-6. How many hydrogen atoms are there in 0.75 mol of C,H10O? offomg nem anom Las (u nis 7. How many oxygen molecules are in 2.40 g of O2(g)?

Q: How many atoms of sulfur are in 279 g of Na₂S₂O₃ ?

A: Given , Mass = 279 g Molar mass of Na₂S₂O₃= 158.11 g/mol

Q: How many carbon atoms

A:

Q: What is the mass grams that are in 5.76 × 10²⁵ molecules of I₂?

A: Number of moles = Number of molecules/(6.0224 x 1023) Mass = Number of moles x molar mass

Q: How many atoms of O there in 30.6 grams of cadmium (II) phosphate?

A: Ans : 2.79 × 1023 atoms of O

Q: element b forms a chloride BCl3 containing 46.62% chlorine by mass. what is the identity of this…

A: Consider the molecular mass of the compound BCl3 which is formed by the combination of an unknown…

Q: 3.11  mL of seawater contains about 1.31×10-14  moles of gold, how many atoms of gold are in that…

A:

Q: In 0.45 moles of CaCo3. How many Ca +2 ions are there?

A: moles of CaCO3 is 0.45 mol We have to find Ca +2 ions in CaCO3  1 mol = 6.022 × 1023 ions/ atoms

Q: How many moles of barium cyanide are present in 2.50 grams of this compound Ba(CN)2 ?

A: Given data : Mass of Barium cyanide Ba(CN)2 = 2.50 gms Molecular mass of Ba(CN)2 = 189.36 gm/mol

Q: How many moles of O2-  ions are there in 0.550  moles of aluminum oxide, Al2O3?

A: Given,  Number of moles of Al2O3 = 0.550 mole  Number of moles of O2- = ?

Q: MgSO4•7H2O what is themolar mass g/mol?

A: We can calculate the molar mass of MgSO4•7H2O by adding the mass of all atoms which are present in…

Q: What is the mass of the compound C8H18 (Mm = 114.26 g.mol-1) that contains 7.20x1022 hydrogen atoms?

A: Given :- molar mass of C8H18 = 114.26 g.mol-1  Number of H atoms = 7.20 × 1022 atoms   To calculate…

Q: How Many Atoms Of Sulfur Are Present In 3.0 Moles Of Al(SO4)3?

A: Given :-  Number of moles of Al2(SO4)3 = 3.0 mol  To calculate :-  Total number of S atoms    Note…

Q: What is the formula mass of Al2(SO4)3?

A: The formula mass of a compound depends on its one formula unit. The atomic mass of all the…

Q: How many molecules are in 75.8 g of C6H12O6 ?

A:

Q: How many atoms of Oxygen (O) are in 3.25 g K2Cr2O7 (MM = 294.19 g/mol)?

A: Molecular weight of one molecule of K2CrO7 = 294.29g One molecule of K2CrO7 contains 7 atoms of…

Q: What is the molar mass of N2O4? Na2SO4? C6H10O2?

A: 1. Molar mass is a quantitative method to calculate the total mass of all the atoms associated for…

Q: How many oxygen atoms are in 2.50 moles of C6H12O6?

A:

Q: Calculate the mass (in g) of 1.2 x 1024 atoms of molybdenum, Mo.

A: using mole concept , easily determination of atoms , molecules and ions possible.

Q: What is the mass of carbon present in 0.283 grams of propane (C3H8)?

A: Given data :  Mass of propane = 0.283 gram  To find : Mass of carbon present in 0.283 grams of…

Q: How many atoms in total are there in one molecule of Mg(NO3)2?

A: In a molecular formula, symbols of all the constituting atoms are shown along with their numbers in…

Q: What is the mass of carbon present in 0.196 grams of propane (C3H8)?

A:

Q: How many atoms of H are in 7.00 moles of glucose (C6H12O6)?

A: This question is related to stoichiometry. In the given question, it has been asked to calculate the…

Q: How many moles of carbon atoms are there in 4.00 mol of C8H18?

A: No. of moles of C8H18 = 4.00 mol (Given) 1 mol of C8H18 contains 8 mol of carbon atoms.

Q: How many moles of white phosphorus, P4, are in 98.40 g?

A: Molecules are made up of two or more than two atoms.We have been given white phosphorus, P4 and we…

Q: What is the mass of 0.00210 moles of K2CO3?

A: Given data: Number of moles of K2CO3 = 0.0021  Formula used: Moles=Given massMolar mass

Q: How many molecules are there in 345.2 grams of HCl?

A: 1 mole = 6.022×1023 (Avogadro's number) The mass of one mole of molecules of a substance is called…

Q: How many moles are there in 284.65 g of H2CO3?

A: Given, the amount of H2CO3 =284.65 gramwe are asked to calculate the number of moles of H2CO3molar…

Q: How many individual oxygen atoms are there in 0.1488 g of phosphoric acid (H3PO4)?

A: To solve this problem we have to find the mole of phosphoric acid and then we will able to calculate…

Q: How many oxygen atoms are there in 50 g of sucrose (C12H22O11).

A: Mass of sucrose = 50 g  Formula of sucrose = C12H22O11

Q: How many moles of iodine atoms are there in a sample that consists of 1.35e+23 molecules of…

A: Mole=no of molecule÷6×1023 Mole=1.35×1023÷6×1023 Mole= 0.225 1 mole iodine elememental have 2 mole…

Q: How many atoms are in 55.3 g of potassium bromite (KBrO2)?

A: Given, mass of potassium bromite (KBrO2) = 55.3 g Total number of atoms = ? Note; molar mass of…

Q: How many atoms of oxygen are in 2.7 moles of Mg(NO3)2 ?

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

Q: How many moles of ibuprofen contain 1.62 x 10^23 atoms of C?

A: To find the number of moles of ibuprofen that has the given number of carbon atoms.

Q: 30 How many grams of Mo(SO3)3 are in 1.60x1023 molecules of Mo(SO3)3?

A: Given, molecules of Mo(SO3)3 = 1.60*1023 Grams of Mo(SO3)3  = ? One mole on any substance contains…

Q: How many molecules of ammonium nitrate, NH4NO3,  are there in 3.96 moles of ammonium nitrate?

A: Given : Moles of NH4NO3 = 3.96 mol

Q: How many molecules of C2H6 are there in 21.4 g of C2H6?

A:

Q: How many moles of carbon atoms are there in 0.21 mole of C2H6?

A:

Q: How many atoms of each element (C, H, O) are present in 12.6 g of C12H22O11?

A:

Q: How many carbon atoms are in 200 benzene (C6H6) molecules?

A:

Q: How many moles of P2O5 are there in 94.5 g P2O5?

A: Ratio of mass to molar mass is called as mole of substance.

Q: How many grams of diazine (N2H2) are there in 1.351.35 mol of the compound?

A: Given:Number of moles = 1.35 molesMolar mass of diazine = 30.02928 g/mol.

Q: Which is the correct mass percentage of hydrogen in acetamide, C₂H₅NO?

A:

Q: How many molecules of isolentyl acetate (C7H14O2) are there in 5.00 grams?

A: 2.31 x 1022 molecules

Q: What is the mass of 29.4 mol of benzene (C6H6)?

A: Mole is a unit of measurement to represent the amount of substance. It can be expressed as,…

Q: How many moles of C are there in a sample that contains 6.54×1022 carbon atoms? How many carbon…

A: The objective of the question is to find out the number of moles of carbon in a given sample and the…

Q: What is the mass of Li+ in 50.25 g of Li2CO3 ?

A: The concept of stoichiometry is used to solve the given question. The moles have to be calculated…

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.