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Explain why is longitudinal diffusion a more serious problem in gas chromatography than in liquid chromatography?
A buffer solution with a pH reading a 8.50 was prepared by mixing 0.25 mole acid (HA) and 0.05 mile NaOH in 500.0mL DI water. How much more gram of NaOH you should add to this solution in order to have the highest buffer capacity of this solution
Calculate (approximate) the pH of a 0.30M solution of ascorbic acid. Must use an ICE table (Initial Concentration, Change in Concentration, Equilibrium Concentration) and the quadratic formula unless the "x is small" approximation can be used.
When 0.500 mol of N2O4 gas is placed in a 2.50 L reaction vessel and heated to a set temperature, 65.3% of the N2O4 decomposes. Calculate Kc for the decomposition rxn.
A 50.00 ml sample of water was treated as above and the I2 titrated with 0.01136 M Na2S2O3, of which 8.11 ml were required to reach the end point. Determine the concentration of the dissolved O2 in M (moles/L) and ppm (mg/L).
The pH of a solution containing equal concentrations of a weak acid and its salt is found to be 5.1. What is the Ka for this acid
How many liters of chlorine gas, measured at STP, would be produced by the electrolysis of molten sodium chloride using a current
What is the sum of the coefficients in the balanced equation that represents the complete combustion of the relatively new gasoline additive "MTBE," for which the molecular formula is C5H12O?
Suppose that a very concentrated solution of potassium iodate is added to a saturated solution of cupric iodate. What will happen
The following reaction is a single-step, bimolecular reaction: When the concentrations of CH3Br and NaOH are both 0.115 M, the rate of the reaction is 0.0010 M/s.
A sample of oxygen gas has a volume of 150 mL when its pressure is 0.947 atm. What will the volume of the gas be at a pressure if 0.987 atm if the temputure remains constant
how many liters of oxygen will be produced if 162 grams of aluminum chlorate is decomposed
What weight of sodium acetate, NaCO2CH3, must be added to 500.0 mL of 0.500 M acetic acid HCO2CH3 to produce a buffer solution
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