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For example if your compound is water and you have the information the boiling point, Tb=(99.98 C), the enthalpy of vaporization= (40.65 kJ/mol) and the molar mass= 18.02g/mol. How do I get the units to cancel to find (degrees C/molality)?
This is the given equation also: Kb=(R(Tb^2)(molar mass))/ enthalpy of vaporization
A syringe filled with air can be used to test the relationship between the temperature and the volume of a sample of gas. The syringe has a movable plunger that allows an enclosed sample of gas to be held at a constant external pressure, so the ga..
What is the density of lead (in ) if a rectangular bar measuring 0.50 in height, 1.55 in width, and 25.00 in length has a mass of 219.5 ?
Using the procedure in the lab manual for the synthesis of aspirin (MM = 180.154 g/mol), you recover 1.34 of aspirin. Calculate your percent yield of aspirin.
The decomposition of SO_2_Cl_2_ is first order in SO_2_Cl_2_ , and the reaction has a half-life of 245 min at 600 K. If you begin with 3.6e-3 mol of SO_2_Cl_2_ in a 1.0-L flask, how long will it take for the sample to decrease to 3.2e-4
What is the purpose of adding sodium sulfate to the organic layer after all of the extractions are complete?
Calculate the cell potential for the following reaction that takes place in an electrochemical cell
What is the pH at the point in a titration at which 20ml of 1.0M KOH has been added to 25ml of 1.0M HBr
How much heat is required to warm 227 g of ice from -44.9°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
Molecular bromine is 24 per cent dissociated at 1600 K and 1.00 bar in the equilibrium Br2(g) to 2Br(g). Calculate K at (a) 1600K, (b) 2000 K, given that standard enthalpy change = +112 kJ mol-1 over the temperature range.
A gas occupies 672 mL at 785 mmHg. What volume would it occupy at 453 mmHg at constant temp??
Calculate the volume of .100 M NaOH needed to titrate 25 mL of store bought vinegar
If 1.87 g of acetic acid(CH3CO2H) reacts with 2.31g of isopentyl alcohol(C5H12O) to give 2.96 gm of isopentyl acetate(C7H14O2)
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