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An aqueous solution has a vapor pressure of 84.0 at 50 . The vapor pressure of pure water at this temperature is 92.6 . What is the concentration of in mass percent?
Two beakers containings different buffer solutions of lactic acid/lactate (CH3CHOHCO2H/CH3CHOHCO2- or LacH/Lac-) and quinhydrone are prepared.
You are expected to design a car that works with photovoltaic panels. Assume that the driver is 75kg and the expected speed is 50km/hr.
How many moles of nitrate ions are present in a sample that contains 4.82 moles of chromium(III) nitrate, Cr(NO3)3
What effect on the temperature of a boiling liquid and on its distillation temperature is produced by a soluble, nonvolatile impurity?
what is the mass of pentane that vaporizes? density is .626g/mL and pure vapor pressur eis 511 at 25 degree celcius. suppuse hexane and pentane each 75 ml is mixed in previoulsy evacuated 200 ml at 25 degree celcius.
The objective is to implement a menu-based system for Bank Accounts in order to simulate a very simple banking system. Many structures have to be declared to manage bank accounts.
What is the percent yield of a reaction in which 216 g phosphorus trichloride reacts with excess water to form 134 g HCl and aqueous phosphorus acid (H3PO3)
How many grams of Na3PO4 will be needed to produce 400ml of a solution that has a concentration of Na+ ions of 0.900 ?
What volume of fuel should you bring? Assume each of the following: the fuel has an average formula of 15 of the heat generated from combustion goes to heat the water (the rest is lost to the surroundings)
Complete the following equation that illustrates a Brønsted-Lowry acid/base reaction. Phases are optional.
How many moles of ethane (C2H6) would be needed to react with 62.3 grams of oxygen gas?
Application of ideal gas law - How high can you raise the temperature of the gas without bursting the vessel?
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