How many molecules of H2O are in 12.9 grams of H2O?

Q: How many moles and molecules are in 631.9 g Al2(SO4)3?

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Q: The analysis of a compound gives the following percent composition by mass: C: 54.34 percent; H:…

A: Given: Percent mass of Carbon = 54.34 % Percent mass of Hydrogen = 9.447 % Percent mass of Sulfur =…

Q: 2 Mg(s) + 3 N2 (g) --> 2 MgN3 (s) How many moles of N2 will be used to produce 115 grams of MgN3?

A: The given reaction is,             2 Mg(s) + 3 N2 (g) --> 2 MgN3 (s) We have, mass of MgN3 = 115…

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

Q: How many items are contained in one mole of (a) baseballs; (b) bicycles; (c) Cheerios; (d) CH 4…

A: Hi, since you have posted questions with multiple subparts we will answer the first three subparts…

Q: How many moles are in 5.94 x 10^20 H2O2 molecules?

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Q: How many H atoms are present in 8.0 g of CH4? O 3.0 x 1023 O 8.3 x 10-25 O 3.7 x 1023 O 1.2 x 1024 O…

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Q: How many moles of N2 can be formed by the decomposition of 2.12 mol of ammonia, NH3?

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Q: What is the mass of O in a sample of 70.09g of CO2?

A: Two or more elements are combined to form a chemical compound. Here C and O combine to form CO2…

Q: The chemical formula for the antidepressant fluoxetine is C₁₇H₁₈F₃NO. What is the mass in grams of…

A: Given data: The molecular formula of fluoxetine is C17H18F3NO. The given moles of fluoxetine is…

Q: How many molecules are in 4.83×1020 H2O2?   I don't quite understand how to do these calculations. I…

A: Note: Hey there! Thank you for posting the question. Since the unit is not given, we have taken…

Q: If 4.7 kg of CO₂ are produced during a combustion reaction, how many molecules of CO₂ would be…

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Q: How many molecules are present in 1.36 g of AgNO3?

A: Given : Mass of AgNO3 = 1.36 g

Q: How many moles of KClO3 are needed to make 3.50 moles of KCl? rounded to the nearest hundredth

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Q: If 4.1 kg of CO₂ are produced during a combustion reaction, how many molecules of CO₂ would be…

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Q: Determine the charge (in C) involved in plating out 1 mole of Fe from a solution of Fe203. O 385940…

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Q: How many grams of N2 are needed to make 444 g of NBr3 ?  N2   +   3 Br2   →   2 NBr3   +   44.0 kJ…

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Q: How many moles of Ag are in 87.4 grams of Ag₂O?

A: molar masss of Ag2O = 231.7 g/mol Number of moles = 87.4 g / 231.7 g/mol = 0.372 Moles

Q: how many moles of carbon are in 1.0 g of CO2

A: Given;

Q: y moles of CO2 are in 15.59 g CO2?The molar mass of CO2 is 44g/mol

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Q: How many grams of H2O2 are in 2.0 mol H2O2

A: The formula for molar mass is given below.On rearranging equation (1),The mass can be calculated as…

Q: Calculate the % composition by mass of each element in phosphorus oxychloride POCl3. Keep at least…

A: Mass composition explanation the amount  of each elements present in whole sample.

Q: If 6.5 kg of CO₂ are produced during a combustion reaction, how many molecules of CO₂ would be…

A: Given, Amount of CO2 =6.5 kg =6500 gwe are asked to calculate the number of molecules of CO2 in the…

Q: How many grams are there in 6.85 moles of sodium hydroxide, NaOH?

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Q: How many number of moles are present in 100 g of CaCO3?

A: The number of moles of a compound can be calculated by the ratio between mass of the compound to its…

Q: How many moles of Ag are in 63.5 grams of Ag₂O?

A: The objective of this question is to calculate the number of moles of Silver (Ag) present in 63.5…

Q: How many grams of C are in 34.50 mg of sodium carbonate (Na2CO3)?

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Q: How many molecules of CO2 are present in 0.6642 moles of CO2?

A: Generally, 1 mole has 6.022 x 1023 molecules with it.

Q: How many moles are in 34.0 g of Na2SO4?

A: The given grams of Na2SO4is converted into moles by using following mass to moles conversion…

Q: How many moles in 100.0 g lead (IV) nitrate?

A: Lead (IV) nitrate is Pb(NO3) 4 Molar mass = ( atomic mass of Pb) + (4(atomic mass of N) + 3(atomic…

Q: The chemical formula for t-butanol is: (CH3),COH Calculate the molar mass of t-butanol. Round your…

A: The atomic mass of carbon = 12.011 g/mol The atomic mass of hydrogen = 1.0078 g/mol The atomic mass…

Q: How many grams of H2 are needed to produce exactly 4.14 moles of NH3?

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Q: how many molecules are present in 0.340g of lead (IV) phosphate?

A: The number of molecules in 0.340g of lead (IV) phosphate are to be calculated. The mass of compound…

Q: If there are 5.00 g of CaCO3 in a flask, how many moles of CaCO3 are there?

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Q: How many moles of molecules are there in (7.70x10^2) grams of H2O?

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Q: What is the mass of 1.36 x 1022 molecules of HCI? O 36.5 g 1610 g

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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.