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The graph above shows the titration curves of four monoprotic acids of varying strengths. All of the acids start out at 0.1 M concentration and 25.0 mL volume. Choose all of the correct statements about these titration curves from the choices below. The titration curve labelled "D" is generated by the strongest acid in the series. The weaker the acid the higher its pH value at the beginning of the titration. In the curves shown above all acids require the same amount of NaOH for neutralization. The stronger the acid the higher its pH value at the beginning of the titration. The pKb of the acid which generates curve "C" is about 10. The pKa values of acids "A" - "C" are their pH values at 0 mL of NaOH.
A 2.770 g sample of a compound containing only carbon, hydrogen, and oxygen burns in excess oxygen to produce 4.06 g of CO2 and 1.66 g of H2O. Calculate the mass (in g) of C in the sample.
calculate the area of the spill in cm squared and the diameter of the spill in cm. (Help: 32 oz = quart, 1 mL = 1 cm cubed; area of a circle A = pi x r squared)
reacting ammonia with carbon dioxide. the by product is water. 637.2g of ammonia are reacted with 787.3g of carbon dioxide. which of the two reactant is a limiting reactant?
How many ml of 2.00M H2SO4 are required to neutralize 50.0mL of 1.00M KOH?
Acid strength decreases in the series HI > HSO4- > HF > HCN. Which of these anions is the weakest base?
A compound contains 44.26% carbon atoms, ,3.69% hydrogen atoms, and 7.79% fluorine atoms by mass. Each molecule of this compound contains one fluorine atom. What is the total number of carbon, hydrogen, and fluorine atoms in one molecule of this c..
An acid, HA, has the following thermodynamic values for its dissociation in water at 27 degrees celcius: ΔH=-8.0 kJ mol-1; ΔS=-70 J K -1 mol -1
An additional 31.4 g of water was added to the reaction vessel, and a new state of equilibrium was achieved. What are the equilibrium partial pressures of each gas in the mixture
A lump of copper is heated with 225 J of energy. Its temperature rises by 11.5 oC. How many grams does this lump weigh
Determine the molar concentration of Na+ in a solution in which 6.315+/-0.004g of Na3PO4 has been added to 1000.0+/-0.4mL
The fragment is dissolved in 50.00 mL of (H_{2}SO_{4}) solution is then treated with 2 g of Kl and 50.00 mL of the potassium iodate solution (1L of 0.01000M solution requires 2.14g of potassium iodate).
"A mixture of CH4 and H2O is passed over a nickel catalyst at 100 degrees K. The emerging gas is collected in a 5.00-L flask is found to contain 8.62g of CO, 2.60 g of h2, 43.0 g of CH4, and 48.4 g of H2O.
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