how many formula units are in 500. g of lead oxide, chemical formula PbO2

Q: A salt crystal has a mass of 0.20 mg, How many NaCl formula units does it contain?

A: Given:Mass of NaCl = 0.20 mg = 2.0x10-4 g.Molar mass of NaCl = 58.44 g/mol.

Q: How many grams of S are in 15.0 g of (C3H5)2S

A:

Q: How many molecules are in sample? 85.26 g CCl4

A:

Q: How many formula units of MgBr, are in 18.91 g?

A:

Q: How many potassium atoms are in 0.986 g of potassium iodide?

A: Given, mass of KI = 0.986 g  One mole of any substance contains 6.023 x 1023 ions/molecules/atoms.

Q: How many molecules are contained in 7.35 mol NH3 ?

A: Here, we have to Calculate number of molecules present in 7.35 mol NH3.

Q: How many molecules are in 3.6 grams of NaCI?

A: Number of moles of a substance can be calculated as the ratio of given mass of substance to the…

Q: How many molecules are in one drop of water if 1.00 g of water contains 3.34 × 10 ²² molecules?…

A: 1 gm is equal to 1 mL. Given 1mL=20 drops.

Q: Calculate how many molecules of C13H18ClNO are in 200.0mg.

A:

Q: 5. How many molecules are there in 6.71 mol of glucose (C6H1206)? 1 mol = 6.02 x 1023 molecules

A: Final answer:- 4.04*1024 molecules

Q: How many molecules of sulfur trioxide are in 78.0 grams?

A: Given , mass of SO3 = 78.0 g Molar mass of SO3 = 80.06 g/mol

Q: How many moles of S are in 23.2 g of (C3H5)2S

A: Number of moles of (C3H5)2S is determined as follows,

Q: how many molecules are in 97.21 grams of sodium chloride NaCl?

A: I mol contains 6.023 × 1023 molecules. Number of moles = given mass/ molecular mass

Q: How many moles of MgS,O, are in 249 g of the compound? 249 g MgS,O, %3!

A: Solution Magnesium thiosulfate molar mass = 136.42 g.mol-1 Given in the problem mass of the…

Q: How many oxygen atoms are in 34.2 g of dinitrogen trioxide?

A: We have to find oxygen atoms are in 34.2 g of dinitrogen trioxide

Q: A substance has a molecular mass of 143151 u. Find the mass of one molecule of this substance.

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

Q: How many atoms are in 86.5 g of potassium dihydrogen phosphate (KH2PO4)?

A: Weight of postassium dihydrogen phosphate ( KH2PO4) = 86.5 grams Molecular weight of potassium…

Q: How many molecules are in 6.50 grams of NH3?

A: GivenMass of NH3 = 6.50 gMolar mass of NH3 = 17 g/molMoles of NH3 = Mass of NH3Molar mass of…

Q: how many oxygen atoms are contained in 6.24 moles of oxygen molecules

A: One mole of atoms contains 6.02 X 1023 atoms of oxygen. each molecule of oxygen contains two oxygen…

Q: How many molecules of H2O are contained in 360 g of H2O? How many atoms of H?

A:

Q: How many N2 molecules are in 473.2 grams of N2?

A: Given that   Amount of Nitrogen gas N2 = 473.2 grams The molar mass of Nitrogen N2 = 28 gm/mol To…

Q: how many atoms are in 355 mol Na

A: using mole concept we easily determine the presence of atoms , molecule and ions in species.

Q: How many formula units make up 20.0 gg of magnesium chloride (MgCl2MgCl2)?

A: Given, Mass of MgCl2 = 20.0 g

Q: How many aluminum atoms are in 3.78 g of aluminum?

A:

Q: Calculate the number of formula units of sodium sulfate, (Na2SO4), in 29.34 g.

A:

Q: How many formula units are in 108.65g of aluminum sulfate?

A: Given data, mass of Al2(SO4)3 = 108.65 g  molar mass of Al2(SO4)3 = 342.15 g mol-1  no. of formula…

Q: how many formula units in 7.69 grams of MgO

A: The formula unit is used to define the empirical formula. So we are basically asked to find how many…

Q: how many atoms of Ta are in 74.0 g Ta

A: Given a atoms of Tantalum (Ta) . Given quantity substance of gm. = 74.0 g We have calculate of…

Q: How many molecules of H2O are in 12.9 grams of H2O?

A: Given :- mass of water = 12.9 g  To calculate :- number of molecules

Q: How many moles of carbon atoms are in 4 mol of dimethylsulfoxide (C2H6SO) O 8 O 2 O 1 O 4 O 6

A: The chemical molecular formula of dimethyl sulfoxide is C2H6SO.

Q: Calculate the mass of N in 4.75 × 1023 formula units of Mg3N2

A: Given: Formula units of Mg3N2 = 4.75×1023 formula units

Q: How many molecules and atoms are in 3 moles of N,H, 24

A: Mole: It is defined as the ratio of moles to the molar mass mole=massmolar mass To calculate the…

Q: How many formula units are in 4.78 g of MgCl2

A:

Q: How many formula units make up 37.6 g of magnesium chloride (MgCl2)? Express the number of formula…

A: The calculation for finding the formula units of MgCl2 is as shown below:

Q: How many grams are in 5.11 × 10¹⁵ molecules of CO?

A: Given :- number of molecules of CO = 5.11 × 1015  To calculate :- mass of CO (in g)

Q: How many sodium ions are in 125g of NA2SO4

A: In chemistry, number of moles refers to a unit of amount. It can also be defined as the mass of a…

Q: How many atoms are in 73.3 g of sodium sulfate (Na2SO4) ?  It says there are seven atoms in a…

A: Applying concept of mole and avogadro concept.

Q: How many molecules are in 325 grams of iron chloride

A:

Q: How many formula units make up 35.8 gg of magnesium chloride (MgCl2MgCl2

A: The formula of magnesium chloride is MgCl2  hence the molar mass of MgCl2 is  = (24.30 + 2 × 35.45)…

Q: How many molecules of NaCl  are in 2.9 grams of NaCl?

A: From molar concept, it is clear that,1 mole of any substance contains Avogadro number of particles.…

Q: How many moles of oxygen atoms are in one mole of Na2SO4

A:

Q: How many formula units make up 32.4 g of magnesium chloride (MgCl2)?

A: Calculate the number of moles of magnesium chloride. Number of moles = Given massMolar massNumber of…

Q: How many moles of oxygen atoms are in 80.51 grams of nitrogen dioxide?

A: Given: Mass of Nitrogen Dioxide (NO2) = 80.51g To Calculate: Moles of Oxygen atoms

Q: How many water molecules are in 36 grams of water

A: Given,Mass of water = 36 gMoles of water can be calculated as:

Q: How many formula units are present in 500.0 g of lead(II) chloride?

A: Answer :- 1.084 × 1024  The formula units presents in 500.0 g PbCl2 = 1.084 × 1024…

Q: How many moles of hydrogen is in 13.3 grams of hydrogen

A: Find the solution below

Q: how many sulfur atoms are in 10 g of H2SO4

A: Given, amount of H2SO4 =10 gwe are asked to calculate the number of atoms of sulfur in 10 g of H2SO4…

Q: How many water molecules are in 23.7 g of water

A: Given,  mass of water = 23.7 grams Here, number of moles = mass of water / molar mass { molar mass…

Q: How many molecules are in 5.34g of (NH4)2SO4

A:

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.