mass of cryolite produced: 247.153 Which reactants will be in excess? HF ✓ NaOH Al₂O3 What is the total mass of the excess reactants left over after the reaction is complete? total mass of excess reactants: kg Na3AlF6 kg Question Source: McQuarrie, Rock, And Gallogly 4e - General Chemistry | Publisher: University Science Books Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation for the synthesis of cryolite. equation: Al₂O3(s) + 6NaOH(1) + 12HF(g) If 12.6 kg of Al₂O3(s), 59.4 kg of NaOH(1), and 59.4 kg of HF(g) react completely, how many kilograms of cryolite will be produced? mass of cryolite produced: Which reactants will be in excess? ✓ HF 247.153 NaOH 2Na3AlF6 +9H₂O(g) kg Na3AlF6 Question Source: McQuarrie, Rock, And Gallogly 4e - General Chemistry | Publisher: University Science Books

mass of cryolite produced: 247.153 Which reactants will be in excess? HF ✓ NaOH Al₂O3 What is the total mass of the excess reactants left over after the reaction is complete? total mass of excess reactants: kg Na3AlF6 kg Question Source: McQuarrie, Rock, And Gallogly 4e - General Chemistry | Publisher: University Science Books Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation for the synthesis of cryolite. equation: Al₂O3(s) + 6NaOH(1) + 12HF(g) If 12.6 kg of Al₂O3(s), 59.4 kg of NaOH(1), and 59.4 kg of HF(g) react completely, how many kilograms of cryolite will be produced? mass of cryolite produced: Which reactants will be in excess? ✓ HF 247.153 NaOH 2Na3AlF6 +9H₂O(g) kg Na3AlF6 Question Source: McQuarrie, Rock, And Gallogly 4e - General Chemistry | Publisher: University Science Books

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter5: Stoichiometry

Section: Chapter Questions

Problem 103E: Silicon is produced for the chemical and electronics industries by the following reactions. Give the...

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The carbon dioxide exhaled in the breath of astronauts is often removed from the spacecraft by reaction with lithium hydroxide 2LiOH(s)+CO2(g)Li2CO3(s)+H2O(l) Estimate the grams of lithium hydroxide required per astronaut per day. Assume that each astronaut requires 2.50 103 kcal of energy per day. Further assume that this energy can be equated to the heat of combustion of a quantity of glucose, C6H12O6, to CO2(g) and H2O(l). From the amount of glucose required to give 2.50 103 kcal of heat, calculate the amount of CO2 produced and hence the amount of LiOH required. The H for glucose(s) is 1273 kJ/mol.
Nitric acid is produced commercially by the Ostwald process, represented by the following equations: 4NH3(g)+5O24NO(g)+6H2O(g)2NO(g)+O2(g)2NO2(g)3NO2(g)+H2O(l)2HNO3(aq)+NO(g) What mass of NH3 must be used to produce 1.0 106 kg HNO3 by the Ostwald process? Assume 100% yield in each reaction, and assume that the NO produced in the third step is not recycled.
Phosphoric acid, H3PO4, can be prepared by the reaction of phosphorus(V) oxide, P4O10, with water. 14P4O10(s)+32H2O(l)H3PO4(aq);H=96.2kJ What is H for the reaction involving 1 mol of P4O10? P4O10(s)+6H2O(l)4H3PO4(aq)
Write a balanced equation for the reaction between (a) dihydrogen sulfide and sulfur dioxide gases to form sulfur solid and steam. (b) methane, ammonia, and oxygen gases to form hydrogen cyanide gas and steam. (c) iron(lll) oxide and hydrogen gas to form molten iron and steam. (d) uranium(IV) oxide and hydrogen fluoride gas to form uranium(IV) fluoride and steam. (e) the combustion of ethyl alcohol (C2H5OH) to give carbon dioxide and water.
The sugar sucrose, which is present in many fruits and vegetables, reacts in the presence of certain yeast enzymes to produce ethanol and carbon dioxide gas. Balance the following equation for this reaction of sucrose. C12H22O11(aq) + H2O(l) C2H5OH(aq) + CO2(g)
The reusable booster rockets of the space shuttle use a mixture of aluminum and ammonium perchlorate as fuel. A possible reaction is 3Al(s)+3NH4ClO4(s)Al2O3(s)+AlCl3(s)+3NO(g)+6H2O(g) Calculate H for this reaction
4.69 The pictures below show a molecular-scale view of a chemical reaction between H2 and CO to produce methanol, CH3OH. The box on the left represents the reactants at the instant of mixing, and the box on the right shows what is left once the reaction has gone to completion. Was there a limiting reactant in this reaction? If so, what was it? Write a balanced chemical equation for this reaction. As usual, your equation should use the smallest possible whole number coefficients for all substances.
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