Which one of the following samples contains the largest number of molecules?     3 moles of H2O   3 moles of HF   55 g of H2O   62 g of H2O   62 g of HF

Q: According to the following reaction, how many moles of aluminum oxide will be formed upon the…

A: The balanced equation is Fe2O3 (s) + 2Al (s) → Al2O3 (s) + 2Fe (s) As aluminum is in excess, it…

Q: Which sample contains the greatest number of moles of ClCl? Which sample contains the greatest…

A: Option. A is correct  Mole of Cl= total mole of Cl×total atom if Cl in compound

Q: How many moles of HCl are needed to react with 0.970 moles of Al, according to the following…

A: Given balanced equation is 2AI + 6HCI → 2AICI3 + 3H2 Moles of Al reacted = 0.970 mol Moles of HCl…

Q: How many moles of NACl2 are needed if we want to make 38.74 g of PBCl2 bythe reaction 2Nacl+…

A:

Q: How many hydrogen atoms are present in 942.6 g of sucrose (C12H22O11)? (Molar mass of carbon =…

A: We have to calculate the number of H atoms in given mass of sucrose.

Q: how many liters of oxygen, O2 are produced from the decomposition of 402.6 g of potassium chlorate…

A:

Q: 1 Zn + 2 Mn02 + 1 H20 → 1Zn(0H)2 + 1 Mn2 How many moles of MnO2 are needed to produce 4.58 moles of…

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Q: How many molecules of N204 are in 76.3 g N2O4? The molar mass of N2O4 is 92.02 g/mol. O 7.26 1023…

A:

Q: How many grams of nitrogen (N2) are needed to produce 19.1 moles of ammonia (NH3)? N2(g) + 3H2(g)…

A: First, with the help of the stoichiometry coefficient, we calculate the number of moles of N2.…

Q: Calculate the number of moles and atoms/molecules from the following: a). 67.83 grams of H2O moles…

A: Given: Mass of H2O = 67.83 g Mass of PCl3 = 125.0 g. We have to find the moles and number of…

Q: Which of the following represents the least number of molecules? (a) 20.0 g of H2O (18.02 g/mol) (b)…

A: The number of molecules present in each compound is calculated as,

Q: A mystery compound has a molar mass of 28.1 g/mol. How many moles is 98.4 g? Do not put any units in…

A:

Q: How many moles of magnesium oxide are produced by the reaction of 3.82 g of magnesium nitride with…

A: Mass of Mg3N2 = 3.82g Mass of H2O = 7.73g Molar Mass of Mg3N2 = 100.9 g/mol Molar Mass of H2O = 18…

Q: How many hydrogen atoms are present in 3.2 g of NH3?     a)  0.19 atoms   b)  0.56 atoms   c)…

A: Given that:  Mass of NH3 = 3.2 g  We know molar mass of NH3 = 17/gmol Moles = given mass/molar mass

Q: 2 NH3   +  3 CuO   g  3 Cu   +   N2   +   3 H2O In the above equation how many moles of  N2 can be…

A: In the question it is asked to calculate how many no of moles of N2 can be made when 10 moles of CuO…

Q: 3 Cu   +   8HNO3   g 3 Cu(NO3)2    +  2 NO   +  4  H2O In the above equation how many moles of NO…

A: number of moles of NO can be made when 40 moles of HNO3 are consumed is given below

Q: How many H atoms are present in 8.3 g of H 2 ? O a. 2.5 x 1024 atoms O b.6.02 x 1023 atoms O c. 10.0…

A: Given Mass = 8.3 g

Q: how many moles of nitrogen gas would be produced if 8.83 moles of copper(II) oxide were reacted with…

A: Given 2 NH3(g)+ 3 CuO(s)> 3 Cu(s) +N2(g)+ 3 H2O(g)

Q: 6 NaOH + 2AL --> Na3 ALO3+3H2 how many miligrams of NaOH are required to produce 3.00 moles of…

A: Answer: Mass of NaOH required is 2.4 ×105 mg.

Q: Calculate each of the following quantities: (a) Mass (g) of 0.68 mol of KMnO4 (b) Amount (mol) of O…

A: (a) Given data contains, Moles of KMnO4 is 0.68 mol. The molar mass of KMnO4 is 158.034 g/mol.

Q: How many grams of KClO3 are needed to produce 2.56 grams of O2? 2KClO3 (s)=2KCl (s)+3O2 (g)

A: Amount of given O2 (molar mass = 32 g/mol), n is calculated as follows:

Q: How many moles are present in each of the following samples? a.) 55.0 g of titanium, Ti  b.) 16.9…

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Q: How many moles of atoms are contained in each of the following? 5.41 x 1024 H2O molecules

A:

Q: Hydrogen peroxide H2O2 is commonly used to clean bacteria in scrapes and cuts. It can be used as a…

A: 1 mol of a substance has   6.022×1023 (NA)   atoms/ molecules/ formula units of the substance.Number…

Q: How many moles of NH₃ can be produced from 2.02 moles of nitrogen in the following reaction:   N₂…

A: Balanced reaction is the reaction in which the number of atoms of reactants and products are equal.

Q: How many grams of Br2 are produced from 5.0 moles of KBr ? 2KBr + Cl2 → 2KCI + Br2

A: From the balanced equation we can calculate the mass of the product .

Q: 2 C4H10 +13 O2 -------------> 8 CO2 + 10H2O How many moles of water (H2O) are produced if 10.0…

A: Butane reacts with oxygen to form carbon dioxide and water. The equation for the balanced chemical…

Q: Which of the following contains the least number of moles of Ag? a.30.0 mL 0.55 M AgNO3 b.100 mL…

A: To find: the option with the least number of moles of Ag.

Q: How many moles of O₂ would be required to generate 13.0 mol of NO₂ in the reaction below assuming…

A:

Q: How many grams of Al2O3 can be produced from 20.3 g Al?  4Al(s) +3O2 (g) arrow 2Al2O3(s)   blank g…

A: You need to find the mole of Al from the given mass and then calculate the respective mole of…

Q: 5.) Ethylene glycol is a coolant widely used in automobiles. If its molecular formula is C2H6O2, how…

A: Number of moles is defined as the amount of the substance divided by the molecular weight of the…

Q: How many moles are present in 0.098 grams of HCl?

A: Moles is given by  Moles = mass / molar mass  And molar mass = sum of Atomic masses of all atoms in…

Q: Given molar mass find the mass in grams in each of the following substance 3.990x 1025 molecules of…

A: Given molar mass find the mass in grams  of the following substance 3.990x 1025 molecules of CH4…

Q: Calculate the following: (a) mass in 1.73 mol of CaH 2 (b) moles of mg (NO3) 2 in 3.25 g of…

A:

Q: e you have two samples that are equal in weight, 19.3g Ag and 19.3 g Al2O3 . Calculate the number of…

A: A Moles is defined as the mass of the substance which consists of the equal quantity of basic units.…

Q: Which of the following represents the least number of molecules?(a) 20.0 g of H2O (18.02 g/mol)(b)…

A:

Q: How many moles of sulfate ions are contained in 0.420 moles of aluminum sulfate?   A. 0.140 moles…

A: Only 1st question is answered according to the policy

Q: How many moles of H₂O can be formed from 3.89 × 10²³ molecules of NH₃ from the following equation?…

A: According to Avogadro one mole of any substance contains the Avogadro constant 6.022×1023 of…

Q: How many atoms of nitrogen are in 56.3 g N2O4? The molar mass of N2O4 is 92.0 g/mol.     7.37 ×…

A: Mass of N2O4 = 56.3 g Molar mass of N2O4  = 92.0 g/mol  Atoms of N2O4 = ?

Q: How many moles of O2 would be required to generate 13.0 mol of NO2 in the reaction below assuming…

A: The balanced chemical equation,  2NO(g) + O2(g)—> 2NO2(g) Given, %yield = 77.1%   According to…

Q: number of N atoms in 10.0 moles of NH 3 (subscript)

A: Given mole=10 Total  atoms = atomicity×mole×6×1023 Atomicity is total atoms in 1molecule of compound…

Q: How many grams of KBr, 119.0 g/mol, are required to prepare 0.986 moles of Br2 according to the…

A: KBrO3   +   5 KBr   +   6 HNO3 →   6 KNO3  +  3 Br2  + 3 H2O                  595.0 g    Molar mass…

Q: How many molecules of N204 are in 76.3 g N204? The molar mass of N204 is 92.02 g/mol. Show and…

A: Given data, Mass of N2O4 = 76.3 g  Molar mass of N2O4 = 92.02 g/mol

Q: How many moles of phosphorus are required to produce 15.5 g P406 in the following equation? 4 P(s) +…

A:

Q: If you are given 65.2 grams of CO2, how many moles is this? (MW of CO2 = 44.01 g/mol) O 1.48 mol O…

A: mole of any species is defined as when given mass is divided by molar mass.

Q: Calculate each of the following quantities:(a) Mass in grams of 0.68 mol of KMnO₄ (b) Moles of O…

A: (a) Mass in grams of 0.68 mol of KMnO₄ = moles x molar mass = 0.68 x 158 = 107.44 g   (b) Moles of O…

Q: How many hydrogen atoms are in 1.0g sample of acetic acid. The molar mass of acetic acid is…

A:

Q: Identify the correct statements regarding the mole. A mole of oxygen gas, O2, contains 2 x 6.02 x…

A: Avogadro’s number- The number 6.023*1023is called as Avogadro’s number in the honor of scientist…