The equation for the preparation of phosphorous in an electric furnace isQCas(PO)2 + 6SIO, + 10C 6CASIO, + 10CO + PADETERMINE THE FOLLOWING:a) The number of mol of phosphorus formed for each mol of Cas(PO,), used.b) The number of gram of phosphorus formed per mol of Cas(PO,)2 used.c)The number of mole of SiO, required per mol of Cas(PO,)2 used.

Answered: The equation for the preparation of…

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter11: Stoichiometry

Section11.4: Percent Yield

Problem 29PP

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4.19 How many metric tons of carbon are required to react with 7.83 metric tons of Fe2O3 according to the following reaction? 2Fe2O3+3C3CO2+4Fe How many metric tons of iron are produced?
Write the balanced equation, then outline the steps necessary to determine the information requested in each of the following: (a) The number of moles and the mass of Mg required to react with 5.00 g of HCl and produce MgCl2 and H2. (b) The number of moles and the mass of oxygen formed by the decomposition of 1.252 g of silver(I) oxide. (c) The number of moles and the mass of magnesium carbonate, MgCO3, required to produce 283 g of carbon dioxide. (MgO is the other product.) (d) The number of moles and the mass of water formed by the combustion of 20.0 kg of acetylene, C2H2, in an excess of oxygen. (e) The number of moles and the mass of barium peroxide, BaO2, needed to produce 2.500 kg of barium oxide, BaO ( O2 is the other product.) (f) The number of moles and the mass of required to react with H2O to produce 9.55 g of 43. Determine the number of moles and the mass requested for each reaction in Exercise 4.42.
4.21 Ammonium nitrate, NH4NO3, will decompose explosively to form N2, O2, and H2O, a fact that has been exploited in terrorist bombings. What mass of nitrogen is formed by the decomposition of 2.6 kg of ammonium nitrate?
Although copper does not usually react with acids, it does react with concentrated nitric acid. The reaction is complicated, but one outcome is Cu(s)+HNO3(conc)Cu(NO3)2(aq)+NO2(g)+H2O(l) (a) Name all of the reactants and products. (b) Balance the reaction. (c) Assign oxidation numbers to the atoms. Is this a redox reaction? (d) Pre-1983 pennies were made of pure copper. If such a penny had a mass of 3.10 g, how many moles of Cu are in one penny? How many atoms of copper are in one penny? (e) What mass of HNO3 would be needed to completely react with a pre-1983 penny?
Write a balanced equation for (a) the combustion (reaction with oxygen gas) of glucose, C6H12O6, to give carbon dioxide and water. (b) the reaction between xenon tetrafluoride gas and water to give xenon, oxygen, and hydrogen fluoride gases. (c) the reaction between aluminum and iron(III) oxide to give aluminum oxide and iron. (d) the formation of ammonia gas from its elements. (e) the reaction between sodium chloride, sulfur dioxide gas, steam, and oxygen to give sodium sulfate and hydrogen chloride gas.
Write the balanced equation, then outline the steps necessary to determine the information requested in each of the following: (a) The number of moles and the mass of chlorine, Cl2, required to react with 10.0 g of sodium metal, Na, to produce sodium chloride, NaCl. (b) The number of moles and the mass of oxygen formed by the decomposition of 1.252 g of mercury(II) oxide. (c) The number of moles and the mass of sodium nitrate, NaNO3, required to produce 128 g of oxygen. ( NaNO2 is the other product.) (d) The number of moles and the mass of carbon dioxide formed by the combustion of 20.0 kg of carbon in an excess of oxygen. (e) The number of moles and the mass of copper(II) carbonate needed to produce 1.500 kg of copper(II) oxide. ( CO2 is the other product.) (f) The number of moles and the mass of formed by the reaction of 12.85 g of with an excess of Br2.
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The reaction of WCl6 with Al at ~400 C gives black crystals of a compound containing only tungsten and chlorine. A sample of this compound, when reduced with hydrogen, gives 0.2232 g of tungsten metal and hydrogen chloride, which is absorbed in water. Titration of the hydrochloric acid thus produced requires 46.2 mL of 0.1051 M NaOH to reach the end point. What is the empirical formula of the black tungsten chloride?

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