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A small hot air balloon is filled with 1.02 x 10^6 L of air (d=1.20 g/L). As the air in the balloon is heated, it expands to 1.13 x 10^6 L. What is the density of the heated air in the balloon
Understand how the ability to form hydrogen bonds gives water cohesiveness and how this property is exploited by living things.
You have a sugar solution( solution A) with concentration x. You pour 1/4 of this solution into a beaker, and add an equivalent volume of water (solution B)
A saturated solution of Pb(IO3)2 in pure water has a lead ion concentration of 5.0 x 10-5 Molar. What is the Ksp value of Pb(IO3)2?
Calculate the percent ionization of nitrous acid in a solution that is 0.230 M in nitrous acid (HNO2) and 0.270 M in potassium nitrite (KNO2).
What is the difference (in pH units) between the initial pH of a 0.20 M NH3 / 0.20 M NH4Cl buffer to the pH of the buffer after the addition of 10.0 mL of 0.10 M HCl to 65.0 mL of the buffer
If the pressure exerted by ozone, {rm{O}}_3, in the stratosphere is 3.0 times 10^{ - 3} {rm{atm}} and the temperature is 251 K, how many ozone molecules are in a liter?
Some HN3 would be used up in re-establishing equilibrium Some HNO2 would be formed in re-establishing equilibrium Some HNO2 would be formed, and some N2H4 would be lost More HN3 and H2O would be formed The temperature would decrease, and the forwa..
A certain protein was found to contain 0.412% manganese by mass. Determine the minimum molecular mass of the protein.
The first equivalence point for the titration of 0.2567 grams of a weak acid is reached when a volume of 26.80mL of 0.0510 M NaOH(aq) has been added. What is the molar mass of the acid?
Which of the following, when added in equal molar amounts to the AgOH/water mixture, will lead to the greatest concentration of dissolved Ag+ at equilibrium?
Write the electron configuration for each of the following. (Type your answer in noble gas notation using the format [Ar] 4s2 3d10 4p2 for [Ar]4s23d104p2 and using the format CO2 for CO2.)
Determine if the concentration of formaldehyde and methanol as measured in water will convert to its relative organic acids? If there is a measured concentration of formaldehyde and methanol in a 1000L solution of water at temperature = 180 degrees..
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