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Problem- Calculate the [H3O+] and pH of each of the following H2SO4 solutions. Calculate pH for 0.50 M solution.
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iron sulfide fes is a sparingly soluble salt with a ksp of 6.3 x 10-18. calculate the molar solubility of iron sulfide
At a certain temperature, the solubility of strontium arsenate, Sr3(AsO4)2 is 0.0620 g/L what is the Ksp of this salt at this temperature
A 1L flask is filled with 0.25 mol N2and 0.65 mol H2 at 20 oC. These gases react to make NH3, heating up the flask to a temperature of 45 oC.
Gaseous ethane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 10.82 g of ethane is mixed with 62.90 g of oxygen.
calculate the pressure change needed to completely hydrogenate this substance at room temperature and 50 degrees celcius.
Consider an experiment where 35 mL of 0.175 M HOAc is titrated with 0.25 M NaOH. What is the pH at the equivalence point of this titration. The Ka for HOAc is 1.8x10^-5
in a portable oxygen system the oxygen o2 iscontained in a cylinder whose volume is 0.00250 m3. afull cylinder has an
a 0.21l sample of hydrogen gas is collected over water. the reaction that allowed the gas to be liberated was between
Name two amino acids that are mostly positively charged at neutral pH. A Lysine and arginine B Histidine and arginine C Cysteine
Explain Maxwell's Distribution diagram and how does it relate to temperatures. What happens to this distribution as the temperature is increased
One tablespoon of peanut butter has a mass of 15g. It is combusted in a calorimeter whose heat capacity is 130 kJ/degree centigrade. The temperature of the calorimeter rises from 22.3 to 25.3 degree centigrade. Find the food caloric content of pea..
1. Why does milk go sour and what causes the formation of curd? 2. Explain why during the experiment casein precipitates wheen hydrochloric acid is added to it.
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