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Consider benzene (C6H6) in the gas phase. State a reaction that corresponds to breaking all the carbon-carbon bonds in C6H6 (g).
gold-198 is a beta emitter with a half-life of 2.7 days. what percentage of a gold-198 sample remains after 13.5 days?
Consider the following equalibrium: 4NH3(g) + 3O2(g) 2N2(g) + 6H2O(g). Suppose 0.30 mol of NH3 and 0.40 mol of oxygen are added to a 5.0-l container. If x mol of water is present at equalibrium, how many moles of ammonia will remain at equalibri..
What volume of 3.50 M H3PO4 was required to make the buffer solution. What mass of NaOH was required to make the buffer solution. How many mL of 2.00 M HCl must be added to the buffer solution to change its pH by 1.25 units
find the expected freezing point of a water solution that contains 268 g of aluminum nitrate alno33 in 8.50 kg of
Chloral hydrate, a sedative, contains C 14.52%, H 1.83%, Cl 64.30%, and O 19.35%. If it has a molar mass of 165.42 g, what is the molecular formula of chloral hydrate?
Why is a mass measurement of an object more important than the volume measurement of an object. and What does the range value of 0 mean
What is the partial pressure in atm of N2 of ths mixture if it is held in 12.60-L vessel at 15 degrees celcius. What is the partial pressure in atm of H2 of this mixture if it is held in a 12.60 -L vesssel at 15 degrees celcius
In an attempt to determine the identity of the unknown metal in the orginal mixture you took 1.25 g of the pure metal your separation and determined its density by water displacemnt. If the density of the metal was 7.9 g/mL, what us the volume of ..
54g of a certain metal at 98 degree Celsius was placed into 80ml of water at 297K. Assuming no heat is lost to the surrounding, what is the temperature of the water and the metal
A sample of unknown material containing C,H,& O is analyzed to determine the molecular weight. A 1.25g sample is burnt and produces 1.72g of CO2.
When methane is burned with oxygen, the products are carbon dioxide and water. If you produce 18 grams of water from 8 grams of methane and 32 grams of oxygen
A mixture of gases contains 5.31 g of He, 2.91 g of SO2, and 5.62 g of Ne. If the total pressure of the mixture is 3.81 atm, what is the partial pressure of each component
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