a) why is the atomic mass of iron the same as the molar mass of iron? b) Describe how you calculate the molar mass of Fe(NO2)3

Q: 3,11 A. How many moles of FeSO4 are present in a 260 mg tablet? B. How many iron(II) ions?

A: Formula used: Number of moles=Given massMolar mass Number of atoms/molecules/ions=number of…

Q: Cyanogen gas, C2N2 has been found in the gases in the outer space. It can react with fluorine to…

A:

Q: Calculate the molar mass of Ba(CIO3)2

A: The overall mass of one molecule of a substance is generally known as molecular mass (or molar…

Q: Calculate the number of moles of magnesium, chlorine, and oxygen atoms in 4.90 molesmoles of…

A: Given compound is Magnesium perchlorate Mg(ClO4)2. & given number of moles of Mg(ClO4)2 = 4.90…

Q: Bauxite, the principal ore used in the production of aluminum, has a molecular formula of…

A: Bauxite has a chemical formula of Al2O3·2H2O

Q: a. How many N2 molecules are contained in 3.77 mol of. N2? N2 molecules b. How many N atoms are…

A: We have to calculate the number of N2 molecules in 3.77 moles of N2 as follows in step 2:

Q: Ethanol, C2H5 OH, burns with the oxygen in air to give carbon dioxide and water. C2 H; OH(1) + 3O2…

A: Balanced Reaction : C2H5OH (l) + 3O2 (g) → 2CO2 (g) + 3H2O (g)

Q: A. How many moles of sulfur are present in 3.5 moles of Al2(SO4)3? B. How many moles of aluminum…

A: A. Moles of sulfur present in 3.5 moles of Al2(SO4)3 can be calculated as follows:

Q: How many molecules are in 2.34 mol of Cr(NO2)3?

A: Number of moles is equal to the ratio of mass to molar mass. One mole of an atom contains Avogadro…

Q: sing this equation: P4 + 6F2-4PF3 and the BCA table below, how many moles of P4 are needed to…

A: we have to calculate the moles of P4 needed

Q: Item 3 3 of 25 Part B Calculate the molar mass for MngO4, an oxide of manganese. Express your answer…

A: Trimanganese tetroxide Mn3O4- This compound is the oxide of Manganese. It is called Hausmannite. It…

Q: Freon-12 (CCI2 F2) is used as a refrigerant in air conditioners and as a propellant in aerosol cans.…

A:

Q: 4. Vitamin C (molar mass 176.12 g/mol) is a compound of carbon, hydrogen, and oxygen. When of…

A: To  solve this problem first we will calculate the mass of C, H and O . Then we will calculate the…

Q: H2C2O4. What amount is represented by 18.0 g of oxalic acid? How many molecules of oxalic acid are…

A: No of molecules=mole × avagadro number

Q: If you have 10.00g of MgNH4PO4 • 6H2O, how many moles of MgNH4PO4 • 6H2O are there? How many moles…

A: Given: Mass of MgNH4PO4 • 6H2O = 10 g Molar mass of MgNH4PO4 • 6H2O = 245.406 g/mol

Q: How many GRAMS of carbon are present in 4.07 moles of carbon tetrachloride, CCl4?  grams  How many…

A: Molar mass of C= 12 g/mol Molar mass of CCl4 = 153.82 g/mol Number of moles = mass ÷ molar mass

Q: How many grams would 1.75 moles of this compound be?

A: Number of moles = mass/molar mass  Mass = number of moles × molar mass

Q: N2 + O2 —> 2NO How many grams of N2 are required to produce 6 moles of NO?

A: In  order to calculate the mass of NO firstly we need to calculate molar mass of NO then we can…

Q: How many grams would 8.6 moles of sulfuric acid (H2SO4) weigh? Question 10 5.2E23 molcculcs of hand…

A: The given data contains, number of moles = 8.6 moles.

Q: 2. Determine the number of moles in each of the following. a. 4. 26 g of ammonia, NH3 b. 113.5 g of…

A: Molar mass - It is the mass of 1 mole of anything. 1 mole of anything is equal to 6.022 x 1023…

Q: 4. How many moles of Vitamin E ( the formula is written down) are present in 10.0 g of Vitamin E?

A:

Q: How many molecules of phosphorus pentoxide are there in 7.80 moles of phosphorus pentoxide? a. 4.70…

A: One mole of a substance is equal to 6.023 x 1023 units of that substance. ( Such as atoms, molecules…

Q: 39.  A compound of carbon and hydrogen contains 92.3% C and has a molar mass of 78.1 g/mol. What is…

A: The percentage of Hydrogen is calculated as, 100-92.3 = 7.7%The percentage represents ‘parts per…

Q: How many atoms of oxygen (O) are there in 15.0g of H2CO3?

A: The molecular formula of a compound represents one mole of its molecules. So,  H2CO3 represents one…

Q: 3.B) Determine the number of moles and mass of Al(OH)3 produced.  Al2(SO3)3 + 6NAOH -> 3Na2SO3 +…

A: The part (b) is related with part (a), so for solving (b), information of part (a) should be…

Q: moles

A: The above reaction is called Haber's process.  In the Haber process, atmospheric nitrogen (N2) is…

Q: The molar mass of iron is : M(Fe)=56 g.mol^ -1 a) Calculate the number of atoms present in 0.28g of…

A: We have to calculate the number of atoms in 0.28 g of Fe. Also we have to calculate the mass of Fe…

Q: Worksheet 2: The Mole and Chemical Quantities 1) What is the molar mass of ammonium sulfate? 2) a)…

A: Since you have asked multiple questions we will solve the first one for you.  If you want answer to…

Q: What is the mass in gram of oxygen atoms in 0.305 mol Fe2O3?  (Molar mass of O = 16.00 g/mole)…

A: Given :  Moles of Fe2O3 = 0.305  Molar mass of O = 16.00 g/mole

Q: Glutamine (CsH,10N203) is an amino acid that is used in the biosynthesis of proteins. Find out…

A:

Q: How many moles is 2.45e24 molecules of Oswegium pantheride?

A: 1 mol of any substance contains 6.023 × 1023 number of molecules

Q: How many moles of electrons are in 0.03 moles of Zn+2 ions

A: Given : moles of Zn2+ ions = 0.03 mol

Q: Calculate the number of moles of Cl atoms in 2.41×1024 formula units of magnesium chloride, MgCl2

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

Q: Calculate the following: (a) mass in 1.73 mol of CaH 2 (b) moles of mg (NO3) 2 in 3.25 g of…

A:

Q: 6. How many molecules of C3H8 are in a sample of 1.5 mol? 7. How many molecules of carbon dioxide…

A:

Q: A sample of aspirin (acetyl salicyclic acid) of molecular mass 180, on analysis was found to contain…

A: Given data contains, Mass percentage of carbon in aspirin is 60%. Mass percentage of hydrogen in…

Q: How many oxygen atoms are on the right-hand side of the following chemical equation? 4FES2(s) +1102…

A: Number of Oxygen atoms means number of O atoms present.

Q: Find out the molar mass of Fe ( NO3) 3 .

A: Iron (III) nitrate: The inorganic compound that bears the molecular formula Fe(NO3)3 is iron (III)…

Q: Determine the molar mass of the following compound, Iridium(III) selenate ??

A: The given compound is made by  Selenate ion - SeO4-        +    Iridium ion- Ir+3 The compound…

Q: Given the unbalanced chemical equation, C5H12(1) + O2(g) → CO(g) + H20(1), which one of the…

A: Balanced equation is the equation in which the atoms of the same kind in either side of the equation…

Q: What is the molar mass of C13H21NO3 (albuterol), a drug used to treat asthma? Reminder: molar mass…

A:

Q: How many grams are in 6.51 moles of H2SO4?

A: Given, moles of H2SO4 = 6.51 moles mass of H2SO4 = ? Note:  molar mass of H2SO4 = 98.079 g/mol

Q: Part A.  Calculate the number of molecules in 2.00 moles H2S  Express your answer numerically and…

A:

Q: how many moles of carbon atoms are in 2.87×10^22 molecules of compound C5H6O2

A: Given Molecules of C5H6O2 = 2.87 × 1022

Q: Calculate the number of moles of oxygen

A: Molar mass of the molecule is the sum of the molar mass of the individual atoms present in the…

Q: If you have 3.21 g of Na2CO3, how many moles of Na2CO3 is that?

A: First we will calculate molar mass of Na2CO3

Q: Aluminum metal reacts with oxygen gas to produce aluminum oxide: 4Al + 3O2 ---- @Al2O3 How many…

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.