True or False? One mole of molecular O2 = 6.02 x 1023 O2 molecules. Mass of O2 in 100g of CO2 = (32.0g ÷0g) x 100 = 72.7 O2

Q: Determine the theoretical mass of aspirin (acetyl salicylic acid) when using 3.682 grams of…

A: Salicylic acid reacts with acetic anhydride to give aspirin or acetylsalicylic acid and acetic acid.…

Q: 6.15×1023 KK atoms Express your answer using three significant figures.    How many moles of atoms…

A: We know 1mole = 6.022x1023  So we can easily find the number of moles by using- Number of…

Q: Give the following generic chemical reaction, determine the moles of B2 needed to react with 1.25 x…

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Q: During the decomposition of KClO3, 7.23 grams of oxygen gas are created. How many moles of KClO3…

A: The reaction is: 2 KClO3 → 2 KCl + 3 O2 mass of O2 gas formed = 7.23 g

Q: Magnesium reacts with hydrochloric acid according to the equation below: Mg + 2HC1 MgCl2 + H2…

A: To Solve this problem first we find the number of mole of HCl then we will find the mole of MgCl2

Q: 3 Cu + 8HNO3 --> 3 Cu(NO3)2 + 2 NO + 4 H₂O In the above equation how many moles of water can be made…

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Q: The balanced chemical equation for the reaction between iron(III) oxide and aluminum is: Fe203 (s) +…

A: 2 moles of aluminum and 1 mole of iron(III) oxide react to produce 1 mole of aluminum oxide and  2…

Q: Suppose a piece of silver jewelry contains 7.78×1022 atomsatoms of silver (AgAg).

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Q: Sodium metal reacts with water in the following single-displacement reaction: 2Na(s) + 2H2O(l) →…

A: Here we have to determine the limiting reactant and mass of H2 gas produced when 2.0 g of Na is…

Q: a student finds that they have 0.2929 g of NH4Cl, 0.6234 g of NaCl, and 1.3841 g of SiO2. Calculate…

A: Given Mass of NH4Cl =0.2929 g Mass of NaCl =0.6234 g Mass of  SiO2 = 1.3841g Initial mass of mixture…

Q: Consider the following balanced equation. 3 Ag(s) + 4 HNO3(aq) → 3 AgNO3(aq) + NO(g) + 2 H2O(l)…

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Q: 4 NH3 + 3 O2 → 2 N2 + 6 H2O How many moles of nitrogen gas are generated by the complete reaction…

A: Stoichiometric calculation means the calculation of masses of reactant and product involved in a…

Q: Nitrogen and hydrogen combine at a high temperature, in the presence of a catalyst, to produce…

A: The objective of the question is to determine the amount of ammonia produced, the limiting reactant,…

Q: The density of ammonia, NH3, is 7.71 x 104 g/mL. Calculate the number of moles of ammonia in a 31.9…

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Q: 5. To react with 6.00 g of carbon (MM = 12.01 g.mol-1), what minimum mass of silicon dioxide (MM =…

A: To know the mass of Silicon dioxide needed to react with 6g of Carbon, we need to find out the moles…

Q: 3 Cu + 8HNO3 → 3 Cu(NO3)2 + 2 NO + 4 H₂O In the above equation, how many grams of water can be made…

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Q: The density of octane, C8H18C8⁢H18, is 0.703 g/mL0.703 g/mL. Calculate the number of moles of octane…

A: Given Data :  1.density of octane = 0.703 g/mL  2. Volume = 49.1 mL  Molar mass of octane = 114.23…

Q: In measuring the sample that is placed into a SCUBA diver's tank it has the following gases: 52.00 g…

A: A numerical problem based on percentage concentration, which is to be accomplished.

Q: Nitrogen and hydrogen combine at a high temperature, in the presence of a catalyst, to produce…

A: The objective of this question is to determine the amount of ammonia produced, the limiting…

Q: Suppose a 250. mL flask is filled with 0.40 mol of CO, 1.6 mol of CO₂ and 0.20 mol of H₂. This…

A: The ICE table gives the initial concentration of compounds, change in concentration of compounds,…

Q: Consider the following equation: 4 NH3 (g)   +   5 O2 (g)   →   4 NO (g)   +   6 H2O (l) When 6.97…

A: For the given reaction:  4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(l)  It is told that oxygen is present…

Q: Consider the following chemical reaction: 2CH3OH(1) + 302(g) → 2CO2(g) + 4H20(1) Calculate the…

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Q: The mole is a counting number that allows scientists to describe how individual molecules and atoms…

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Q: Using the Identification of Substances by Physical Properties table in the question above, what…

A: Answer is explained below.  To determine the density of any compound (here Cadmium nitrate • 4H2O),…

Q: In the precipitation reaction AgNO3 (aq) + KCI (aq) O AgCl O KCI O KNO3 O AgNO3 AgCl (s) + KNO3…

A: A precipitation reaction is a chemical reaction in which two solutions combine to form insoluble…

Q: Enter your ansTwer in the provided box. One of the reactions that occurs in a blast furnace, in…

A: Given data : Mass of Fe = 1.49 × 103 kg = 1.49 × 106 g Mass of Fe2O3 = 2.38 × 103 kg

Q: Consider the reaction 3X + 2Y → 5C + 4D With excess Y, how many moles of X are needed to produce…

A: Given, 3X + 2Y ➝ 5C + 4D Y - excess reactant moles of D produced = 24.00 moles moles of X are needed…

Q: - ] 3 Consider the reaction 1205(g) + 5 CO(g) → 5CO2(g) + 2(g) 80.0 grams of iodine pentoxide, 1205…

A: Number of moles is calculated by dividing the given mass with molecular mass. In the given question…

Q: of Br2, in grams, is required for complete reaction with 9.56 g of A g Br2 of white, solid Al,Bre is…

A: Given,  Balanced chemical reaction,  2Al + 3Br2 ----> Al2Br3 Mass of Al = 9.56 g Molar mass of Al…

Q: Consider the reaction 3X + 2Y → 5C + 4D With excess Y, how many moles of X are needed to produce…

A:

Q: 410.0 mL of a 4.8 mol/L silver nitrate (AgNO 3 ) a reaction flask. Calculate the mass in kilograms…

A: Given Mass of silver nitrate =m g  Molar mass of silver nitrate = 169.87 g/mol Moles = Mass ÷  Molar…

Q: For the reaction P4 O10(s) + 6H2O(l) → 4H3PO4(aq), what mass of P4O10 must beconsumed if 1.68 ×…

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Q: During the decomposition of KClO3, 4.14 grams of oxygen gas are created. How many moles of KClO3…

A:

Q: For the reaction P4010(s) + 6H₂O(l) → 4H3PO4(aq), what mass (in gram) of P4010 must be consumed if…

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Q: Complete the table below for calculating the molar mass of the ionic compound silver sulfide.…

A: For determining molar mass of a compound we need to know the formula of the compound.

Q: Give the stoichiometric coefficient for oxygen when the following equation is balanced using the…

A: C3H8O (l) + O2 (g) ------> CO2 (g) + H2O (l)

Q: The theoretical yield of CCl4 is 50 g. If the actual yield from the reaction is 38 g of CCl4, what…

A: The given problem can be solved by using the formula given below as; Percent Yield=Actual…

Q: Be sure to answer all parts. The fertilizer ammonium sulfate, (NH),S0, is prepared by the reaction…

A: We have reaction of ammonia with Sulphuric Acid to give ammonium sulfate , we have to calculate mass…

Q: During the decomposition of KClO3, 2.84 grams of oxygen gas are created. How many moles of KClO3…

A:

Q: What is the mass in grams of H2 that can be formed from 89.6 grams of NH3 in the following reaction?…

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Q: The reaction releases 251 kJ of heat. What is the AH for the reaction written? kJ/mol as

A: Given information: Mass of liquid methanol = 11.08 g Heat released (q) = 251 kJ

Q: What is the formula (solve for x) for the original hydrated sample of copper (II) sulphate? You…

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Q: What mass of chlorine gas, in grams, is needed to react completely with 16.3 g of aluminum?…

A: A balanced chemical equation contain equal number of atoms of each elements on both sides of the…

Q: determine the theoretical yield of the product. Calculate the theoretical yield in grams Al₂O₃ from…

A:

Q: Given that 1 capsule is 600 mg and a bottle has 30 capsules, kindly answer the amount (g) in excess…

A: Limiting reagent is the reactant that is completely consumed in reaction. It produces least amount…

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.