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Calculate the mass of oxygen dissolved in a 5.00 L bucket of water exposed to a pressure of 1.13 atm of air. Assume the mole fraction of oxygen in air to be 0.21 and the Henry's law constant for oxygen in water at this temperature to be 1.3 × 10-3 M/atm.
Hydrogen bromide adds to the triple bond with a regioselectivity dictated by Markovnikov's rule. One mole of HBr adds to one mole of 1-heptyne.
Ammonia condenses to form a liquid at -33.35C at atmospheric pressure. The density of liquid ammonia at this temperature is 0.6818g/ml. If the ammonia (0.224ml) is condensed at these temperatures, what would be its volume?
How many atoms are contained in one unit cell of of this element? The atomic mass of the element is 193.5 amu.
a solution made from 6.50g of an unknown compound in 27.8g of diphenyl has a molality of .195m. Calculate the molar mass of the unknown.
What is the numerical value of the rate constant and what are the units? and Calculate the rate of this reaction when the initial concentrations of OCl- and I- are 7.6 x10-3 M and 9.6 x 10-3M respectively.
Given the reaction 4Al(s)+302(g)--2Al2O3(S), what is the minimum number of moles of oxygen gas required to produce 1.00 mol of aluminum oxide?
Calculate the average induced voltage between the tips of the wings of an airplane flying 10,000m above West Haven at a speed of 1080 km/h. The wingspan of the airplane is 36.6 m, the Earth's magnetic field in West Haven is 5.5×10-5 T and the dip ..
what molecule would give the following mass spec data. this molecule shows three significant fragment ions. Alpha-fragmentation forms the m/z =59 base peak
a balloon filled with 39.1 mole of helium has a volume of 876l 0.0oc and 1.00 atm presssure. the temperature of the
Compounds in a and b were named incorrectly. On a sheet of paper draw the molecule that fits the given description. From the structure you drew determine the correct IUPAC name. Write the correct IUPAC name in the blank.
0.1M HCl is added into a mixture of 25mL of water and 25mL of Ca(OH)2. For the end point to be reached 1.5mL of 0.1M HCl is added into the mixture
calculate the ph of a solution of calcium carbonate having [calcium ion]=1.3x10^-4M,[carbonate ion]=3.8x^10-5M and [HCO3]=8.8X10^-5M
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