Concept explainers
ercise 7.4 Classify each of the following reactions in as many ways as possible.
msp;
msp;
msp;
msp;
msp;
msp;
msp;
msp;
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Chapter 7 Solutions
Introductory Chemistry: A Foundation
- What is Hrxn for reaction of iron(III) oxide and carbon monoxide to give iron metal and carbon dioxide gas? Use the following reactions: 4Fe(s)+3O2(g)2Fe2O3(s)H=1648.4kJ4CO(g)+O2(g)2CO3(g)H=565.98kJarrow_forwardEthanol, C2H5OH, is a gasoline additive that can be produced by fermentation of glucose. C6H12O62C2H5OH+2CO2 (a) Calculate the mass (g) of ethanol produced by the fermentation of 1.000 lb glucose. (b) Gasohol is a mixture of 10.00 mL ethanol per 90.00 mL gasoline. Calculate the mass (in g) of glucose required to produce the ethanol in 1.00 gal gasohol. Density of ethanol = 0.785 g/mL. (c) By 2022, the U. S. Energy Independence and Security Act calls for annual production of 3.6 1010 gal of ethanol, no more than 40% of it produced by fermentation of corn. Fermentation of 1 ton (2.2 103 lb) of corn yields approximately 106 gal of ethanol. The average corn yield in the United States is about 2.1 105 lb per 1.0 105 m2. Calculate the acreage (in m2) required to raise corn solely for ethanol production in 2022 in the United States.arrow_forwardOne of the few industrial-scale processes that produce organic compounds electrochemically is used by the Monsanto Company to produce1,4-dicyanobutane. The reduction reaction is 2CH2CHCH+2H++2eNC(CH2)4CN The NC(CH2)4CN is then chemically reduced using hydrogen gas to H2N(CH2)6NH2, which is used in the production of nylon. What current must be used to produce 150.kg NC(CH2)4CN per hour?arrow_forward
- The reaction between nitrogen and oxygen is given below: Nz() + O2(g) → 2 NO(g) We therefore know that which of the following reactions can also occur? O2 NO,() + 2 NO(2) + Oz(g) ON,0(g) +2 NH3(g) +2 02(g) O2 NO(2) + O2(g)→ 2 NO:(g) O None of the Above Submit Answer Try Another Version 6 item attempts remainingarrow_forwardYour lab partner accidentally mixed some sodium chloride with your sample of Epsom salts (M9SO,·7H,O). You want to make a standard solution of magnesium ion, and this is the only sample of a magnesium salt you have. To determine the amount of magnesium salt in the mixture, you heat 100.00 g to drive off the water of hydration and find that the anhydrous mixture has a mass of 73.25 g. What is the mass in grams of the original salt mixture that you must add to 1.000L of water to make a 0.1000 M solution of Mg2+ ion?arrow_forward4. Which of the following equations does not meet the definition of a formation reaction? A) O2(g) + H2(g) → H₂O2(g) B) 202(g) + H2(g) → H2O(g) D) NO(g) + O2(g) → NO2(1) E) H2(g) + Cl2(g) → HCl(g) C) H2(g) + O2(g) → H2O(l)arrow_forward
- 1) Why must the exact same mass of solution (100.0 g) be used in the neutralization reactions? 2) 50.0 g of water at 22 °C is mixed with 125 g of water initially at 36 °C. What is the final temperature of the water after mixing, assuming no heat is lost to the surroundings?arrow_forwardThe slightly soluble salt Strontium iodate, Sr(IO3) 2 , dissolves in water as follows: Sr(IO3)2 = Sr2+ + 2 IO3. The solubility is 1.3 grams per liter (g/L). What is the value of Ksp? (Note: this compound is not found in your Ksp table.) Ο 1.8 x 05 O 2.6 x 10-8 О8.8 х 10-6 O 8.8 О 1.1 х 10-7arrow_forwardBalance the following equation. Rewrite the chemical equation and include the correct coefficients and the states of matter. Fe2O3(s) + CO(g) → Fe3O4(s) + CO2(g)arrow_forward
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