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Reaction-energy diagram and free radical
1. An energy maximum in a reaction-energy diagram would be labeled as which of the following?
a. Reactant
b. Product
c. Transition State
d. Intermediate
2. Which of the following best describes the shape of the methyl free radical?
a. linear
b, planar
c, tetrahedral
d. pyramidal
The annual production of zinc sulfide (ZnS) is 3.5 10^4 tons. Estimate the number of tons of SO2 produced by roasting it to extract zinc metal.
Liquid octane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 9.1 g of octane is mixed with 22.7 g of oxygen.
Important information about Molarity, You have 20 ml of 10% Bromophenol Blue (BPB). Using a 10% stock, how would you prepare 5 ml of a 0.2 % stock?
The solubility of CO2 in water at 25°C and 1 atm is 0.034 mol/L. What is its solubility under atmospheric conditions? (The partial pressure of CO2 in air is 0.0003 atm.) Assume that CO2 obeys Henry's law.
determine what mass of AgCl silver chloride can be formed from 1.03L of a 0.132M solution of AgNO 3 silver nitrate
At 760 K, 15% of a sample of cyclopropane changes to propene in 6.8 min. What is the half-life of cyclopropane at 760 K?
Calculate delta E for the combustion of a gas that releases 195.0 kJ of energy to its surroundings and does 54.5 kJ of work on its surroundings.
Titrations: Finding Concentration, A 35.00 mL solution containing an unknown concentration of pyruvic acid required 25.13 mL of 0.2011 M NaOH to reach the end point.
How much energy would be required to melt 26 g of HCl at its melting point of -110.8 ?C?
Calculate the pressure in the flask in atmospheres and torr also If the sealed-tube manometer in had a height difference of 20.0 inches between the Hg levels?
What are the total pressure in the flask and the partial pressure of HOF after exactly 30 minutes and After 45 minutes If the partial pressure of HOF in a 1.00-L flask is initially1.00 × 10 2 mm Hg at 25 °C?
Estrone is a female sex hormone that is known to contain 80.0% carbon, 8.2% hydrogen, and the remainder oxygen. If 793mL of estrone is found to have a mass of 4.97g at 0.90atm and 200oC, find the molecular formula for estrone.
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