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What is the pH of 2 M NaOH and 2 M HCl and 3 x 10^-8 M HCl (the ionization of water must be considered in order to calculate the pH of this acidic solution.)
Ammonia will react with oxygen in the presence of a copper catalyst to form nitrogen and water. From 164.5°C to 179.0°C, the rate constant increases by a factor of 4.27. What is the activation energy of this oxidation reaction?
Estimate the thickness of the lipid bilayer in a biological membrane - Estimating the thickness of a membrane by using bond distance.
An aqueous solution is 35 % by mass methylamine (CH3NH2) and has a density of 0.85 g/cm3. What is the pH of the resulting solution if 50 mL of this solution is diluted
How many moles of an ideal gas would occupy a 25.0 liter container when the temperature is 22.0° C and the pressure is 646 torr?
A solution is prepared by mixing 75.0 mL of 5.00 M HCl and 40.0 mL of 8.00 M HNO3. Water is then added until the final volume is 1.00 L. Calculate [H+], [OH -], and the pH for this solution.
a mixture of gases containing .20 mol of SO2 and .2 mol of O2 in a 4.0L flask reacts to form SO3. If the temperature is 25C, what is the pressure in the flask after reaction is complete?
The pressure of the gas remaining in the vessel of unknown volume was 0.882 atm. All the measurements were done at the same temperature. What is the volume of the vessel?
Nitrogen dioxide is obtained in a cylinder, but exists in equilibrium with dinitrogen tetrooxide. A 5.00g sample of this mixture is transferred to a 0.5L flask at 298K.
If it takes 4.67 times as long for a particular gas to effuse as it takes hydrogen under the same conditions, what is the molecular mass of the gas?
1. Gasoline (assumed to be 100% octane) is combusted in your car according to the following chemical reaction: 2 C8H18 + 25 O2 -> 16 CO2 + 18 H2O
Show your work in finding the mass of the nitrogen collected, The original sample, which decomposed to produce the nitrogen gas, weighed 0.1198 g. Find the percent nitrogen in the sample
What is the theoretical concentration of the 2,6-dichloroindophenol solution? What is the theoretical volume of 2,6-dichloroindophenol needed to neutralize 10mL of the vitamin C standard solution?
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