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The Henry's Law Constant for O2 in water at 20 C is 1.28x10-3mol/(L atm).
How many grams of O2 will dissolve in 1.75L of H2O that is in contact with air where partial pressure of O2 is 0.209atm?
Alcohols are less volatile than ethers of the same molecular weight, but the two classes of compounds have approximately the same solubility in water because:
A gas mixture with a total pressure of 750mmHg contains each of the following gases at the indicated partial pressures:CO2 , 133mmHg ; Ar,215mmHg and O2,177mmHg
Endorphins: What Are They and How Do They Work?, Describe in brief the chemistry and biology of the feel-good chemical, endorphins. Also explain why the name feel good
How many moles of NaOH are needed to raise the pH of a 4.50 L tank containing 0.00100 M HCl solution to 3.50?
A 100.0-mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3. What is the pH of the solution after 100.00 mL of acid have been added to the ammonia solution?Kb = 1.8 × 10-5.
Calculate the standard enthalpy of the reaction, \Delta {{H}^\circ}_{\rm rxn}, for the thermite reaction: \rm 2Al(s) + Fe_2O_3(s) \rightarrow 2Fe(s) + Al_2O_3(s)
If a sample of pure silver (Ag) contains 3.35 x 1022 atoms of silver, how many moles of silver are in the sample?
Determine the empirical formula of a compound containing 77.3% silver, 7.4% phosphorus and 15.3% oxygen.
How many moles of potassium carbonate will be produced if 400.0 g of potassium hydrogen carbonate are heated?
calculate the total heat (in J) needed to convert 20.0g ice at -8.00 c to liquid water at 0.600c? melting point at 1 atm
At a temperature of 425 0C and a pressure of 735 mmHg, how many grams of {NH_3} can be produced when 4.40 L of {NO_2} react.
What volume of .305M AgNO3 is required to react exactly with 155mL of .274M Na2SO4 solution
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