How many atoms of hydrogen are contained in each of the following? a) 23 molecules CH3CH2COOH b) 7.4 mol H3PO4 C) 57g C6H5ONH2

Q: 24) Which of the following compounds contains the largest number of atoms? A) 1.00 mole of H,PO, C)…

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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 molecules are in 28.0 g of isopropyl alcohol C3H8O?

A: The formula of isopropyl alcohol is C3H8O Hence molar mass of C3H8O = Atomic mass of C X 3 + Atomic…

Q: How many molecules are in 28.0 g of isopropyl alcohol C3H8O?

A: The formula of  isopropyl alcohol is C3H8O Hence molar mass of C3H8O is  Molar mass = Atomic mass of…

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

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Q: How many Ne atoms are contained in 32.0 g of the element? 1.07 x 10-21 atoms 3.88 x 1026 atoms O…

A: The question is based on mole concept.we need to calculate number of atoms present in given quantity…

Q: Number of atoms of C in 17 moles of C4H10 are: O 24.09x10^23 7.06x10^23 O 409.50x10^23 102.37x10^23

A: Number of atoms of carbon  = carbon atoms × moles × NA

Q: Calculate the number of moles of carbon atoms present in each of the following samples a) 1.294 g…

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Q: Complete the table of compounds that contain only car- bon and hydrogen. % c % H Formula Molar Mass…

A: Alkanes are saturated compounds containing only carbon and hydrogen atoms. These are also called as…

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

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Q: Consider the mixture of propane, c3h8 and o2 a. What is the percent, by mass, of carbon in propane?

A: The molecular formula of propane is = C3H8 The mass percent of the carbon in propane is =?

Q: Calculate the number of moles of carbon present in the following sample. 1.271 g of ethanol, C2H5OH

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Q: How many moles of Al2(CO3)3 contain 2.63x1025 atoms of oxygen (O)? a) 393 moles b) 4.85 x 1046…

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

Q: How many atoms of hydrogen are contained in each of the following? 15 molecules of C6H5CH3 2.27…

A: using the mole concept moles= given mass/ molar mass moles= no of atom/molecule/6.023×1023 using…

Q: Complete the table of compounds that contain only carbon and hydrogen. % Η (by % С (by mass) Molar…

A: Using the relation,% by mass=mass of the elementmass of the compound×100

Q: How many atoms of carbon and how many grams of carbon are there in 5 molmol of each of the following…

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Q: Which of the following can be considered an empirical formula? Explain how you know. CH4 C2H8 C2H6…

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Q: Convert 40.0g K3PO4  to molecules of K3PO4 . choose the correct multiple choice underneath. 40.0…

A: Given mass of K3PO4  = 40 g

Q: A 10.68 g sample of compound that contains only carbon, hydrogen, and oxygen was analyzed through…

A: Given mass of sample is 10.68 g. Upon combustion it gives 16.01 g CO2 and 4.37 g H2O

Q: How many atoms of H are present in 37.6 g of NH3?

A: Given, Mass of NH3 = 37.6 g Molar mass of NH3 = 17.031 g/mol

Q: The following diagram represents the collection of CO2 andH2O molecules formed by complete…

A: Combustion of hydrocarbon means heating a hydrocarbon in the presence of oxygen to give CO2 and H2O…

Q: Which substances have the same empirical formula? Explain how you know. Sample Formula 1 CH3OH CH2O…

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

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: How many atoms of Hydrogen are contained in each of the following? 25 molecules C6H5CH3 3.5 mol…

A: Given: 25 molecules of C6H5CH3 3.5 moles of H2CO3 And 36 g of CH3CH2OH

Q: How many total atoms are in 0.860 g0.860 g of P2O5?

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Q: How many atoms of Hydrogen are contained in 36 g CH3CH2OH?

A: Moles of ethanol is calculated as follows,

Q: How many total atoms are in 0.750 g0.750 g of P2O5?

A: Given: Mass of P2O5 = 0.750 g Molar mass of P2O5 = 283.886 g/mol

Q: How many total atoms are in 0.940 g0.940 g of P2O5

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: How many moles of Ag2SO4 are in a sample that contains 1.06 x 1023  molecules? How many grams are in…

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Q: What will be the molecular formula of the compound which has an empirical formula CzHs and molar…

A: Since, we have to determine the molecular formula of butane starting from its empirical formula and…

Q: How many moles of pentane, C5H12, are contained in a 27-g sample?

A: ⊙No. of moles = massmolar mass⊙Molar mass of pentane(C5H12)=5×atomic mass    of carbon +12×atomic…

Q: How many atoms in 0.11  g CH4

A: Number of particles in a sample can be calculated by multiplying the number of moles by Avogadro's…

Q: 1. A compound R2O3 is 32.0% oxygen. What is the molar mass of R2O3 ? What is the element represented…

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Q: any molecules are in 4.15 mol of SiH? ol SiH4 = any moles are in 7.83 x 1024 molecules of NH3? 1024…

A: Mole is equal to number of molecules divide by avagadro number

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.