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0.1 M solutions of K2SO4, Ni(NO3)2, and LiC2H3O2 are prepared. Describe each salt as acidic, basic or neutral. Explain your choice.
The mass spectrum of an organic compound shows the relative abundances of M to be 46.08% and M 1 to be 1.495%. Assuming the peaks are caused by 12C and 13C isotopes, determine the number of carbon atoms in the compound. Natural abundances
If 1.06 moles of helium exert a pressure of 0.750 atm at 210 degrees Celius, what is the volume in milliliters
to a sample of alkaline earth metal carbonate mco3 0.250 g was added 30.0 ml hcl 0.250 ml. carbon dioxide gas evolved
How many grams of chromium would be electroplated by passing a constant current of 5.2 amperes through a solution containing chromium(III) sulfate for 45.0 minutes?
Sketch a phase diagram for benzene and locate these points: the triple point (5.5 0C and 3.4 mmHg), the normal boiling point (80.10C)
Compound XF3, where the identity of X is unknown, consists of 64.8% F by mass. What is the atomic weight of X?
At a temperature of 60 ºC, about 0.8 g CO2 can be dissolved in 100 g water. what would be the mass of CO2 which can be dissolved in 100 g water at 10 ºC?
What is the single-particle collisional frequency (for diatomic Nitrogen)at sea level, with 341 and 1.0 atm? The corresponding single-particle collisional frequency is reported as 10^10 s^-1.
The heater used to heat 1400 L of air in a hot air balloon is turned off. c) A balloon filled with helium at an amusement park is left in a car on a hot day.
A hydrogen atom in its ground state absorbs a UV photon at a wavelength of 93.8 nm. It then re-emits a photon as it relaxes to the n=2 energy level.
Draw the major organic product formed when bromobenzene reacts with nitric acid in the presence of sulfuric acid
How many mmoles of mercury are in the sample? B) How many mg's of mercury are in the sample? C)What is the percent mercury (w/w) in the ointment?
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