The mass in grams of iodine in a sample of BaI 2 that contains 15.7 grams of barium is

Q: How many atoms of hydrogen are in a sample of glucose (C6H12O6 molecular mass = 180.12 amu/molecule)…

A: A sample of glucose is considered. The number of atoms of hydrogen present in the sample can be…

Q: How many grams of tin are present if there are 6.022 x 10^23 atoms present in a sample

A: Applying mole concept. Mole= w/M

Q: How many moles of titanium are contained in 71.4 g?

A:

Q: Calculate the mass % of O in beryllium perchlorate.

A: We have to calculate the oxygen % in beryllium perchlorate.

Q: how many Sn atoms are in a 48.7 g sample of Sn?

A:

Q: Mg(s) + 2 HCl(aq) −−−→ MgCl2aq) + H2(g)   given that the mass of magnesium is 0.030 g, find the…

A:

Q: How many moles of Phosphorus are present in 114.95 g of Phosphorus?

A: Given, mass of Phosphorus = 114.95 g Molar mass of P = 30.97 g/mol

Q: An unknown compound containing tellurium and bromine is analyzed and it is determined that 28.53% of…

A: Mass (%) of an element in compound = 100 x Mass of element/Mass of compound Number of moles =…

Q: A 1.912g sample of calcium chloride is decomposed into its constituent elements and found to contain…

A: The mass percent of elements is calculated using equation (1) where m is mass of element and M is…

Q: What is the mass of oxygen in a 782.9g sample of TiO2?

A: Step : 1          What is the mass of oxygen in a 782.9g sample of TiO2?

Q: What mass of ammonia gas (NH3) contains 2.8*10^24 hydrogen atoms?

A:

Q: An experiment requires that enough XeOF4 be used to yield 19.2 g of fluorine. How much XeOF4 must…

A:

Q: How many moles of barium are contained in 112.6 g of barium?

A:

Q: What is the mass of 1.33 moles of NO?

A: Number of moles = Mass/ Molar Mass Molar mass of NO = 30g/mol Number of moles = 1.33

Q: How many oxygen atoms are contained in a 5.525 g sample of calcium phosphate?

A: First of all, we will calculate the no. of moles of calcium phosphate in 5.525 g of sample and then…

Q: Flubberium (Symbol Fb) has a atomic mass of 50 grams, Vibranium (Symbol Vi) has an atomic mass of 25…

A:

Q: calulate the mass percent of magnesium (Mg) in magnesium nitride (Mg3N2)

A: Mass percentage of an element can be calculated by the division of mass of the element by the total…

Q: A sample of Mg(NO3)2 has a mass of 71.5 grams. how many atoms are in this sample? (molar mass is…

A: Mg(NO3)2 has a mass of 71.5 grams.  Molar mass of Mg(NO3)2 = 148.3 g/mol Formula used: Number of…

Q: How many GRAMS of nitrogen are present in 1.62 moles of nitrogen dioxide

A: A mole is expressed as the quantitative amount of a given substance that would contain 6.023 x 1023…

Q: How many grams of C are present in 4.84 grams of carbon dioxide ?

A: We have to find grams of C are present in 4.84 grams of carbon dioxide

Q: Suppose you have a sample of sodium weighing 11.74 g. How many atoms of sodium are present in the…

A: The number of moles (n) of sodium present in the given sample is calculated from the expression (1).…

Q: Calculate the number of atoms of Fe in a sample with mass = 1899 amu.

A: A sample of Fe of mass  1899 amu.The number of atoms of Fe in a sample is to be calculated.

Q: 20)A 10 g sample of which substance contains the greatest number of hydrogen Atoms? 

A: [A.] 10 g of PH3  Molar mass of PH3 = 33.997 g/mol  Number of moles of PH3 = 10 g / 33.997 g/mol  =…

Q: Calculate the mass in grams of 14 atoms of Ca.

A:

Q: How many atoms are in 20.5 g of carbon-12?

A: We know that, 1 Mole = 6.023 X 10^23 Atoms / Molecules /Ions Number of moles = Given mass / Molar…

Q: Explain the difference between atomic mass (amu) and molar mass (g).

A: Atomic mass unit(amu) is the mass unit of an atom.

Q: How many moles of Cs are contained in 595 kg of Cs?

A: Here we have to calculate how many moles of Cs are contained in 595 kg of Cs

Q: How many grams of O are in 565 g of Na, O? mass: g

A: Mass of Na2O = 565g  Molar mass of Na = 23g/mol Molar mass of O = 16g/mol  Molar mass of Na2O =…

Q: calculate the mass, in grams, of 532 atoms of potassium, K (1 mol of K has a mass of 39.10g).

A:

Q: How many moles of magnesium are present in 3.01 grams of magnesium?

A: Magnesium is an which is having atomic No. 12. It is an important mineral. It has role in enzyme…

Q: How many atoms arc in 157 grams of H2?

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: A sample of trifluoroacetic acid, C,HF,02, contains 25.3 g of fluorine. Calculate the mass of the…

A: One molecule of C2HF3O2 contains 2 atoms of carbon, 1 atom of hydrogen, 3 atoms of fluorine and two…

Q: What is the mass percent oxygen in the molecule NO2?

A: We Know that, Molar mass of NO2 = 46.0 g/mol Molar mass of O2 = 32.0 g/mol

Q: If a sample of N2O4 contains 19 g of nitrogen (N), how many moles of N2O4 are in that sample?

A: Since in 1 mole of N2O4 we will have 2 moles of N Hence moles of N2O4 = moles of N / 2  Since moles…

Q: calculate the mass of 600. atoms of nitrogen

A: The molar mass of any substance is the mass of 1 mole of that substance. The unit of molar mass is…

Q: Calculate the mass % of O in lithium permanganate.

A: Mass percentage is the term used to calculate the concentration of any element in the given…

Q: Calculate the mass in grams of 422 atoms of potassium K

A:

Q: how many atoms of Na are in 48g of Na?

A: Molar mass of a compound ican be defined as the mass of compound divided by the amount of that…

Q: how many atoms are in 102.1 g of sodium?

A:

Q: mass

A: 0.415 mol sample of MnX2O7 has a mass of 85.14 g.  What is X?

Q: Consider a 3.55 g sample of C4H10. How many atoms of C would be in this sample?

A: Molar mass of C4H10  = 58 g/ mol Fraction of  C = 48/58 = 0.8276

Q: How many grams of S are present in 2.10 grams of sulfur tetrafluoride ?

A:

Q: How many hydrogen atoms are in a 12.2 g sample of ammonia?

A:

Q: How do you calculate the mass of Hydrogen in 12.00 g of NH3?

A: Given:Mass of NH3 = 12.00 g.Molar mass of NH3 = 17.031 g/mol.

Q: Calculate the mass, in grams, of 202 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

A: The general unit conversion for atoms to mass in grams is as follows,

Q: Given 500 kg/m3 H2SO4, what are the amounts of H2 and SO4?

A:

Q: Calculate the mass of 400. atoms of sulfur (S)

A: Given: Number of atoms of S = 400 atoms.

Q: How many gold (Au) atoms are there in a 5.0 g sample of that is 50% Au by mass?

A: Answer: 7.6421 × 1021 number of gold (Au) atoms are there in a 5.0 g sample of that is 50% Au by…

Q: How many atoms of Lithium are in 1.00g?

A: The detailed calculation to calculate number of atoms of lithium in 1 gram of Li is provided in a…

Q: A 20.0 g sample of Ca contains how many calcium atoms?

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.