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A buffer is made by dissolving HC2H3O2 and NaC2H3O2 in water.
a.) Write an equation that shows how this buffer neutralizes added acid.
b) Write an equation that shows how this buffer neutralizes added base.
Isooctane is a standard for gasoline octane rating. A sample weighing .5992 g was found to contain .5040 g of carbon and .09515 g of hydrogen. Its molecular mass is 114. Write the empirical and molecular formulas of issooctane(arranging the symbol..
masking of cu2 can be achieved by reduction to cu.nbsp a 25.00 ml aliquot of a solution containing cu2 and ni2 was
An isotonic solution is described as 0.92% NaCl (g/mL). Would this also be the required concentration for isotonic solutions of other salts, such as KCl, MgCl2,
If one method of favoring the formation of an ester is to add excess acetic acid. Propose another method involving the right-hand side of the equation that will favor the formation of the ester.
Why is it particularly important to wash the cupric hydroxide intermediate in the synthesis of cupric acetate (verdigris)? Be specific about what is being removed and why it matters.
At what temperature would CO2 molecules have an rms speed equal to that of H2 molecules at 25 degrees C?
The half-life of 137Ce is 30 years. How many grams of 137Ce must be produced now to have a sample containing 32 g of 137Ce 190 years from now?Answer in units of g
Why is it important to the place the thermometer bulb at in the lower part of the Hickman still head. What will happen if you place it either a)too low or b)too high in the condenser
The reaction vessel feels cooler. b.The value of K becomes smaller. c.The equilibrium will shift to the left. d.The reaction vessel feels warmer.
A sample of clay was obtained from a point below the groundwater table. A moisture content test on this sample produced the following data
A 12-oz (355-mL) Pepsi contains 38.9 mg caffeine (molar mass ?? 194.2 g/mol). Assume that the Pepsi, mainly water, has a density of 1.01 g/mL.
A solution is made by dissolving trichloromethane and acetone. The pure vapor pressure of trichloromethane is 221.8 Torr. At the mole fractions of Xacetone = 0.713 and yacetone = 0.818 at 28 ° C and the total vapor pressure is 220.5 Torr.
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