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A 111.2mL sample of 0.110 M methylamine CH3NH2, Kb = 3.7*10-4) is titrated with 0.255 M HNO3. Compute the pH after the addition of each of the subsequent volumes of acid.
24.0mL
48.0mL
72.0mL
a 0.450-kg ice puck moving east with a speed of 3.00ms has a head-on collision with a 0.900-kg puck initially at rest.
A sample of methane gas (CH4) having volume of 1.80L at 25oC and 1.65atm was mixed with a sample of oxygen gas having a volume of 35.0L at 31oC and 1.25atm. The mixture was ignited to form carbon dioxide and water.
one cup is equivalent to 237 cm^3. In 1 cup of oil has a mass of 216 g. What is the density of olive oil in g/cm^3
Solid silicon and solid magnesium chloride form when silicon trichloride gas reacts with magnesium metal. Write a word equation and an unbalanced formula equation.
what is the maximum wavelength of light that can be used to observe the photoelectric effect? answer in nm.
If you have 260.0 mL of water at 25. C and add 110.0 mL of water at 95.0 C, what is the final temperature of the mixture. Use 1.00 g/mL as the density of water.
A unit of heat energy that was formerly used frequently was the calorie (cal). Calculate the calorimeter constant for the coffee-cup calorimeter in terms of cal/g degrees C.
What is the value of the equilibrium constant for the cell reaction below at 25°C? E°cell = 0.30 V
An organofluorine compound has a density of 0.773 g/L at 18.5 C and 223 mm Hg pressure. calculate the molar mass of the compound
calculate the freezing point depression and osmotic pressure at 25 degrees c of an aqueous solution of 1.0 gl of a
Calculate the Gibbs energy of the reaction (delta G rxn) at 25'C for the above rxn when all three gases are at 0.0010 atm. Kp = 1.8 x 10 ^ - 18
Cobalt oxide, CoO, is a largely ionic compound. What coordination number and crystal structure would you expect for this oxide
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