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Show that Ka Kb = Kw for a weak acid and its conjugate base OR a weak base and its conjugate acid, using the equilibrium expression for each.
You want to prepare a solution that is 0.200m in Na2CO3. How many grams of the salt must you add to 125g of water? What is the mole fraction of Na2CO3 in the resulting solution?
Glucose Isomers, When glucose is placed in water two stereoisomers are formed, one with the new OH on the opposite side of the ring than the 6th carbon
A bomb calorimeter whose components have a heat capacity of 6.66 kJ/°C is filled with 913 g of water. (The amount of water is not constant from experiment to experiment.
From the following Information, calculate the standard change of enthalpy for the combustion of coal. Compound DeltaHf (kj/mol)
determine the structures of Compounds A, B, C, D, and E. Show calculations. Support all of your structure determinations. Student performed a sodium borohydride reduction experiment.
CaCN2 + 3 H2O -> CaCO3 + 2 NH3 . How much CaCO3 is produced if 47.5 moles NH3 are produced?
A particular compound contains, by mass, 41.4g carbon, 3.47g hydrogen, and 55.1g oxygen a 0.100 mol sample of this compound weights 11.60 g.
If 30.0 L of oxygen gas is cooled from 473 K to 274 K at constant pressure, what is the new volume of oxygen
4.41-g sample of a salt dissolves in 9.10 g of water to give a saturated solution at 25°C. What is the solubility (in g salt/100 g of H2O) of the salt.
Calculate OH- of each aqueous solution using the following H3o+ A baking soda 1.0 X 10-8M B orange juice 2.0 X 10-4
How many milliliters of a 533 mL solution of 1.3 M K3PO4 must be used to make 316 mL of a solution that has 0.79 moles of K+?
What is the total sample size (in grams) for a sample of sodium sulfate which contains 3.63 g of oxygen
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