How many grams of CH4 contain the same number of molecules as 2.50 grams of O2? 1.25 g 0.0781 g 0.156 g 4.70*1022 g 4.88*10-3 g

Q: The formula for disulfur decafluoride is S2F10 . a. How many molecules are in 1.57 grams of disulfur…

A: a) Given: 1.57 g of S2F10. The no of molecules are determined as follows,

Q: How many grams are in 7.59 x 1023 molecules of Fe2O3?

A: Given 7.59 ×1023 molecules of Fe2O3 . To find grams of Fe2O3 .

Q: 19. How many grams does 3.5 x 1025 molecules of H2SO4 weigh?   Group of answer choices a)  5.7 X…

A: Using the concept of number of moles we can find mass of H2SO4.

Q: How many grams of NaCl are there in 3.4 moles of NaCl?  a)  3.4 grams b)  17.19 grams c)  198.696…

A: Given moles of NaCl = 3.4 mol  Molecular mass of NaCl = (23 + 35.44) g/mol = 58.44 g/mol

Q: a 23.0 sample of a compound contains 12.0 g of C, 3.0g of H, and 8.0g of O. Which of the following…

A: The mass of the sample is = 23.0 g The mass of C = 12.0 g The mass of H = 3.0 g The mass of O = 8.0…

Q: How many grams are in 2.34X10^23 molecules of Ba (SO4)? A. 3286.5 grams  Ba (SO4) B. 90.7 grams…

A: Given data is as follows: The number of molecules of BaSO4 = 2.34×1023 The mass of BaSO4 = ?

Q: How many MOLECULES of water are present in 9.27 grams of this compound? A 3.10 x 1023 molecules H20…

A: Given that: Mass of water = 9.27 g Molar mass of H2O = 18g/mol Moles of water = 9.27g÷18g/mol =…

Q: What is the mass (in grams) of 8.10 x 1023 molecules of C6H12O6 ? Remember to report proper number…

A: In multiplication and division we report final answer to least significant figures in available…

Q: What is the mass of 2.00 × 10 ^ 19 molecules of CCl4?

A: Given the number of molecules of CCl4 are --- 2.00×1019 molecules What is the mass of this given…

Q: How many grams of rhenium are in a 88.24-gram sample of ReCl 3? The molar mass of ReCl 3 is 292.57…

A:

Q: How many MOLECULES of water are present in 9.27 grams of this compound?   2.80 x 1032 molecules H2O…

A:

Q: What is the molar mass of ibuprofen, C13H18O2? A) 206.3 g/mol B) 289.4 g/mol C) 29.0 g/mol D)…

A: Molar mass of C = 12.01 g/mol  Molar mass of H = 1.008 g/mol  Molar mass of O = 16.00 g/mol

Q: How many grams of rhodium are in a 157.9-gram sample of RhCl 3? The molar mass of RhCl 3 is 209.26…

A: By the help of stoichiometric coefficient we can find the amount of unknown substance by the help of…

Q: How many grams of ruthenium are in a 70.49-gram sample of RuCl 3? The molar mass of RuCl 3 is 207.43…

A: Given- Molar mass of RuCl3=207.43g/mol Which means 1mole of RuCl3 has mass 207.43g/mol Ru has atomic…

Q: Co(NO3)2

A: a) First find out the moles of Co(NO3)2 :  moles = ( formula unit / Avogadro number )  Moles = (…

Q: What is the average mass (in grams) of a single carbon dioxide molecule? (a) 3.8 × 10-26 g (b) 7.31…

A: Molecules are formed when two or more atoms of the same or different atoms combine. These consist of…

Q: 9. How many molecules are there in 2.3 grams of NH4SO2? 10. How many grams are there in 3.3 x 1023…

A:

Q: How many molecules of ascorbic acid (vitamin C: C6H8O6)are in a 50 mg tablet? (need molar mass)

A: Given data contains, Mass of tablet is 50 mg. The molar mass of ascorbic acid (C6H8O6) is calculated…

Q: SO2 has 8.50 × 10^24 molecules. What is its mass in grams?

A: Molar mass of any compound can be expressed in g mol-1 and atomic mass units. Every molecule has its…

Q: 20.  The number of moles in 112 g of acetylsalicylic acid (aspirin) C9H8O4 is    A. 1.61   B.…

A:

Q: How many grams of hydrogen are in 46 g of CH4O

A: Given;

Q: How many moles of atoms are present in 154 g of HCl?   A) 4.22 mol B) 8.45 mol C) 0.0270 mol D) 2.00…

A: Given  Mass of HCl = 154 gram  Number of mole of atom = ?

Q: What is the average mass (in grams) of a single nitrogen dioxide molecule? A. 3.6 x 10-26 g B. 2.77…

A: Since mass of 1 molecule  = molar mass / Avogadro's number Molar mass of Nitrogen dioxide (NO2) = 14…

Q: How much Mg is present in 0.7462 g MgO?     60.31 g     0.5000 g     0.4500 g     0.2962 g

A: Given : Mass of MgO = 0.7462 g Molar mass of MgO = Atomic mass of Mg + Atomic mass of O = 24.3 + 16…

Q: How many MOLECULES of water are present in 9.27 grams of this compound? (A) 2.80 x 1032 molecules…

A:

Q: Calculate the mass in grams of 1.31×1024 molecules of propylamine. The chemical formula for…

A: Mole : It is the unit of measurement of the amount of substance. It's SI unit is mol. One mole of…

Q: How many grams of AlCl3 are required to make 241.4 grams of Al(OH)3? 3Mg(OH)2 + 2AlCl3     =>…

A: Given that, 3Mg(OH)2 + 2AlCl3     =>   3MgCl2   +  2Al(OH)3 also given that,  241.4 grams of…

Q: Determine the mass in grams of Li+ (6.941 g/mol) in 25.0 g of Li2SO4 (109.94 g/mol).   8.10 g…

A: Given: Mass of Li2SO4 = 25.0 g.

Q: How many grams are there in 9.40 x 1025 molecules of H2? 39.25 grams of H2 157.74 grams of H2 78.85…

A: Given data : Avogadro's number N0 = 6.022×1023 molecules Number of molecules of H2, N = 9.40 ×1025…

Q: Calculate the mass of carbon dioxide produced from 15.6 g of octane, C8C18, in the 2C8H18(g)…

A:

Q: mass in grams of  1.74 x 10^24 atoms of beryllium

A:

Q: How many moles are in 7.8 g of NaF?   A. 0.133 mol   B. 0.19 mol   C. 327.6 mol    D. 7.8 mol

A:

Q: How many grams of CaBr2 are there in 0.31 moles of CaBr2? A 24 g B 0.002 g c 7.3 g D 62 g

A: Given moles of CaBr2 = 0.31  Molar mass of CaBr2 = 199.89 g/mole Required  formula  moles =Mass/…

Q: Find the number of grams of NaF in 3.72 x 10^22 formula

A: The question is based on mole concept. have to calculate mass of sodium fluoride present.

Q: How many grams of Mo2(SO3)3 are in 1.34x1023 molecules of Mo2(SO3)3?    a. 4.17x104 grams b. 432.13…

A:

Q: 9. How many molecules are there in 2.3 grams of NH4SO2? 10. How many grams are there in 3.3 x 1023…

A: 9.)

Q: How many grams of NO2 is required to produce 61.5 grams of NO? 1. 13.4 g O 2. 283 g 3. 120 g 3NO2(g)…

A:

Q: How many MOLECULES of water are present in 9.27 grams of this compound?   3.10 x 1023 molecules H2O…

A: Note : 1 mole compound contains 6.023 x1023 molecules. 1 mole = 18 grams water. 18 gr water contains…

Q: The formula for boron tribromide is BBr3. How many molecules are in 7.83 grams of boron tribromide?…

A: Given Compound BBr3=250.52g/mole Using mole concept Mole= given mass (g)/Molar mass of BBr3 Moles…

Q: How many grams of AuCl3 contains 5.00 x 1023 atoms of gold(III) chloride (MW = 303 g/mol)? Group of…

A: Given that:     Number of atoms of gold (III) chloride = 5 × 10²³ atoms                Molar mass of…

Q: How many atoms are in 15.6 grams of silicon? group of answers 0.555 2.64 x 10^26 3.34 x 10^23 438…

A:

Q: What is the percent of carbon in the pesticide DDT (C14H9Cl5) ? The molar mass of C14H9Cl5 is 354.5…

A: The given data: The chemical formula for DDT = C14H9Cl5 The molar mass of DDT = 354.5 g/mol To…

Q: How many moles are equal to 12.65 grams of Al2(SO4)3

A: Number of moles = mass/molar mass Molar mass of Al2(SO4)3 = 342.14g/mol

Q: How many atoms of hydrogen are present in 7.63 g of ammonia? Group of answer choices a.   1.38 x…

A: We know 1mole contains 6.022 x 1023. We also know 1mol of ammonia has three moles of hydrogen atom…

Q: How many grams are in 3.60× 10^24 molecule of CUCI2

A: Given :- number if molecules of CuCl2 = 3.60 x 1024 molecules  To calculate :- mass (in g)

Q: A bottle of Ibuprofen (C 13 H 18 O 2 ) contains 1.204 * 10 ^ 24 molecules. How many grams of…

A: Interpretation -  To determine the grams of ibuprofen are contained in the bottle when a bottle of…

Q: Determine the number of molecules in 49.9 grams of CH₄.

A:

Q: How many grams of Fe(CO3) are in 4.22 moles of Fe(CO3)? A. 0.036 grams Fe(CO3) B. 488.7 grams F e…

A:

Q: What is the mass of 2.00 mol of chlorotrifluoromethane?     52.1 g     209 g     104 g…

A: Given,  Moles of chlorotrifluoromethane = 2.00 mol.  The mass of chlorotrifluoromethane is:

Q: What mass of (NH2)2CO contains 8.9x1019 molecules of (NH2)2CO? 2.)How many atoms of O are 10.0 g of…

A: No o moles is defined as given mass divided by molecular mass.

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.