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What is the change in pH when 0.005 moles of HCl is added to 0.100 L of a buffer solution that is 0.100 M in CH3CO2H and 0.100 M NaCH3CO2? The Ka for acetic acid is 1.8 x 10 -5.
how does its vapor pressure change over time? It continues to steadily increase. It increases at first, then remains constant
At 10 degrees, Kc = 56.3 for the reaction below. H2 + Cl2 --> HCl
How many grams of Cu(OH)2 can be produced from the reaction of 0.500g Cu with 30.0 mL of 3.0M NaOH? what is the limiting reagent?
a mass of 48.5 g of a certain substanse can be disolved in 29.1 cm3 of water at 20 degrees celcius. Calculate the solubility of this substance per gram of water at the same temperature.
If 0.90 mole of MnO2 and 48.2 g of HCl react, which reagent will be used up first?
when perfoming a distillation some of the material will vaporize but will not collect in the reservoir of the Hickman head
The activation energy of a certain reaction is 45.3kJ/mol . At 24{~}^{\circ}\rm C , the rate constant is 0.0160s^{-1} . At what temperature in degrees Celsius would this reaction go twice as fast?
Which is the stronger base, HSO4- or H2O? b. Which is the stronger base, H2O or OCl-?
For each reaction, calculate the mass (in grams) of the product formed when 10.1g of the underlined reactant completely reacts. Assume that there is more than enough of the other reactant.
The lethal inhalation dose of sarin for a 200 pound person has been determined to be 0.0015 mg. Determine the LD50 of sarin that researchers used to calculate this lethal inhalation dose.
Calculate the change in temperature for 4.50 g of CaCl2 dissolved in 90.0 mL of H20. Assume that the calorimeter absorbs no heat (ie. Ccal=0)
if you burn 40.7 g of hydrogen and produce 364g of water, how much oxygen reacted?
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