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Notdumb is a drug widely utilized to treat stupidity. A solution created by dissolving 15.5 g of notdumb in20 mL of water has a freezing point 2.130C below that of pure water. Explain what is the molar mass of notdumb in g/mol? density of water is 0.989 g/mL as well as Kf = 1.860C/m; Presume i = 1 for Notdumb
At a certain temperature and pressure 4.2 L of N2 reacts with 6.3 L of O2. If all the N2 and O2 are consumed, what volume of N2O3, at the same temperature and pressure, will be produced?
Will solutions of the following salts be acidic, basic, or neutral? a)K2SO4 b)KNO2 c)CaF2 d)NH4Cl
What is the de Broglie wavelength in cm, of a 12.7 g hummingbird flying at 1.15 multiplied by 102 mph (1 mile = 1.61 km.)
consider the following equilibrium process at 700degc.2h2g s2g 2 h2sganalysis shows that there are 2.50 moles of h2
The valence electrons of group 5A elemnts are in the 6s subshell. 8. The highest principle quantum number of period 2 elements is 2.
a quantity of 2.00x102 ml of 0.862 m hcl is mixed with 2.00x102ml of 0.431 m baoh2 in a constant-pressure calorimeter
What five chemical tests would be performed to determine the difference between the starting alkene and the alcohol product of a hydroboration-oxidation reaction
One mole of an ideal gas is contained in a cylinder with a movable piston. The temperature is constant at 77°C. Weights are removed suddenly from the piston to give the following sequence of three pressures.
Determine the theatrical yield if 1.56 grams of hydrogen is permitted to combines with 9.70 grams of nitrogen producing 1.43 grams of ammonia?
which of the following is a property of an ionic compound?softmalleablelow boiling pointhigh melting
Explain how would you make 100mL of a carbonic acid buffer at 0.2 M as well as pH = 9.8 using 0.5 M HCO3 and either 0.1 M NaOH or 0.1 M HCl and water
the steam distillate contains a significant quantity of water, along with the cyclohexanone. how is the water removed from the steam distillate?
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