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As per to the collision theory of chemical reactions, explain what three things are necessary for a chemical reaction to occur?
question a glycine buffer is prepared by mixing 100 ml of 1.0m glycine ph 6.0 with 100 ml of 0.5m naoh and 300 ml of
A 275mL sample of O2 is collected over water at 60 degrees C the total pressure 755 torr what is the volume of O2 at STP?
Consider the cell prepared with 2.0 M Cd2+ and 0.45 M Zn2+ solutions: Zn(s) + Cd2+(aq) --- Zn2+(aq) + Cd(s)
Explain the terms resonance and delocalized electrons. why do we draw resonance structures
Metal ions can also be placed in a spectrochemical series. In this case, larger effective nuclear charges generally lead to larger values for Delta cm^-1. Based on this principle, predict a spectrochemical series for the following ions
Determine the molecular formula of an unknown perfect gas composed primarily of Nitrogen and Oxygen. At -3 degrees Celsius and when the pressure is 101.325kPa the density is 1.354 g/L.
The surface area of the nail is 8.59 cm. The density of the zinc is 7.13 g/cm3 how many zinc atoms are used in the coating?
At a certain temperature* (probably not 25 ºC), the solubility of silver sulfate, Ag2SO4, is 0.023 mol/L. Calculate its solubility product constant for this temperature.
A flask is charged with 1800atm of N2O4 (g) as well as 1.00 atm NO2 (g) at 25 C, as well as the flowing equilibrium is achieved. N2O4 2NO2, after equilibrium is reached the partial pressure of NO2 is 0.519 atm.
You weigh 10 of the rings as well as find that they have combined mass of 7.38g; you then place them Ina graduated cylinder 2.5 cm in diameter as well as observe that the water level rises by 8.45 mm. Are the rings pure silver
Assume that all ethanol is transformed into CO2 and assume the lake contains 10^8 liters of water. Explain your answer with the chemical reaction involved and any assumptions you make.
if two atoms of element A react with three atoms of element B, what is the chemical formula for the resulting compound
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