How many mol (moles) are contained in a 2.1g sample of lithium fluoride ?

Q: The number of moles in 10.0 grams of NaOH

A: Number of moles is equal to the ratio of mass to molar mass. Number of moles=MassMolar mass Molar…

Q: How many moles of NH3 are produced from 13 grams H2?

A: N2 +3H2 →2NH3

Q: Calculate mass percent of each element in perchoric acid, HCLO4 ?

A:

Q: 2 Mg(s) + 3 N2 (g) --> 2 MgN3 (s) How many moles of N2 will be used to produce 115 grams of MgN3?

A: The given reaction is,             2 Mg(s) + 3 N2 (g) --> 2 MgN3 (s) We have, mass of MgN3 = 115…

Q: person

A: Molar mass of water = 2 • ( molar atomic mass of H ) + molar atomic mass of O  Molar mass of water =…

Q: A flask contains 0.390 mol of liquid bromine, Br2. Determine the number of bromine molecules present…

A: Given, Number of moles = 0.390

Q: How many moles are in 8.00 g of NH3?

A: It is required to calculate the number of moles in 8 g of ammonia, which can be done using the…

Q: moles

A:

Q: How many moles of carbon dioxide are contained in 53.7 g of CO2?

A: Since, Moles is the ratio of mass to the molar mass of the compound. Thus,

Q: An antifungal molecule has a molar mass of 2448 g/mol.  a. How many moles are there in a 1.567g…

A: The given weight of sample is 1.567 g. The given molar mass is 2448 g/mol.

Q: How many moles of Ag are in 43.6 grams of Ag2O ?

A: We know that,            The Molar mass of Ag2O = 231.735 (g/mol) .   Given,    43.6 grams of Ag2O .…

Q: Calculate the percent by mass of each element in HClO2.

A: Applying formula of percentage %of elements= (atomic weight of elements/molecular weight of…

Q: How many moles of N2 can be formed by the decomposition of 2.12 mol of ammonia, NH3?

A:

Q: How many molecules are in 3.1x10^-3 g of C9H8O4?

A:

Q: A water solution of sulfuric acid (H2SO4) has a density of 1.864 g/mL and is 73.0% H2SO4 by mass.…

A:

Q: What is the mass of O in a sample of 70.09g of CO2?

A: Two or more elements are combined to form a chemical compound. Here C and O combine to form CO2…

Q: How many grams of lead sulfide are used to produce 126 grams of lead oxide

A: Given, mass of lead oxide = 126 grams Molar mass of lead oxide = 223.2 g/mol

Q: What amount in moles is 4.77x10^25 (to the power of 25) molecules?? 1.2.87x10^49 mol 2.79.2 mol…

A: Molecules = 4.77 x 1025

Q: How many molecules are present in 1.36 g of AgNO3?

A: Given : Mass of AgNO3 = 1.36 g

Q: How many grams are in 3.4x10^23 molecules of H2CO3

A: Given, Molecules of H2CO3 = 3.4*1023 Mass of H2CO3 = ?

Q: A chemist weighs 50.0 grams of solid NaOH. a) How many moles of NaOH are in the sample? [ Select ]…

A:

Q: How many moles of N2O4 can be formed from 4.25 g NO2?

A:

Q: A 1.000 g sample of an unknown compound containing only carbon, hydrogen, and oxygen was analyzed…

A: Given: Mass of sample = 1.000 g Mass of CO2 formed = 2.579 g Mass of H₂O formed = 0.6536 g Molar…

Q: According to the following reaction, how many moles of chlorine gas are necessary to form 0.452…

A:

Q: How many moles are represented by 3.65x10^34 molecules of water?

A: Given: molecules of water = 3.65×1034

Q: A 1.000 g sample of an unknown compound containing only carbon, hydrogen, and oxygen was analyzed…

A:

Q: Mass % of N in dinitrogen trioxide

A: The chemical formula of diniteogen trioxide is N2O3. The molar mass of N2O3=[(2×14)+(3×16)] = 76…

Q: How many atoms of oxygen are present in (5.096x10^0) moles of aluminum carbonate?

A: Given : no.of moles of aluminium carbonate = 5.096 × 100 mol  To calculate : no.of oxygen atoms

Q: How many g of C4H4S2 are equivalent to 5.40 moles of this compound?

A: Answer: 627.48 g

Q: chloral hydrate (C2H2Cl3O2) is a drug formerly used as a sedative and hypnotic. It is the compound…

A: We are to calculate the molar mass of chloral hydrate, C2H3Cl3O2 . Chloral hydrate is a drug used as…

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: Calculate the moles of ammonia present in a 7.040 g sample of ammonia, which has a molar mass of…

A: Given, mass of ammonia = 7.040g  Molar mass of ammonia = 17.030gmol-1  Moles of ammonia = ?  Note :…

Q: According to the following reaction, how many moles of calcium oxide will be formed upon the…

A: Given reaction -- CaCO3 ----> CaO + CO2

Q: How many moles are in 8.00 g of SO3?

A: The number of moles of a substance from its given mass may be calculated as:

Q: how many moles of carbon are in 1.0 g of CO2

A: Given;

Q: How many moles of copper(II) oxide are required to produce 12.3 moles of copper(II) chloride in the…

A: CuO + 2HCl --------> CuCl2 + H2O

Q: How many number of moles are present in 100 g of CaCO3?

A: The number of moles of a compound can be calculated by the ratio between mass of the compound to its…

Q: How many moles are present in 100g of Mg(CN)2

A:

Q: How many moles of Ag are in 63.5 grams of Ag₂O?

A: The objective of this question is to calculate the number of moles of Silver (Ag) present in 63.5…

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

A:

Q: How many molecules are present in 4.61×10^2 mol of O2?

A: Given data, Number of mol of O2 = 4.61 × 102 Calculating the molecules present. Therefore, The…

Q: A flask contains 0.200 mol of liquid bromine. Br2. Determine the number of bromine molecules present…

A:

Q: How many grams of H2 are needed to produce exactly 4.14 moles of NH3?

A:

Q: 71.071.0 mol of P4O10P4O10 contains how many moles of PP?

A: Given,Moles of  P4O10 = 71mol

Q: 4. How many moles of oxygen are used when 2.22 moles of carbon dioxide are produced? 10 6 c 11_0₂…

A: Answer:When a hydrocarbon is burned in presence of oxygen and formation of water and CO2 takes…

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.