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Why is a melting point of an impure compound depressed and its range is increased when you compare it to the pure compound?
when 56.0 g calcium and 34.7 g nitrogen gas undergo a reaction that has a 88.0 yield what mass of calcium nitride
The four unit separation train shown in figure 1.1 has been designed to separate 1000 gmol/hr of a hydrocarbon feed containing 20% CH4, 25 % C2H6
aqueous solutions of ironiii chloride and sodium hydroxide are mixed together to form a combined solution that is 0.015
what can you say about the relative buffering abilities of solutions( ranging pH 5-7) when they are challenged by acid
To prepare a solution of NaCl, you weigh out 2.634(±.002)g and dissolve it in a volumetric flask whose volume is 100.00(±0.08)ml. Express the molarity of the solution, along with its uncertainty, with an appropriate number of digit.
Consider the reaction: 2 K(s) + 2 H2O(l) -> 2 KOH(aq) + H2(g), DH = ? The heat released when 24.9g of K reacts with excess water is 124 kJ. Determine the enthalpy change, DH, for the above equation as written
What mass of each will be present in the air assuming the liquid and vapor are in equilibrium? The vapor pressures at 300 K are 3.2 kPa, 13.1 kPa, and 0.23 kPa respectively.
What is the structure of the so-called Garner Aldehyde? Why is this compound a popular building block in the synthesis of more complex structures
From data below, calculate the total heat (in J) associated with the conversion of 0.499 mol ethanol gas (C2H6O) at 301°C and 1 atm to liquid ethanol at 25.0°C and 1 atm.
The most stable form of bromine under standard conditions is as the diatomic molecule
Based on the standard reduction potential, which species is oxidized when current is allowed to flow? B. Calculate the value of Q, the reaction quotient, for this cell reaction. C. Calculate the actual cell potential at 25 degrees C.
A sample of h20 with a mass of 46.0 grams has a temperature of -58 degrees celcius. how many joules of energy are necessary to heat the steam from 100 degrees celsius to 114 degrees celcius.
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