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Chapter 9: Q. 9.95 (page 318)
How many milliliters of a propyl alcohol solution would you need to obtain of propyl alcohol?
As an outcome, of liquid is forced to hold of solute.
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In the following diagram, blue spheres represent the element and yellow spheres represent the element .
a. Write the formulas for each of the reactants and products.
b. Write a balanced chemical equation for the reaction.
c. Indicate the type of reaction as combination, decomposition, single replacement, double replacement, or combustion.
Automobile exhaust is a major cause of air pollution. One pollutant is the gas nitrogen oxide, which forms from nitrogen and oxygen caves in the air of the high temperatures in an automobile engine. Once emitted into the air, nitrogen oxide reacts with oxygen to produce nitrogen dioxide, a reddish brown gas with a sharp, pungent odor that makes up smog. One component of gasoline is heptane. a liquid which a density ofg/mL. In one year, a typical automobile uses of gasoline and produces 411 of nitrogen oxide. (7.4. 7.8.8.6)
a. Write balanced chemical equations for the production of nitrogen oxide and nitrogen dioxide.
b. If all the nitrogen oxide emitted by one automobile is converted to nitrogen dioxide in the atmosphere, how many kilograms of nitrogen dioxide are produced in one year by a single automobile?
c. Write a balanced chemical equation for the combustion of heptane.
d. Horn many moles of gaseous are produced from the gasoline used by the typical automobile in one year, assuming the gasoline is all heptane?
e. How many liters of carbon dioxide at are produced in one year from the gasoline used by the typical automobile?
One tums tablet contains 500mg of calcium carbonate.
a. What is the formula of calcium carbonate?
b. What is the molar mass of calcium carbonate?
c. How many moles of calcium carbonate are in one roll of Tums that contains 12 tablets?
d. If a person takes two Tums tablets, how many grams of calcium is obtained?
e. If the daily recommended quantity of to maintain bone strength in older women is 1500mg how many Tums tablets are needed each day to supply the needed calcium?
Classify the solute represented in each of the following equations as a strong, weak, or nonelectrolyte:
a.
b.
c.
An intravenous solution to replace potassium loss contains each of and . How many moles each of and are in of the solution?
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