How many moles of propylene (C3H6) are in 25.0 g of the substance?

Q: How many moles of NO3- are in 13.0 g of Ca(NO3)2?

A: 1 moles of Ca(NO3)2 contains 2 moles of Nitrate ions. Nitrate ions (NO3-) present in the sample =…

Q: Heart disease is linked to high blood cholesterollevels. What is the percent composition of…

A: Percentage composition of each element defines the amount of that particular element present with…

Q: Calcium carbonate is the active ingredient of some antacids. It is also the compound in the mineral…

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Q: How many moles are in 72.0 grams of RbF?

A: Concept introduction: The mole is defined as a sample of a natural element with a mass equal to the…

Q: A) How many moles of C17H25O6 molecules are in 203 mg of this compound? B) What is the mass of…

A: Mass of C17H25O6 = 0.203 g Molar mass of C17H25O6 = 17x12 + 25x1 + 16x6 = 204 + 25 + 96 = 325 g/mol

Q: How many moles of C4H8O2are in 6.00 g of butyric acid?

A: Given  Mass of C4H8O2 = 6 gram  Number of mole = ?

Q: The number of moles in 37.80 g of C2H6O (molar mass = 46.1 g/mol) is?

A: Given information,       Mass of C2H6O is 37.80 g.     Molar mass of C2H6O is 46.1 g/mol.

Q: An aspirin tablet contains 325.0 mg of aspirin, which has the molecular formula, C9H8O4. How many…

A: Given:Mass of aspirin = 325 mg = 0.325 g.

Q: how many molecules of N2O4 are in 76.3 g of N2O4? the molar mass of N2O4 is 92.02 g/mol

A: Mass of N2O4 is 76.3 g Molar mass of N2O4 = 92.02 g mol-1 Number of moles of N2O4 = mass of…

Q: Write all possible mole ratios between each element in the compound C4H10O2.

A: In one mole of the compound C4H10O2, there are 4 moles of C, 10 moles of H and 2 moles of O.

Q: How many molecules of CH40 are in 22.0 g of CH40?

A: Answer: Each mole of a substance contains the number of particles equals to Avogadro number.   Given…

Q: A sample of propanol, C3H3O, contains 0.383 mol of the compound. What is the mass of the sample, in…

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Q: How many hydrogen atoms are present in 75.0 of g H2O?

A: Mass of water, H2O = 18.016 g/mol Mass of water = 75 g Moles of water, H2O = Mass Molar mass=75…

Q: How many grams of nitrogen are in a .10g sample C8H10N4O2?

A: Step : 1            The mass of caffeine ( C8H10N4O2 ) is not clear, so we consider as two cases  :…

Q: How many moles of tetracycline (C₂₂H₂₄N₂O₈) are in 92.1 grams?

A: Before going to find out moles of tetracycline, We first find out molecular weight of C22H24N2O8 ,…

Q: Combustion of an unknown compound containing only carbon and hydrogen produces 54.9 g of CO₂ and…

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

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

A: Given;

Q: How many molecules of H2O are contained in 360 g of H2O? How many atoms of H?

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Q: How many moles are equal to 4.5 x 1023 molecules of carbon monoxide? (Round to two decimal places).

A: No of CO molecules = 4.5 × 1023 molecules No fo moles = to be determined

Q: How many moles are in a sample of Saccharin with a mass of 50.51 grams? Saccharin is an artificial…

A: We know, number of moles = Given Mass / Molecular Mass

Q: A chemical engineer has determined by measurements that there are 3.2 moles of hydrogen in a sample…

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Q: What is the mass in grams of 46.50 moles of NaBr?

A: The answer to the following quetion is_- Given moles of NaBr= 46.50 moles molar mass of NaBr is =…

Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: How many moles of atoms are contained in 15.5 g of Br2 ?

A:

Q: How many moles of carbon dioxide (CO2CO2) are in 34.9 g34.9 g of the compound?

A: Given:Mass of CO2 = 34.9 gMolar mas of CO2 = 44.01 g/mol.

Q: A compound is 7.7% (by mass) hydrogen and 92.7 % carbon. It has a molecular weight of 52 g/mole.…

A: Empirical formula are the formula which represent simplest ratio of an element present in a given…

Q: How many grams of S are in 515 g of SO2?

A: The atomic mass which is denoted in grams indicates the gram atomic mass. The relationship between…

Q: How many NH3 molecules comprise one mole of NH3? What is the mass in grams of one mole of NH3? What…

A: In one moles of NH3 is equal to Avagadro number of Molecules of NH3  That means,  1mol of NH3 =…

Q: How many molecules are in 24.8 moles of SO₂?

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Q: How many moles of atoms are present in 5 moles of Al(OH)3?

A: To determine the number of moles of atoms present in 5 moles of Al(OH)3 , we need to consider the…

Q: How many molecules are in 119.78 g of butane (C4H10)?

A: Mass of butane = 119.78 g  Number of molecules of butane = ? • Number of moles = mass / molar mass…

Q: How many molecules are in 40.8 moles of SO₂?

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

Q: How many moles of carbon in 70.43 grams of C6X12Y4? (Assume the molar mass of C6X12Y4 is 295.8)

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Determine the quantity of moles of propylene (C3H6) in 25.0 g of the substance

A: Given question related to calculation of no. of moles of propylene in 25.0 g of substance.

Q: 5) A certain compound has the following percent composition: 57.1% C, 4.8% H, and 38.1 % O. If the…

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Q: How many moles of CH4 are 4.5x1022 CH4 molecules? NOTE: It is not necessary to include units on your…

A: Given that:  Molecules of CH4 = 4.5×1022

Q: the molar mass of a strange new compound is 95.2 g/mol, how many moles of the compound are in 157.00…

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Q: the number of moles of chlorine in 12.5 g of carbon tetrachloride?

A: Number of moles of chlorine in 12.5g of CCl4. Here first we find moles of CCl4 in 12.5g that is 0.08…

Q: How many atoms are in 2.00 mol of H2?

A: Given : no.  of moles of H2 = 2.00 mol  To calculate : number of atoms

Q: How many moles are in 78.1 grams of RbF?

A: The objective of this question is to calculate the number of moles in a given mass of a substance.…

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

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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.