che mass of CC

Q: What is the mass of 4 moles of helium, He

A: A mole is a unit of measurement in chemistry that represents a certain number of atoms or molecules.…

Q: How many moles of He are 221,000 He atoms?

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

Q: Consider a sample containing 0.330 mol of a substance. How many atoms are in the sample if the…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: Determine the mass of 0.50moles of lead

A: Given: Moles of Lead (Pb) = 0.50 mol. Molar mass of Lead = 207.2 g/mol

Q: What is the formula for mass

A: For liquids, mass can be calculated from the below formula.

Q: How it is useful and important the knowledge of mass percent and morality calculation in healthcare…

A: Mass percent is the measurement of an element in the molecule,compound or tablet in case of…

Q: 24 2) How many moles are equal to 4.79X10 molecules of CO?

A: Here, we need to solve the Second Question. Therefore, the answer to the Second Question is given by…

Q: PART B. Spectrophotometrilc Determination of the Copper Content of a Penny Mass of penny:3.138 Date…

A:

Q: Payalben

A: The objective of the question is to calculate the percent composition of compound 1 when the areas…

Q: How many grams of Cl are in 595 g CaCl, ? mass: g

A: Molecular weight of Ca = 40 and Cl = 35 Mass of 1mol CaCl2 is = ( 40+70) = 110 In 110 g CaCl2 ,…

Q: What is the percent mass of oxygen in NO3-

A: The  percent mass of oxygen in NO3- is calculated as,

Q: 1.25 moles of PbO2 have a mass of

A: Given  Number of mole of PbO2  = 1.25 mole  Mass = ?

Q: Part of the second question how are moles used to determine everything?

A: The given problem is based on the mole concept.

Q: Theoretically, should the experimental mass percent water values for everyone who used the same…

A: Answer is yes  If everyone is calculating the percent mass of water in the same hydrate the answers…

Q: 2.7 grams of nitrogen can make the maximun mass of how much ammonia

A:

Q: 9) Na2CrO4 # of molecules: # of elements: Name of element: # of atom Total # of atoms:

A: Sodium chromate is the inorganic compound having chemical formula of Na₂CrO₄.

Q: pure density liquid A. 31. What is the density of a mixture that is 2.3 moles A and 2.7 moles B?…

A:

Q: How many miles of O atoms are in 18.1 mol if CH2O

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: None

A: In getting the percent composition of one element in a compound, we have to first get the total…

Q: Determine the formula weight of SrCl₂. Provide an answer to two decimal places.

A: Formula weight is the sum of the atomic weights of all atoms appearing in a given chemical formula.

Q: HO octz if It 30

A:

Q: What is the mass of a sulfur hexafluoride molecule ? grams

A: Molecular formula for Sulphur hexafluoride is SF6

Q: It is asking for mass. How do I convert that to g?

A: We know that relation between number of moles and mass is given as :    Number of moles =   Mass of…

Q: Hi, for the No. of Moles = given mass/molar mass why would you multiply the given mass by 1000?

A: A millimole is one-thousandth of a mole. Mathematical representation is mmol is equal to mol/1000.

Q: Acetaminophen has the formula C8H9O2N Calculate the mass, in grams, of a .30 mole sample:…

A: Given data, No. of moles = 30 mol Molecular mass of acetaminophen = 151.163 g/mol To calculate the…

Q: How many grams of H2SO4 are present in 9.4*1024 formula units of H2SO4 ? Round your answer to 1…

A: Given:- No of formula units of H2SO4 = 9.4 * 1024 Mass of H2SO4 present = ?

Q: What mass of KO, produces 235 g of 0,?

A:

Q: Measurements show that unknown compound X has the following composition: element mass % zinc 75.5%…

A: Given‐Unknown compound X has 75.5% Zn  and 24.7% O,then,Zn-75.5/65.4=1.154O-24.7/16=1.543

Q: round answer to three significant figures. The formula of sodium nitrate is NaNO3. determine the…

A:

Q: A 3.20 mol sample of aluminum represents how many atoms?

A: Number of atoms = moles of Atom X Avogadro's number  where Avogadro's number = 6.022 X 1023

Q: 330 hydrogen with unlimited amount of nitrogen makes?

A: Nitrogen reacts with hydrogen to form ammonia. The equation for the balanced chemical reaction is…

Q: How many atoms are in 19.1 g of lithium hypochlorite (LİCIO)?

A: Lithium hypochlorite has a molar mass of 58.4 g/mol This means that 1mol of LiClO has a mass of…

Q: PE RCENT C 19) Determin the the fo a) C,„H2 12 22

A: mass of C = 12 g/mol

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.