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The Kp value was calculated as 8.491 g. What does the Kp value tell you about the solubility of benzoic in the two solvents dichloromethane and water?
How many moles of HF (Ka = 6.8 10-4) must be present in 0.165 L to form a solution with a pH of 2.25?
If only 10ml of 3.0 M KOH were used in the alum preparation instead of the specified 25 ml,would KOH then become the limiting reactant? Write the chemical equation for the conversion of Al(s) to solid aluminum alum KAL(SO4)2*12H2O (S)
Distilled water in equilibrium with air contais dissolved carbon dioxide at a concentration of 1.0 x 10^-5 M. Calculate the pH of such a solution.
Since the periodic table currently has 7 periods (and will have 7 until element 119, which will be the first element of the 8th period, is "discovered"), consider the electron shell with principle quantum number, n = 7.
A 643 mL gas sample at STP is compressed to a volume of 285 mL, and the temperature is increased to 26C. What is the new pressure of the gas in Pa? Answer in units of Pa.
Liquid butane, C4H10, is stored in cylinders to be used as a fuel. Suppose 30.4 g of butane gas is removed from a cylinder. How much heat must be provided to vaporize this much gas? The heat of vaporization of butane is 21.3 kJ/mol.
About 6 x 10^9 g of gold is thought to be dissolved in the oceans of the world. If the total volume of the oceans is 1.5 x 10^21 L, What is the average molar concentration of gold in seawater
Determine K for the reaction, H2C2O4(aq) + 2 OH-(aq) C2O42-(aq) + 2 H2O(l) given that, for H2C2O4(aq), Ka1 = 6.5 x 10-2 and Ka2 = 6.1 x 10-5. Don't forget that Kw = 1 x 10-14.
What is the difference in the chemiacl potential of this gas and an ideal gas at the same pressure and temperature?
assume you dissolve 6.73 grams na2co3 in enough water to make 250 ml of solution. what is the molarity of the sodium
Estimate the molar heat of vaporization of a liquid whose vapor pressure doubles when the temperature is raised from 85 ºC to 95 ºC.
solution from a rebuilt auto baattery. How many milliliters of 1.4M NaHCO3 must be poured on the spill to react completely with the sulfuric acid?
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