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The equation for the combustion of acetone is: 2 C3H6O + 8 O2 ---> 6 H2O + 6 CO2 + 852.6 kcal How much heat will be given off if 0.18 mol of acetone is completely burned?
What are several pluses for businesses that use outsourcing techniques? What are several minuses? What can companies do to make the best of these widespread practices?
Find the pH of each of the following solutions of mixtures of acids.
Interpret each chemical equation in terms of interacting particles.
If 4.86 g of solid carbon dioxide was placed into an evacuated 2.00 L container, sealed, and then heated until it completely changed to a gas with a final temperature of 75 degrees celcius, what wo
When M2S3(s) is heated in air, it is converted to MO2(s). A 3.700-g sample of M2S3(s) shows a decrease in mass of 0.207 g when it is heated in air. What is the average atomic mass of M?
what will be the heat capacity of a constant pressure, coffee-cup calorimeter that contains 100.0 ml of 3.0 M HCl solution? the density of the sloution is 1.098 g/mL, the specific heat capacity of t
The pka of the acid function at the 2-position is approximately 2, whereas that at the 1-position is about 3. Which of the two is more acidic and why?
if 7 moles of sulfur atoms and 10 moles of oxygen molecules are combined to form the maximum amount of sulfur trioxide, how many moles of which reactant remain unused at the end? 3S + 3O2 = 2SO3
Cumene,a hydrocabon is a compound composed only of C and H. It is 89.94% carbon, and its molar mass is 120.2g/mol. What are the empirical and molecular foemulas of cuene?
Assuming equal concentrations of conjugate base and acid, which one of the following mixtures is suitable for making a buffer solution with an optimum pH of 9.2 - 9.3?
2ZnS + 3O2 = 2ZnO + 2SO2 how many moles of Zno are produces when 32 gms of oxygen is allowed to react with an excess of ZnS?
The bromination of anisole to provide the major product you proposed. Write the resonance structures for any charged, delocalized intermediates that are involved.
Calculate the equilibrium value of Pb+2(aq) in 1.00 L of saturated PbC12 solution to which 0.250 moles of NaCl(s) has been added. Assume that no volume change occurs.
Calculate the empirical formula of the hydrocarbon, if upon combustion at STP, 9.01 grams of liquid H2O and 11.2 liters of CO2 gas are produced.
mineral oil can be used in place of mercury n certain pressure-measuring instruments whan small pressure changes are to be measured. What is the pressure of and oxygen sample in mm of mineral oil it
If I burn 0.315 moles of hexane (C6H14) in a calorimeter containing 5.65 liters of water, what's the molar heat of combustion of hexane is the water temperature rises 55.4 ºC?
The thickness of a dollar bill is 0.15 mm. What is the height, in light-years of a stack of Avogadro's number of dollar bills? (Hint: 1 light-year is the distance that light travels in exactly 1 yea
If a bottle of nail polish remover contains 150 grams of acetone, how much heat would be released by its complete combustion?
If you are given a 0.33 g piece of sodium metal to react with water, how many moles of HCl would it take to neutralize the sodium hydroxide produced?
Consider a solution that is 0.10 M in a weak triprotic acid which is represented by the gen- eral formula H3A with the following ionization constants: K1 = 1.0 × 10-3, K2 = 1.0 × 10-8, K
A molecule of chlorine dioxide (ClO2) at 25oC has a velocity of 306 m/s. What is the kinetic energy in joules of the molecule at this temperature?
Assume that patient blood lead levels are 0.580 mg/L, that total blood volume is 5.1 L, and that 1 mol of succimer binds 1 mol of lead. What minimum mass of succimer in milligrams is needed to
Some of the sulfur dioxide ends up as sulfuric acid ( H2SO4) in acid rain. What mass,in grams, of sulfur dioxide is needed to react with 37.50 moles of oxygen?
A calorimeter contains 29.0 mL of water at 12.0, ^{circ}C. When 2.50 g of rm X (a substance with a molar mass of 50.0 g/mol) is added, it dissolves via the reaction