1. How many molecules are there in 1.2 moles of Cu (NO3)2?

Q: How many molecules are there in 2.30 grams of NH3?

A: Number of molecules = moles X Avogadro's number  And moles = mass / molar mass  Avogadro's number =…

Q: How many atoms there in 5 molecules of hydrogen peroxide, H2O2?

A: Given, 5 Molecules of H2O2  One mole of any substance contains 6.023*1023 atoms/ions/molecules.

Q: How many moles are there in 825 of Al(OH)3?

A: We have given   825 g  of  Al(OH)3  Molar mass of Al(OH)3 (M) = 27 + 3(16+1)            M = (27 +…

Q: what is the mass in grams of 10 molecules of C3H5(NO3)3?

A: Mass = mole × molar mass

Q: 3. How many moles are there in 2.22 x 10ª g of (NH4)2SO4?

A:

Q: 7. How many molecules are there in 24.0 g of ethylene glycol, HO(CH)OH?

A: The number of moles is defined as the ratio of the mass of a substance to its molar mass. Number of…

Q: How many grams of (O,) are there in 2.5 moles of Ca(NO,)1

A: Mole is defined as the ratio of given mass and molar mass. The unit of mole is mol. It is utilized…

Q: g. If the chemical reaction produces 2.19 x 102 grams of AlCl3, then how many moles of MgCl2 were…

A: Since, you have asked multiple questions, so I will solved first question for you step by step in…

Q: A sample contains 3.23 * 10 ^ 25 molecules of CO 2 . What would be the mass of that sample, in…

A:

Q: What is the mass of 1.00 mol of Ni(CO)4? How many moles are in 3.22 g of Ni(CO)4?

A: (a). Given: The moles of =1.00mol The molar mass of Ni(CO)4=170.73g/mol

Q: How many molecules are there in 122 grams of NO2?

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass. Write…

Q: If we want to make 2.5 moles of NH3, how many grams of nitrogen will we need?

A: The balanced chemical equation for the reaction that produces ammonia (NH3) from nitrogen (N2) and…

Q: how many hydrogen atoms are there in 80.0 g of phosphoric acid?

A:

Q: 3) How many atoms are contained in 0.98 moles of iron (Fe)? 4) How many moles of cesium are in 66.45…

A: For question 3, we have to find the number of atoms in 0.98 moles of iron. For question 4, we have…

Q: 2. How many moles of Pb is 9.3 x 1015 atoms of Pb?

A: Number of atom of pb = 9.3×10^15 atoms

Q: How do i Calculate the mass, in grams, of 422 atoms of potassium, K (1 mol of K has a mass of 39.10…

A: 1 Mole of any substance contain 6.023 x 1023 entities  (entities = atoms/ions/molecule) 1 mole of…

Q: 3. How many molecules are there in 24 moles of FeF3?

A: Given values are,  Moles of FeF3 = 24 mol

Q: How many atoms would there be in 6.18x106 g of chlorine, Cl2?

A: Given, Mass of chlorine gas (Cl2) = 6.18 × 106 g Number of atoms are there in 6.18 × 106 g of…

Q: How many molecules of MgCl2 are there in 5 moles?

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: 2. How many moles of carbon dioxide are there in 443.5 grams?

A:

Q: How many grams of Zn(NO3)2 are there in 5.0 moles of Zn(NO3)2?

A: Given data,          Moles of Zn(NO3)2 = 5.0 moles Molar mass of Zn(NO3)2 =…

Q: 6. How many moles are in 4.1 x10 22 molecules of NaCI?

A: Since you have asked multiple question, we will solve the first questionfor you. If you want any…

Q: What is the mass , in grams, of 6.62 moles of Ca(NO3)2?

A: Molar mass of Ca(NO3)2 = 40 x 1 + 14 x 2 + 16 x 6 = 40 + 28 + 96 = 164 g/mol Moles of Ca(NO3)2  =…

Q: How many moles are in 2.5 x 1025 molecules of Fe?

A: mole interms of particle :       1 mole of any substance = 6.022 x 1023 particles  this number is…

Q: How many molecules are there in 12.5 g of NaOH

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: What is the mass of 3.119 moles of Ca(OH)2 ?

A: Since mass = molar mass X moles  And molar mass = sum of ( Atomic mass X number of atoms )  Since in…

Q: What is the mass in grams of 1.44 × 10²⁵ molecules of I₂?

A: The number of moles of a substance is determined as the number of molecules, atoms or ions upon the…

Q: How many moles are in 2.45 x 10^23 molecules of Na2S?

A:

Q: How many aluminum atoms are in 25.0 grams of aluminum oxide, Al2O3?

A: The formula of the given compound is Al2O3. One mole of Al2O3 contains two moles of Al atoms.

Q: How many moles of hydrogen are in 3.06 x 10 g of glycine, C,H;NO,?

A: Given, Mass of glycine = 0.00306g

Q: 4. a) How many particles ( b) What is the mass in grams of that salt? )are there in 1.25 moles of…

A: No. of particle = mol * NA     where NA is Avogadro number.

Q: How many atoms of hydrogen are in 230  g of hydrogen peroxide ( H2O2)?

A:

Q: How many moles are in 1.72 x 1023 molecules of CO?

A: The number of molecules in one mole of a substance is equal to the Avogadro's number.

Q: How many grams is a sample of 0.863 moles of zinc nitrate, Zn(NO3)2?

A: To convert from moles to mass, first, calculate the molar mass of Zn(NO3)2 and then use that to find…

Q: 1) How much does 0.28 mol of iron weigh? 2) How many molecules are in 116 g CCl4? 3) What is the…

A: 1) Given : Moles of iron = 0.28 mol.

Q: 11) What is the mass of 2.25 moles of the Zn(CIO3)2 molecule?

A: Number of moles = Mass / molar mass

Q: How many chlorine atoms are there in 8.4 mol of PCl5?

A:

Q: How many moles are present in 300 grams of Zn3 (PO4)2 ?

A: Given : Mass of Zn3(PO4)2 = 300 g

Q: How many moles and atoms of 40K are there in 3.29g 40K?

A: The mass of 40K is = 3.29 g The molar mass of 40K = 39.964 g/mol Moles of 40K is =? The number of…

Q: 1. How many moles would contain 12.0 g of P ? 2. Find the mass (in grams) 7.7 X 1023 molecules of…

A: 1. Given values , Mass of P= 12.0 g Molar mass P= 30.973762 g/mol

Q: How many atoms of iron are there in 2.01 moles of wolframite, FeWO4?

A: Given,Moles of FeWO4 = 2.01 mol1 mole of FeWO4 contains 1 mole of iron (Fe). Therefore, 2.01 moles…

Q: How many nitrogen atoms are present in 0.150 mol of Zn(NO3)2?

A: Since in each molecule of  Zn(NO3)2 we have 2 atoms of N Hence in 1 mole of Zn(NO3)2 we will have 2…

Q: How many moles are there in 0.684 g MgCl2?

A: The compound given is MgCl2  Molar mass of MgCl2 = Atomic mass of Mg + 2 X Atomic mass of Cl = 24.3…

Q: 3. How many atoms are in 1.45 g of Ag?

A:

Q: How many moles are 3.604 x 1024 molecules of Co(NO3)2?

A: Given, 3.604 x 1024 molecules of Co(NO3)2

Q: 4. How many molecules are in 2.5 mole H,O?

A: Any  1 mol of substance  always contains avogadro number of molecules.

Q: What is the mass in grams of a single atom of Br? x 10

A: Given : Number of atoms of Br = 1

Q: 2. In 4.23 moles of nickel, how many atoms will you have?

A: Answer 2)  Number of moles of Nickel = 4.23 moles Number of atoms = ?

Q: How many molecules are there in 7.28 moles of carbon tetrachloride, CCI4?

A: Given,  7.28 mol CCl4

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.