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Write reaction equations to explain how acetic acid-acetate buffer reacts with an acid and reacts with a base.
Say, for example, that you had prepared a Buffer C, in which you mixed 8.203 g of sodium acetate, NaC2H3O2, with 100.0 mL of 1.0 M acetic acid.
a. What would be the initial pH of Buffer C?
b. If you add 5.0 mL of 0.5 M NaOH solution to 20.0 mL each of Buffer B and Buffer C, which buffer's pH would change less? Explain.
Hydrocarbon mixtures are used as fuels. What mass of CO2 gas is produced by the combustion of 189.2 g of a mixture that is 57.6 % CH4 and 42.4% C3H8 by mass
A compound is found to contain 64.80 % carbon, 13.62 % hydrogen, and 21.58 % oxygen by weight. What is the empirical formula for this compound
if the solubility of agno3 at 40oc is 211 g per 100 g of water what mass of this solute can be dissolved in 350 g of
If four moles of sodium sulfate are dissolved in water how many moles of sodium ions would be in solution?
aluminum will react with bromine to form aluminum bromide al2br6. what mass of bromine g is needed to form 1.03 mol of
What would happen to the % Transmittance value if the wavelegth is changed from 447nm to 520 nm
In non-ionic compounds, the two primary sources of intermolecular forces are permanent dipoles and temporary dipoles. Explain what causes these types of dipoles to form.
CaCl2 is used to lower the freezing point of water on streets and sidewalks. Assuming it forms an ideal ionic solution, how many grams of CaCl2 must be added to 1.50 kg of water to lower the freezing point of the mixture to -2.00* C? Kf for water ..
Compare photons of X-ray and microwave radiation. Which has A) the longer wavelength, B) the greater frequency and C) the greater energy
Calculate q,w,delta u,delta h if 1.65mol of an ideal gas with cv,m= 3r/2 undergoes a reversible adiabatic expansion from an initial volume Vi= 7.75 m3 to a final volume Vf= 20.5 m3. The initial temperature is 300 K.
A weather balloon has a volume of 750 L when filled with helium at 8 degrees C at a pressure of 380 torr. What is the new volume of the balloon where the pressure is 0.20 atm nd the temperature is -45 degrees C
A 1.5618-g sample containing sulfate ion was treated with barium chloride reagent, and 0.2321 g of barium sulfate was isolated. Calculate the percentage of sulfate ion in the sample.
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