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For which of the following aqueous salts will electrolysis produce hydrogen gas and oxygen gas? Check all that apply.
NiF2
NaF
NiI2
CuBr
NaI
Imagine that you have a 5.50 L gas tank and a 2.50 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch.
If the freezing point depression of water is -1.86 degrees C/M, what would be the freezing point of this solution
a 15 ml sample of a solution of pbclo32 was diluted with water to 19 ml. a 15 ml sample of the dilute solution was
A 6.0 L flask contains a mixture of methane, argon and helium at 45 degrees C and 1.75 am. If the mole fractions of helium and argon are 0.25 and 0.35, respectively, how many molecules of methane are present
Exposure to high doses of microwaves can cause damage. Estimate how many photons, with wavelength = 12 cm, must be absorbed to raise the temperature of your eye by 3 degrees celcius
what volume will 300 ml of gas at 40 degrees celcius and a pressure of 720 mm hg occupy if the temperature is reduced
a sculptor has prepared a mold for casting a bronze figure. the figure has a volume of 245 ml. if bronze has a density
write structures for the various aldol condensation products you expect from the aldol self-condendsation of 2-butanone
What volume, in mL, of 0.1085 M H2SO4 would react exactly with 40.0 mL of a 0.995 M solution of KOH by the reaction: H2SO4 (aq) + 2 KOH (aq) -------> K2SO4 (aq) + 2H2O (l)
Calculate [OH-] for each of the following solutions, and indicate whether the solution is acidic, basic, or neutral.
Equal quantities of 0.010M solutions of an acid HA and a base B are mixed. The pH of the resulting solution is 9.2. Write the equilibrium equation for the reaction between HA and B.
Assume that the aluminum atoms can be represented as spheres, as shown in the drawing (Part C figure) . If each {rm Al} atom has a radius of 1.43 {rm AA}, what is the length of a side of the unit cell?
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