Part B How many grams are in 0.290 mole of Cl2 ? Express your answer to three significant figures.

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: What is the mass, in grams, of 2.70×10−3 mol of ammonium phosphate?         Express your answer…

A: Molecular Formula and Molar Mass Ammonium phosphate has molecular formula (NH4)3PO4 .  Molar mass of…

Q: The density of water at 4.00°C is 0.967 g/mL. How many molecules of water are present in a 499.8 mL…

A: Given; density of water at 4.00Co=0.967 g/mL present volume of water we have=499.8 mL moles of water…

Q: Determine the mass of oxygen in a 3.8-g sample of Al2(SO4)3. Express your answer to two significant…

A: Given, Amount of sample is 3.8 g. Molar mass of Al2(SO4)3 is:

Q: The chemical formula for calcium hydroxide is: Ca(OH)2 Calculate the molar mass of calcium…

A: we need to calculate the molar mass of Ca(OH)2

Q: How many moles are in 239 g of iron?

A: Given :- mass of iron = 239 g  To calculate :- number of moles of iron

Q: Determine the mass of oxygen in a 3.6-g sample of Cr2 (CO3)3. Express your answer to two significant…

A: We have to determine  the mass of oxygen in a 13.6 g sample of Cr2(CO3)3.

Q: Ibuprofen, the anti-inflammatory drug in Advil, has the formula C13H18O2 What is the empirical…

A: Ibuprofen is an anti-inflammatory drug

Q: The chemical formula for propane is: CH,CH,CH, Calculate the molar mass of propane. Round your…

A: Molar mass of compound is sum of molar mass of each atom.

Q: Convert 1.23 x 104 atoms of carbon to moles of carbon. 1.23 x 104 atoms = mol C

A: Given,  No. Of atoms of carbon = 1.23 × 1024

Q: How many molecules are there in 62.3 g of water? You will need to divide your answer by 1.0x10^23

A: Given:  Mass of water = 62.3 g

Q: What is the mass, in grams, of 9.53 x 10" molecules of methanol (CH, OH) ? mass:

A:

Q: Dinitrogen oxide (or nitrous oxide), N2O, also known as laughing gas, is widely used as an…

A:

Q: The chemical formula for diethyl amine is: (CH;CH,),NH Calculate the molar mass of diethyl amine.…

A: The chemical formula of diethyl amine is given as (CH3CH2)2NH.

Q: The chemical formula for lithium hydride is LiH. A chemist measured the amount of lithium hydride…

A: Detail mathematical calculation is shown below

Q: Convert 5.26×1021 platinum atoms to moles. Express your answer in moles to three significant…

A:

Q: The chemical formula for hydrogen bromide is HBr. A chemist determined by measurements that 0.030…

A: Given data -: Number of moles of HBr -: 0.030 moles  Molecular weight of HBr -: 1+80 = 81 g/mol…

Q: The chemical formula for dimethyl ether is: CH;OCH3 Calculate the molar mass of dimethyl ether.…

A: The mass of one mole of a substance is known as molar mass. The molar mass of the sum of the masses…

Q: How many moles Fe(OH)3 are there in 229 g of Fe(OH)3? Round your answer to 2 decimals.

A: Given mass of ferric hydroxide (Fe(OH)3 ) is  229 grams.

Q: What is the mass in grams of 9.35 x 1024 molecules of CO2 ? Please express in decimal form, not…

A: Given- Molecules of CO2 = 9.35 x 1024 To find - Mass of CO2 in grams

Q: mass in grams of  1.74 x 10^24 atoms of beryllium

A:

Q: Do the following calculations involving moles and molar masses: 1.  How many moles of NH3 are there…

A: Given,1.  5.0×1024 molecules of NH3 number of moles is:2. Mass of one molecule of NH3  is3. Mass of…

Q: How many C atoms are present in the sample of C3H8 with mass 7.11 g? Avogadro's number is 6.022 x…

A: Given : Mass of C3H8 = 7.11 g

Q: Calculate the total number of oxygen atoms in 65.0 g of KClO3. Express your answer in scientific…

A:

Q: A sample of Mg(NO3)2 has a mass of 71.5 grams. What is the molar mass of the Mg(NO3)2 please report…

A: No. Of moles = given mass ÷ molar mass

Q: 4.8×1025 O3O3 molecules Express your answer using two significant figures.   Calculate the mass in…

A: Check the relation for molecules to moles and then convert that moles into the mass.

Q: What is the mass of 3.5 x 10^-3 molecules of copper (II) carbonate? Use correct significant figures…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: How many grams

A:

Q: 4.88×1020 H2O2H2O2 molecules Express your answer using three significant figures.    Calculate the…

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Also, Number of atoms…

Q: How many grams of ClCl are in a 38.0-g sample of the chlorofluorocarbon CF2Cl2? Express your answers…

A: Given: Mass of CF2Cl2 = 38.0 g.

Q: Determine the mass of oxygen in a 6.8-g sample of Al2(SO4)3. Express your answer to two significant…

A: Given: mass of Al2(SO4)3 = 6.8 g molar mass of Al2(SO4)3 = 342.15 g/mol molar mass of O = 16.0 g/mol

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: We have to determine the moles of H

Q: mass

A:

Q: How many grams of ClCl are in a 38.0-g sample of the chlorofluorocarbon CF3Cl? Express your answer…

A: Given :  Mass of sample = 38g

Q: The chemical formula for octane is: CH3 (CH₂) CH3 Calculate the molar mass of octane. Round your…

A: Since, Molar mass of the compound is the sum of molar mass of each atom present in the molecule.…

Q: A molecular compound has the formula C12H12O2.  How many grams of this compound would you need to…

A: We have given, Mole of compound= 0.0800 mol Mass of compound=?

Q: How many moles are in 8.9 x 10^26 molecules of C6H12O6? Express in decimal

A: 1 mole  of any atom / molecule consists avogadro number. Avogadra number NA = 6.022× 10 23

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.