(a) The number of atoms in 6.95 moles of potassium.

Q: C. What is the mass (in grams) of 5.03 × 1022 molecules of CO2 molecules?

A: Number of molecules of any species is given by, => Number of molecules = moles X Avogadro's…

Q: What is the mass, in grams, of 9.84x1024 molecules of methanol (CH3OH)?

A: Given:Number of atoms = 9.84x1024 atoms.Molar mass of CH3OH = 32 g/mol.

Q: How many atoms there in 5 molecules of hydrogen peroxide, H2O2?

A: Given, 5 Molecules of H2O2  One mole of any substance contains 6.023*1023 atoms/ions/molecules.

Q: How many moles of carbon tetrachloride are in 6.58 x 1022 molecules of carbon tetrachloride?

A: 1 mole of CCl4 contains 6.023 × 1023 molecules.

Q: What is the mass grams that are in 6.70 x 1025 molecules of 1,?

A:

Q: What is the mass percent O in Cuz(PO4)2?

A: The compound given is Cu3(PO4)2. In the above compound, each molecule is having  1) 3 atoms of Cu 2)…

Q: 5. How many hydrogen atoms are in 15 g of methane?

A: The answer is explained below.  Given that, the mass of methane = 15 g.  & we know the molar…

Q: How many moles of alanine, C3H7NO2, are in 159 g of alanine?

A: Given Mass of Alanine = 159 gram Number of mole = ?

Q: How many MOLES of oxygen are present in 2.83×1022 molecules of dinitrogen monoxide ?

A: Given,  2.83×1022 molecules of dinitrogen monoxide.

Q: How many grams of CH3CO2C5H11 must be weighed out to provide 3.22 x 1023 atoms of H? When you input…

A: Mole in terms of particles : 1 mol = 6.022 x1023 particles  where particles =…

Q: How many moles of carbon tetrabromide are present in 4.07 x 1022 molecules of this compound?

A:

Q: How many moles of chlorine atoms are there in a sample that consists of 1.89e+22 molecules of iodine…

A: There are 6.022×1023 molecules in one mole of iodine trichloride ICl3.

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: Determined the mass percentage of hydrogen in CH4 and C4H10?

A: Molar mass is defined as average mass of atoms present in the chemical formula. It is the sum of the…

Q: how many hydrogen atoms are there in 80.0 g of phosphoric acid?

A:

Q: How many grams of glucose (C6H12O6) are in 3.55 moles of glucose?

A: Given  Number of mole of glucose = 3.55 mole  Mass = ?

Q: What mass of ethanol (C2H6O) would contain 7.0 x 1026 atoms of carbon?

A:

Q: Determine the molar mass of Al2(SO.),-5H,0.

A: To determine the molar mass of

Q: what is the percentage composition of oxygen of potassium sulfate,K2S04?

A: Since, Molar mass of K2SO4= 174.259 g mol-1 Molar mass of O = 16 g mol-1 %O = ?

Q: how many molecules are there in 1×10^-4 mole of benzene C6H6?

A: Given that, Number of moles of benzene = 1.0×10-4 moles

Q: How many GRAMS of fluorine are present in 1.03×1022 molecules of dinitrogen tetrafluoride ?

A: 1) Mole in terms of entities: 1 mole = 6.022 x 1023 entities Where  Entities =…

Q: What is the mass of 8.37x1020 molecules of lithium sulfate, Li2SO4?

A: As per Avogadro law: 1 mol of any compound = 6.023 × 1023 molecules of the compound. Molar mass of…

Q: What is the mass, in grams, of Vitamin C (C6H8O6) that contains 1.076 grams of carbon?

A: Molar mass of C = 12.01 g/mol mass(C)= 1.076 g number of mol of C, n = mass of C/molar mass of C…

Q: 3. What is the mass in grams of 0.0435 moles of alcohol (C,H;OH)?

A: Molar mass = 2 • ( molar atomic mass C ) + 6 • ( molar atomic mass of H ) + ( molar atomic mass of O…

Q: The mass percent of C in a certain organic compound (C3H8X) is 29.28%. What is the identity of X?

A:

Q: he molar mass of the hydrate, Co(NO,), · 6H,0.

A:

Q: What is the mass in grams of 1.44 × 10²⁵ molecules of I₂?

A: The number of moles of a substance is determined as the number of molecules, atoms or ions upon the…

Q: What is the mass percentage of O in C3H,O,?

A: The mass percentage of an element is a one of the way to express the amount of element in the…

Q: If 5.467g of KAi(OH)4 was the limiting reagent in the synthesis of Alum, what would the mass of Alum…

A: Given, Mass of KAl(OH)4 = 5.467 g Yield of the reaction =98% = 0.98 To find: Mass of alum

Q: 4. a) How many particles ( b) What is the mass in grams of that salt? )are there in 1.25 moles of…

A: No. of particle = mol * NA     where NA is Avogadro number.

Q: 7. What is the mass in grams, of Vitamin C (C6H8O6) that contains 1.076 grams of carbon?

A: Given mass of Carbon = 1.076 g Molar mass of Carbon = 12.01 g/mol Molar mass of C6H8O6 = 176.12…

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: How many GRAMS of fluorine are present in 5.01×1022 molecules of sulfur tetrafluoride ?

A:

Q: What is the % by mass of Nitrogen (N) in (NH4)3PO3

A: Mass percentage tells about the mass percentage  of that element present in the given Compound. Or…

Q: In the complete combustion of tetradecane, C14H30, how many moles of water are produced?

A: A combustion reaction is a reaction in which a compound reacts with oxygen gas to produce carbon…

Q: The compound XCl4 contains 75.0% Cl by mass. What is theelement X?

A: The empirical formula of the compound is XCl4 and the mass percentage of chlorine is given as 75 % .…

Q: 3. How many atoms are in 1.45 g of Ag?

A:

Q: What is the percent by mass of nitrogen in NH3?

A: %mass = (mass of solute ÷  mass of solution ) × 100

Q: What is the molar mass of nitroglycerin, C3HS(NO3)3?

A: Molar mass of a compound is equal to the sum of atomic masses of all the elements in that compound.…

Q: What is the molar mass of nitroglycerin, C3H5(NO3)3?

A:

Q: What is the molar mass of ammonium phosphate, whose chemical formula is (NH4)3PO4?

A: Molar mass of any compound = atomic mass of all the atoms present in the chemical formula  Since in…

Q: 4. How many molecules are in 2.5 mole H,O?

A: Any  1 mol of substance  always contains avogadro number of molecules.

Q: How many grams of glucose (C6H12O6) are in 4.67 moles of glucose?

A: We know that number of moles of a molecules is given by : Number of moles =       given mass / molar…

Q: Calculate the mass in grams of 1.91*1024 molecules of formaldehyde. The chemical formula for…

A: Mass = number of mols x molar mass Number of molecules in 1 mole = 6.0224 x 1023  Molar mass of CH2O…

Q: Calculate the mass (in kilograms) of chlorine in 25 kg of chlorofluorocarbon (CFC). CF3Cl

A: The given data contains, chlorine = 25 kg.

Q: If the molar mass of the hydrocarbon C3H8 was determined to be 440.97 g/mol, what is the molecular…

A:

Q: Calculate the mass percentage of chlorine in trichlorobenzene, C6H3Cl3.

A:

Q: What is the mass in grams of 1.59 moles of aluminum oxide Al,O3 ?

A: Q - What is the mass in grams of 1.59 moles of aluminum oxide Al2O3

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.