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Using the volume of solvent calculated "which is 1.43 mL of 95% Ethyl alcohol", calculate how much sulfanilamide will remain dissolved in the mother liquor after the mixture is cooled to 0 degree C. ( solubility of sulfanilamide at 0 degree C is 14 mg/mL)
what is the theoretical yield of nitrogen in grams from part (a)? c) if the actual yield of nitrogen in the reaction in part (a) is 30.3g calculate the percent yield.
the combustion of ethane produces carbon dioxide and steam2c2h6 7o2 --- 4co2 6h20how many moles of co2 are produces
when steam condenses to liquid water 2.26kj of heat is released per gram. the heat from 168g of steam is used to heat a
A 0.10-mole quantity of CuSO4 is added to a liter of 1.0 M NH3 solution. What is the concentration of Cu2+ at equilibrium. [The formation constant for Cu(NH3)42+ is Kf = 5.0 x 1013.]
What mathematical expresssion will yield the correct volume at 177 degrees celsius and 400mgHg?
Water originally at -10 deg. celsius and 0.30 atm is heated at constant temperature until the temperature is 80.0 degrees celsius
the reaction between calcium metal and chlorine gas is described by the following thermochemical equation cas cl2g
The amount of heat needed to raise the temperature of 25 g of a substance by 15°C is 915 J. What is the specific heat of the substance?
If you measure the pH and find it to be 11.24, how many grams of triethylmine were used to make the solution?
Calculate the molar mass of the earth's atmosphere at an altitude of 500 km where the pressure is 1.6 x 10-11 bar, the temperature is, on average, 1580K and the density is 2.2 x 10-12 g/L
if 153 ml of wet h2 is collected over water at 24degc and a barometric pressure of 729 torr how many grams of zn have
dissolved in water to produce a 0.0172 M solution. The pH of the resulting solution is 2.34. Calculate the Ka for the acid.
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