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For the reaction O(g) + O3 --> 2O2(g) the activation energy is 17.1 kJ mol-1. By what factor does the reaction rate increase on going from 100 K to 200 K?
attach a copy of the graph of the average class data for mass of barium sulfate versus volume of barium chloride. what
How many grams of magnesium sulfate heptahydrate, MgSO4 x 7H20, are needed to prepare 400mL of a 0.450M solution
Transmittance, T, is defined as the intensity of light transmitted through a sample divided by the intensity of light incident on the sample. The absorbance, A, is defined as
Determine how much heat is formed by this reaction if a typical packet has 250 g of Fe to warm your hands (or feet for up to 4 h) express your answer in kJ?
How many dimes do you need to buy as much candy as possible? How much should all these dimes weigh? How many pieces of candy could you buy? How much would this candy weigh? How many pieces of candy could you buy with twice as many dimes?
(heatcapacity of water : 4.184 j/g/k) if the final temperature of the system is 30c, what is the specific heat capacity of the alloy
Oxygen masks for producing O2 in emergency situations contain potassium superoxide, KP2. It reacts with CO2 AND H2O in exhaled air to produce oxygen
if a .512g sample of sodium carbonate requires 25.3 mL of a sulfuric acid solution to reach the end point for the reaction, what is the molarity of the sulfuric acid.
a 32.0-g sample of water at 290. k is mixed with 51.0 g water at 320. k. calculate the final temperature of the mixture
Write the chemical equation representing the electron affinity of OH, including relevant state symbols.
What is an "addition polymer"? Describe what is true of the chemical structure of any addition polymer.
An engineer is designing a chlorine contact chamber to disinfect poultry-processing wastes. (Note these wastes are often contaminated with the pathogenic bacteria Salmonella). She can design the system to use chlorine gas (equivalent to using HOCl..
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