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Circle the compound in each pair that you would predict to be more soluble in water. Give a very brief explanation for your choice. a. Nitrogen gas or Hydrogen fluoride gas b. Quartz crystal or (NH4)2SO4 crystal
Estimate the temperature and pressure where 1.0 mole of O2 will correspond to 1.0 mole of N2 at 3.0 atm and 10 degrees Celsius.
The density of helium is .01784g/l at S.T.P. I a given mass of helium at S.T.P is allowed to expand to 1.500 times its inital volume bu changing the temperature and pressure,
given that Go = 5.02 kcal/mol for the complete reaction catalyzed by isocitrate dehydrogenase and that Go = 4.71 kcal/mol for the nonoxidative decarboxylation of oxalosuccinate, oxalosuccinate + H+ ----> CO2 + a-ketoglutartate.
a balloon is filled to a volume of 7.00x102 ml at a temperature of 20.0 degrees c. the balloon is then cooled at
A buffer is composed of 0.400 mol H2PO4 and 0.400 mol HPO4 diluted with water to a volume of 1.0 L. The pH of the buffer is 7.210. How many moles of HCL must be added to decrease the pH to 6.210? The answer is .327 mol. Can you please explain how ..
calculate the vapor pressure of a solution of glycerol of 265ml in 3.80x102ml of h2o at the normal boiling point of
What is the molarity of a solution formed by mixing 20.0 g sulfuric acid with enough water to make 500.0 mL of solution?
what mass of water could be heated by burning 1g of paraffin wax from 0 degrees celcious to 37 degrees celious when teh
Calculate the molar solubility of thallium chloride in 0.20M NaCl at 25 degrees Celcius. Ksp for TICl is 1.7 x 10 -4. What volume of 0.500 M HNO3 is needed to titrate 60.00 mL of 0.500 M Ca(OH)2 to the equivalence point?
Why did the discrepancy between experiments and classical theory for blackbody radiation occur at high and not low frequencies
Consider the reaction 4KO2(s) + 2CO2(g)->2K2CO3(s) + 3O2(g) . How much KO2 is needed to react with 75.0 L of carbon dioxide at STP?
Determine the procedure to make 250ml of 0.1M H3PO4 from concentrated 85%(by mass) H3PO4.
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