Ammonia, NH3, is prepared for use as a fertilizer by reacting N2 with H2. 23 (a) Write a balanced equation for the reaction. (b) How many moles of N2 are needed for reaction to make 16.0 g of NH3? (c) How many grams of H2 are needed to react with 75.0 g of N2?

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Q: A chemist requires 0.422 mol Na2CO3 for a reaction. How many grams does this correspond to?

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Q: How many grams of cisplatin are formed from 55.8 g of K2PtCl4 if the percent yield for the reaction…

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Q: Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NAOH) to produce aqueous sodium…

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Q: 1. In the combustion of methane, how many moles of O₂ are required if 6.75 mol of CH4 is to be…

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Q: The reaction for producing glucose in plants, called photosynthesis, is…

A: Given: Moles of C6H12O6 = 7.21 moles

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Q: A sample of 1.129moles of methane (CH.) is mixed with 1.754 moles of chlorine. What is the…

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Q: How many moles of H3PO4 are produced when 78.5 g P4O10 reacts completely to form H3PO4?

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Q: (a) What is the chemical formula of eugenol, the main contri butor to the aroma of cloves? (b)…

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Q: Aluminum reacts with oxygen to produce aluminum oxide. If 5.0 moles of Al react with excess O₂, how…

A: Write the balanced chemical equation for the reaction between aluminum and O2. 4Al+3O2→2Al2O3

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Q: How many grams of sulfur (S) are needed to react completely with 45.0 g of aluminum (Al) in the…

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Q: What is the percent yield of a reaction in which 200. g of phosphorus trichloride reacts with excess…

A: The corresponding reaction can be written as, PCl5+3H2O→3HCl+H3PO3

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Q: 2. Consider the reaction of CeHe + Br2 → C6HsBr + HBr a. What is the theoretical yield of C6H5B if…

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Q: The reaction of hydrogen with oxygen produces water. 2H2(g)+O2(g)→2H2O(g)   How many moles of O2…

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Q: In photosynthesis, green plants convert CO2 and H2O to glocuse, C6H12O6. How many grams of CO2 are…

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Q: 3) How many grams of MgO are produced when 40.0 grams of O2 react completely with Mg?

A: The reaction is:

Q: DDT, an insecticide harmful to fish, birds, and humans, is produced by the following reaction:…

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Q: Given: CH + O, → H,0 + CO, Is the equation balanced? If 25.0 g of C,H, is reacted with enough O,…

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Q: If 15.0 g of methanol (CH3OH) reacted, how many grams of carbon dioxide (CO2) gas would be produced?

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Q: Consider the following balanced chemical reaction: 6A + 2B3 If 18 moles of A are reacted with excess…

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Q: What mass of N2H4, in grams, is needed to react completely with 27.9 g of H2O2?

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Q: Propane, C3H8, is a common fuel used for cooking and home heating. What mass of O2 is consumed in…

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Q: Silver sulfadiazine burn-treating cream creates a barrier against bacterial invasion and releases…

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Q: In the combustion reaction of heptane (C7H14) how many moles of oxygen are needed to produce 231.3…

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Q: In the combustion of methane, how many moles of O, are required if 6.75 mol of CH, is to be…

A: Complete combustion of methane produce CO2 and H2O  CH4 + 2O2 ---------- > CO2 + 2H2O

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Q: If 100 grams of CH4 is made to react with 200 grams of O2, what mass of CO2 (in grams) is formed?

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Q: A chemist requires 0.471 mol Na2CO3  for a reaction. How many grams does this correspond to?

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Q: If 71.3 g of aspirin (C₉H₈O₄) are produced from 79.8 g of C₇H₆O₃, what is the percent yield from the…

A: Given, 71.3 g of aspirin (C₉H₈O₄) are produced from 79.8 g of C₇H₆O₃

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.