If there are 2.37 moles Fe203 then how many moles of Fe and O2 are there ? if there are 11.11 moles Fe203 then how many moles of Fe and O2 are there ?

Q: Calculate the number of C atoms in 0.872 mol of C? Calculate the number of SO2 molecules in 8.44…

A: The answers to the first three questions are given as:

Q: How many moles of O2- ions are there in 0.450 moles of aluminum oxide, Al203? mol O2- What is the…

A:

Q: How many moles of hydrogen are in 3.06 x 10-3 g of glycine, C2H5NO2 ?

A: Moles of glycrine = given mass of glycrineMolar mass of glycrineMolar mass of glycrine (C2H5NO2) is…

Q: How many grams are in 1.18 x 1021 HF molecules? H = 1.008 g/mole and F =19.00 g/mole

A: Number of mols = Weight in gMolecular weight in g/mol Then Weight of the substance = Number of mole…

Q: One carrot may contain 0.63 mg of vitamin A (C20H30O). How many moles of vitamin A is this? x 10 mol…

A: Molar mass of Vitamin A = 286g/mol Mass of vitamin A= 0.63mg=0.00063g Moles= (0.00063/286) mol=…

Q: 6. The composition of a given substance is as follows: 3.5 mol C, 2.52 g H, 24.0 g O, 3.01 x1023…

A:

Q: How many moles are there in 178.66 g of Hexane (CGH14)? O 3.57 O 0.48 O 2.08 O 0.28

A: Given mass of C6H14 = 178.66 g Moles = Given mass / Molar mass  Molar mass of C = 12 g/mol  Molar…

Q: How many CO2 molecules are there in 12.0 moles CO2?   How many moles NH3 contains 1.5 x 10 23 NH3…

A: a) Given : Number of moles of CO2 = 12.0 mol.

Q: The chemical formula for chlorophyll is C55H72MgN4O5. Given the molar mass of the compound is…

A: molecular mass of chlorophyll  = 893.49 g/mol

Q: How many atoms of hydrogen are in a 1.0 g sample of acetic acid, CH3COOH? The molar mass of acetic…

A: As per the given data we haveMass of acetic acid=1gMolar mass of acetic…

Q: un o 8u described in this laboratory. After heating, the sample is found to weigh 2.245 grams. How…

A:

Q: Given the atomic masses: x=1 grams Z=16 grams A=32 grams What is the molar mass (in grams ) of…

A: Given: The atomic masses for x, Z and A are included in the table. Element Atomic mass of 1 mole…

Q: How many grams are in 2.3 x 104 moles of calcium phosphate, Ca3(PO3)2? How many moles are in 3.4 x…

A: 15 ) given moles of calcium phosphate = 2.3 *10-4 moles  molar mass of calcium phosphate = 310.18…

Q: The chemical formula for chlorophyll is C₅₅H₇₂MgN₄O₅. Given the molar mass of the compound is 893.49…

A: The chemical formula for chlorophyll is C₅₅H₇₂MgN₄O₅. Molar mass of chlorophyll is 893.49 g/mol1 mol…

Q: How many moles are there in 4.31 × 10¹2 molecules of sucrose C12H22011? (1 mole = 6.022 x 1023…

A:

Q: What is the molar mass for each of the following compounds? 1. Na,CO; Fe(CIO;); How many molecules…

A:

Q: If i have the chemical equation Mg(s) + 2HCl(aq) ⟶ MgCl2(aq) + H2(g), how would I find the moles of…

A: We have given that  the balanced chemical equation :                    1Mg(s) + 2HCl(aq) →…

Q: How many molecules of C7H10O2N2 are there in 2.648⨯10-2 moles of that substance?

A: To determine the number of molecules of C7H10O2N2 in 2.648⨯10-2 moles, we can use Avogadro's number,…

Q: One mole of N2 contains how many N2 molecules? How many N atoms are there in one mole of N2? One…

A: Number of  N2 molecules in 1 mol N2 1 mol N2 = 6.022 x1023 N2 molecules Number of N atoms in 1 mol…

Q: Ethanol, CH3CH2OH, is the principal type of alcohol found in alcoholic beverages, produced by the…

A:

Q: In 0.4 ure in 2.9 mol of

A: Firstly Calculate the moles of Br atom in CHBr3  moles of Br atom = 3 • ( moles of CHBr3 )  Moles of…

Q: The number of moles  of 3.06 X 10–3 g of C2H5NO2 is 0.0408 moles.

A: In international system of units, Mole is considered as a unit which helps to calculate the amount…

Q: re each number. Column A Column B 1. What is the mass of 0.042 mole C8H18? 2. How many moles are…

A: 1) Calculating the mass of 0.042 moles C8H18:

Q: Aluminium has a density of 2.70 | g/cm3 . How many moles of aluminum are in a 13.2 cm3 block of the…

A: Density :- Density of a substance is its amountof mass per unit volume . So , density is the…

Q: How many moles are there in 101 g of Hexane (CeH,)? 0.85 O 1.17 O 2.02 O 0.50

A: Given, Mass of hexane = 101 g To calculate the number of moles.

Q: How many moles are there in 3.00 g of ethanol, CH3CH2OH?

A: Given:  Mass =3 .00 g Molar mass =46.07 g/ mole

Q: Ascorbic acid, or vitamin C (C6H8O6), is an essential vitamin. It cannot be stored by the body and…

A: Given : Mass of vitamin C i.e C6H8O6 in tablet = 500.0 mg = 0.500 g…

Q: Calculate the number of atoms in a 8.20 x 10³ g sample of sulfur. number of atoms: A reaction…

A:

Q: 3. What is the mass (in kg) of 6.89 x 1025 molecules of CO2? The molar mass of CO2 is 44.01 g/mol.

A:

Q: How many ATOMS of nitrogen are present in 2.69 moles of nitrogen trifluoride? How many MOLES of…

A: The objective of the question is to find out the number of atoms of nitrogen in a given amount of…

Q: If there are 5.00 g of CaCO3 in a flask, how many moles of CaCO3 are there?

A:

Q: 5) How many molecules are in 2.9 mol of C7H5N3O6?

A: applying concept of Avogadro concept of molecules calculation

Q: A person drinks 1.50 × 103 g of water, H2O, per day. How many moles is this?

A: Given,Mass of water = 1.50×103 gMolar mass of water is 18.015 g/mol

Q: 1. Ethanol has a chemical formula of C2H6O. What is its molar mass? 2. How many molecules of the…

A: Ethanol has a chemical formula of C2H6O

Q: Complete combustion of 8.582 g of a particular hydrocarbon yielded 27.73 g of CO2 and 9.080 g of…

A: Given,mass of the hydrocarbon = 8.582 gmass of CO2 = 27.73 gmass of H2O = 9.080 g

Q: What mass of (NH2)2CO contains 8.9x1019 molecules of (NH2)2CO? 2.)How many atoms of O are 10.0 g of…

A: No o moles is defined as given mass divided by molecular mass.

Q: Butane has a molecular weight of 58.1 grams in one mole.  How many carbon atoms are in 3.00 gg of…

A: Butane is a hydrocarbon made of four compounds and is represented as C4H10

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.