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Question: A deep-sea diver uses a gas cylinder with a volume of 50.0 L and a content of 51.2 g of O2 and 132.6 g of He. Calculate the partial pressure of each gas and the total pressure if the temperature of the gas is 29 ºC
If the mass of NaCl is 11.69 g. What would be the number of moles of all solutes (including cations and anions)
How many moles of hydrogen are in a sample of octane, C8H18, that contains 303.9 grams of carbon
A 16 ounce specialty coffee drink contains 216 mg caffeine. If all the caffeine is extracted and dissolved in an equal amount of water, what is the pH of the solution. What is the percent ionization.
A solution of NH4Cl is prepared and its molarity is 1.00 x 10-3; what is the pH of this solution. Show all work.
The half-cell is a chamber in the voltaic cell where one half-cell is the site of an oxidation reaction and the other half-cell is the site of a reduction reaction.
An unknown element forms a yellow ion, XO . It forms a precipitate with silver ions. If 48.0 mL of a 0.250 mol/L solution of silver ions is added to a solution of the unknown ion, 1.856g of a red-brown precipitate are formed. Determine the iden..
If you want to feed everyone, but still have equal numbers of buns and hot dogs, what is the minimum number of packages of buns and hot dogs you need, respectively?
A solution is created by adding 0.05 moles of H2CO3 (3.1 g, total mass) to 5-L of water, resulting in a pH of 4.2. What is the alkalinity of this water (in meq/L)? Does the answer make sense, why or why not
Order the following compounds in terms of increasing polarity. How many valence shell electrons are in the molecule CCl4
when 1.6768 g of an organic iron compound containing fe c h and o was burned in o2 3.1363 g of co2 and 0.89758 g of h2o
Name three compound types of organic compounds (families) that have the -C=O functional group but not the hydroxyl group.
Calculate the relative proportions of two conformers A and B in a compound, assuming that an energy of 15.5 kj/mol is required to go from
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