Phosphorus has the molecular formula P4, and sulfur has the molecular formula S8. How many grams of phosphorus contain the same number of molecules as 4.23 g of sulfur?          (A) 0.490 g          (B) 2.04 g          (C) 4.08 g          (D) 4.23 g

Q: What is the formula weight of trinitrotoluene, known as TNT, with a molecular formula…

A: Formula weight of a compound represents its total weight. Formula weight of a particular compound…

Q: , A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A: The empirical formula of a chemical compound is the simplest positive integer ratio of atoms present…

Q: find the number of particles of 35.0 grams of each of the following: Ag, CF4,C6H12O6?

A:

Q: How many Atoms are there in C6H12O6 ?

A: Atoms are the basic building blocks of all matter. They can combine to form molecules, whose…

Q: 2. If you have 1.00 grams of N22CO3, how many moles of Na2CO3 is that?

A: Given, mass of Na2 CO3 = 1.0 g Moles of Na2CO3  = ?  Firstly, find Molecular mass of Na2CO3

Q: What if you discovered Avogadro’s number was not 6.02 3 1023 but 3.01 3 1023? Would this affect the…

A:

Q: The composition of sorbic acid is 64.3% C, 7.2% H and 28.5% O. Since its molecular mass is 112 alb,…

A: Given : Mass % : C=64.3% H=7.2% O= 28.5%

Q: Ibuprofen, a potent headache remedy, has a molar mass of about 206 grams and has been determined to…

A: Empirical formula represents the simplest whole number ratio of atoms of elements present in the…

Q: 5) Given the molecular formula C6H1004, what is this compound's empirical formula? A) CH2O B) C2H50…

A: Since in the empirical formula, the ratio of atoms are the smallest whole numbers. And since in the…

Q: 2. In a chemical atomic mass determination, the tin content of 3.7692 g of SnCl4 was found to be…

A: In SnCl4 one Sn atom combine with 4 chlorine atom. Given mass of SnCl4 is 3.7692 g and mass of Sn is…

Q: 6. Explain what the coefficient of 4 means in the following chemical formula: 4K,SO,

A: Given that, 4K2SO4

Q: What is the mass % of H in C9H10N2?

A: Mass percentage is a kind of expressing the concentration of a solution. It gives an information…

Q: The molar mass of nicotine C10H14NX is 162 g/mol. What is the value of x?

A:

Q: A compound with the rather imposing name 2,2'-azo-bis-isobutyrylnitrile is used to initiate the…

A: Given : molecular formula of compound is = C8H12N4. To find : type of atom and number of atoms and…

Q: When iridium-192 is used to treat cancer, a small cylindrical piece of 192Ir, a 0.6 mm in diameter…

A: Given,

Q: A metal M forms a compound with the formula MCl4. If the compound is 66.14% chlorine by weight, what…

A: The molecular formula of metal chloride is = MCl4 The mass percentage of chlorine is = 66.14 %

Q: Which of the following has the empirical formula CH2 ? A) C6H6 B) C2H6 C) C2H4O D) C6H12 E)…

A: Empirical formula of any compound is the formula of the compound which has number of atoms of each…

Q: How many atoms of hydrogen are found in 3.92 mol of hexane, C6H14?

A:

Q: How many grams does 3.5 × 10²⁵ molecules of H2SO4 weigh?

A:

Q: 3.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: The empirical formula is the chemical formula of any compound that represents the proportions of…

Q: How many grams of K2C2O4, potassium oxalate, would containe 182 grams of pure potassium?

A: The molar mass of potassium oxalate can be calculated as:

Q: 4) An evil scientist is attempting to split up uranium hexafluoride, UF6, into its componer…

A: Given: Compound= UF6Mass of uranium obtained = 70.5 gMass of fluorine obtained = 36.3 g The…

Q: 11. How many oxygen atoms are there in one formula unit of Ca2*?

A: 1. Formula unit is used to indicate lowest reduced ratio of ions in the compound  2. Molarity :…

Q: Calculate the molecular mass of the following substances: (a) Ibuprofen, C13H18O2 (a drug used as…

A: Introduction: Molar mass is the mass of 1 mole of a substance in a gram. It is also called molecular…

Q: The weed killer “Roundup” has a chemical formula of ( C3H8NO5P) What is its molecular mass?

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

Q: A sample of 0.593 mol of a metal M reacts completely with excess fluorine to form 46.2 g of MF2.…

A: Given : Moles of metal M = 0.593moles Mass of MF2 = 46.2g

Q: Give the number of atoms of the specified element in aformula unit of each of the following…

A:

Q: Oxygen 15.9994

A:

Q: What is the % mass of oxygen in citric acid, C6H807?

A:

Q: The chemical formula of the antiviral drug against COVID-19 molnupiravir is C13H19N3O7. How many…

A: The chemical formula of the antiviral drug against COVID-19 molnupiravir is C13H19N3O7 Molar mass:…

Q: A certain metal oxide has the formula MO, where M denotes the metal. A 39.46-g sample of the…

A: Given the mass of sample = 39.46g Mass of metal left after heating = 31.70g The atomic mass of metal…

Q: 27. When iron(III) oxide reacts with hydrochloric acid, iron(III) chloride and water are formed.…

A: Balanced chemical equation:  Fe2O3  + 6 HCl ---> 2 FeCl3 + 3 H2O  Mass of Fe2O3 = 10.0 g Mass of…

Q: How many atoms of sulfur are in 441 g of Na,S2O3 ? Atomic weights: Na=22.99, S=32.07, O=15.99. Input…

A:

Q: Gallium consists of 60. % 69Ga and 40. % 71Ga. Arsenic has only one naturally occurring isotope.…

A: Gallium has two isotopes 69Ga and 71Ga  with ratio of abundant 60 % and 40 % . Therefore intensity…

Q: The nonprescription pain relievers Advil and Nuprin contain ibuprofen 1C13H18O22, whose molecular…

A: Given, Molar Mass of Ibuprofen(C13H18O22) = 206.3 g/mol                                Number of…

Q: How many atoms of hydrogen are found in 7.12 mol of pentane, C5H12?

A:

Q: An aluminum-containing compound has the formula Mg, Al,0, and is 44.98% oxygen by mass. What is the…

A: Given: mass percent of O = 44.98 % Formula of compound: MgxAlyO4 molar mass of O = 16 g/mol molar…

Q: How many atoms of sulfur are in 380 g of Na,S,O, ? Atomic weights: Na=22.99, S=32.07, O=15.99. Input…

A:

Q: 3. What is the mass of 3.1 moles of zinc, Zn?

A: Mass = number of moles × molar mass

Q: g) How many grams of K2C2O4, potassium oxalate, would contain 182 grams of pure potassium?

A: One mole of K2C2O4 has two moles of potassium.   The molar mass of K2C2O4 is 166.22 g/mol   And…

Q: Calculate the mass of antimony(III) lodide, Sblg, that can be produced by the reaction of 143 g of…

A:

Q: 5) What is the percent composition of Carbon, Hydrogen and Oxygen in CaH&O11 ?

A: Percentage composition of an element tell about the percentage of the element present in the…

Q: The British chemist Joseph Priestley prepared oxygen in 1774 by heating mercury(II) oxide, HgO.…

A:

Q: Phosphorus burns in air to produce a phosphorus oxide (P4019) in the following reaction. If 0.489…

A:

Q: 6.61 x1019 molecules of hydrogen gas,(H2) are equal to how many grams of hydrogen gas?

A: SOLUTION 6.022×1023 molecules of H2 gas is equal to 1 mol of H2 gas. 1 molecule of H2 gas is…

Q: What is the molar mass of C6H1206? Enter your answer rounded to four sig figs, without units.

A: Introduction: Molar mass: The molar mass of a compound is the mass of a sample in per unit mole. It…

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.