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What extinguishing agent can best fulfill the mission of saving lives and protecting property better than water? Why?
calculate the mole fraction of soluteand solvent present in the solution.
Identify the unknown gas - Find the molecular formula of the compound
A solution of NAOCH3 in methanol can be prepared by adding NaH to methanol (CH3OH). A flammable gas is produced as a byproduct. a) write the acid-base reaction that takes place
Problem- What is the pH change of a 0.260M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.130M with no change in volume
If 38.6 grams of hydrogen sulfide gas (H2S; MM = 34.08 g/mol) react with 36.3 grams of oxygen gas (O2, MM = 32.00 g/mol), what is the mass of sulfur dioxide (SO2, MM = 64.06 g/mol) gas produced
When benzoic acid is partitioned between diethyl ether and queous sodium hydroxide solution and the aqueous layer is separated, acidification of the aqueous solution yields a precipitate.
What is the pH of the resulting buffer?
A graduated cylinder contains 155 mL of water. A 15.0 g piece of iron (density = 7.86 ) and a 20.0 g piece of lead are added. What is the new water level in the cylinder?
How many kilojoules of heat are required to evaporate 1 liter of water at 1 atm if the initial water temperature is 20 degrees Celcius
If 1/2 mole of oxygen are reduced at the end of electron transport, how many moles of electrons and protons are needed in order to accomplish that conversion?
The half-life of a particular element is 0.01256 years. How long would it take (in minutes) for the amount of to decrease to 89.56% of its initial amount, considering that radioactive decay is a first-order reaction.
Nitrogen dioxide reacts with water to produce oxygen and ammonia; 4NO2(g)+6H2O(g)-->7O2(g)+4NH3(g). At a temperature of 415 degrees C
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