OH

A: Given :-9.29x1024 molecules of methanolFirst convert molecules into moles9.29x1024molecules of…

Q: What is the mass, in grams, of 7.70×1020 molecules

A:

Q: A compound is 75.46% carbon, 4,43% hydrogen, and 20.10% ocygen by mass. It has a molecular masa of…

A: Given Element %  of  carbon(C) = 75.46 % = 75.46 g Element %  of  hydrogen(H) = 4.43 % = 4.43 g…

Q: How many grams of diazine (N2H2) are there in 2.01 mol of the compound? ______________________ g

A: The molar mass of diazine is:

Q: A 0.3870-g sample of a compound known to contain only carbon, hydrogen, and oxygen was burned in…

A: Empirical formula of a compound is the simplest positive integer ratio of all the elements present…

Q: How many moles of bromine atoms are present in a sample that contains 4.53 moles of BBr3 ?

A: From any molecular formula of any molecule, we can determine the moles of each atoms present in it.…

Q: Calculate the mass, in grams, of  0.607  mol of hydrogen peroxide,  H2O2 . mass of  H2O2:

A:

Q: What is the molecular formula of a compound that contains only carbon and hydrogen, is 85.6% carbon,…

A: Given, Compound contains only carbon and hydrogen. Mass percent of carbon = 85.6%. Molar mass of…

Q: How many moles of Al(C2H3O2)3 contain 19 moles of O? Determine the % composition by mass of the…

A: % composition = (molar mass of element/total molar mass of compound)*100

Q: How many hydrogen atoms are in 0.1488 g of phosphoric acid, H3PO4?

A: Number of moles=Given massMolar massGiven mass of Phosphoric acid=0.1488 gMolar mass of Phosphoric…

Q: How many moles of potassium cyanide, KCN, are present in a sample containing 67.1 grams of the…

A: Given, Mass of potassium cyanide (KCN) = 67.1 g Moles of potassium cyanide (KCN) = ? Note:  Molar…

Q: How many hydrogen atoms are in 0.1488 g of phosphoric acid , H3PO4?

A: Given : mass of H3PO4 = 0.1488 g Molar mass of H3PO4 = Atomic mass of H X 3 + Atomic mass of P +…

Q: A sample of 7.2 moles of the ionic compound, potassium dichromate, K2Cr2O7, is present. How many…

A: Explained as follows

Q: A sample of 7.2 moles of the ionic compound, potassium dichromate, K2Cr2O7, is present. How many K+…

A: Applying concept of avogadro number. 1 mole = 6.022× 1023 atom/ molecules/ ions

Q: What is the mass, in grams, of 9.35×1024 molecules9.35×1024 molecules of methanol (CH3OH)?

A: Given information: molecules of methanol (CH3OH) = 9.35×1024

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: A compound with the empirical formula CH2 has a molar mass of 84 g/mol. What is the molecular…

A: * Emperical Formula is the simplest integer ratio of atom present in a compound . It does not tell…

Q: Given the empirical formula of NO2 and a molar mass of 92.0 g/mol, what is the molecular formula?

A:

Q: How many atoms of H are present in 37.6 g of NH3?

A: Given, Mass of NH3 = 37.6 g Molar mass of NH3 = 17.031 g/mol

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: A compound with the empirical formula CH2 has a molar mass of 112 g/mol. What is the molecular…

A: Given - Empirical formula = CH2 Molar mass = 112 g / mol To find - molecular formula Formula -…

Q: What mass in grams of TNT can be made from 598 g C7H8?

A:

Q: How many moles of Fe2O3 are in 163 g of the compound?

A: Given - mass of Fe2O3 = 163 g To find - moles of Fe2O3 Formula -

Q: A compound is found to contain 69.6% sulfur with the remainder being nitrogen.  The molar mass of…

A: Let us assume, we have 100g of the compound. Calculate the number of moles of sulfur S and nitrogen…

Q: If you have a sample of 55.2 grams of LizCO3, how many atoms of Li¿CO3 are in your sample?

A:

Q: An organic compound has a molar mass of 171.1 g/mol and contains 11.10 % hydrogen atoms by mass. How…

A:

Q: Quinine is used to treat malaria and has a molar mass of 325g/mol. If the empirical formula is…

A:

Q: A compound with the empirical formula CH2 has a molar mass of 98 g/mol. What is the molecular…

A:

Q: What is the empirical formula of a compound if a sample contains 0.130 g of nitrogen and 0.370 g of…

A: A representation of the chemical formula of a molecule that depicts the simplest ratio of elements…

Q: What amount (mol) of Rb is present in a sample containing 3.15×1025 atoms?

A: Given,Number of atoms in a sample = 3.15 × 1025 atomsWe know that, 6.022 × 1023 atoms are in 1 mole…

Q: How many total atoms are in 0.750 g0.750 g of P2O5?

A: Given: Mass of P2O5 = 0.750 g Molar mass of P2O5 = 283.886 g/mol

Q: A molecule is found to contain 50.0% by mass C, 5.61% by mass H, and 44.4% by mass O. What is the…

A: C = 50.0% H=5.61%  O= 44.4%

Q: How many total atoms are in 0.630 g of P2O5?

A: Given: Mass of P2O5 = 0.630 g Molar mass of P2O5 = 141.9445 g/mol.

Q: Approximately how many molecules of H2O are in one spoonful of water, assuming that the spoon holds…

A: Given, a spoon holds about 18 mL of water.we are asked to calculate the number of water molecules in…

Q: Consider a 3.570 g sample of C4H10. How many molecules are in this sample?

A: Mass of C4H10 = 3.570 g       Molecular mass of butane (C4H10)=…

Q: if 4.04g of n combines with 11.46g of o to produce a compound with a formula mass of108.0 amu, what…

A: Given data,  Mass of N = 4.04 g  Mass of O = 11.46 g  Formula mass of the compound = 108 amu

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.