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A beaker with 115 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 5.70 mL of a 0.480 M HCl solution to the beaker. How much will the pH change? The pKa of acetic acid is 4.760.
cobalt-60 which undergoes beta decay has a half life of 5.26 years.a. how many beta particles are emitted in 160 s by a
What would be the partial pressure of F2 is the balloon is under 3atm of pressure? e) Pretend that the HCl of this reaction is used in the neutralization of 45mL of a solution of Ga(OH) 3. What was the molarity of the Ga(OH)3 solution
Calculate the boiling point of a solution containing 50.0 g of KCl and 550.0 g of water. (kb for water is 0.51C/m).
an inflated balloon has a volume of 0.55 l at sea level 1 atm and is allowed to rise to a height of 6.6 km where the
1.using a sample of 21.2 ml of a weak monoprotic acid hx requires 50.0 ml of 0.045 m sodium hydroxide to reach to the
Calculate the temperature in (K) where the specific heat of carbon dioxide is 0.93 kJ/kg*K if the temperature dependence of the specific heat is given by
if you were to use IR spectroscopy how would you differentiate between acetone, water, and diethyl ether? (include values and relate them to functional groups)
Which of the following processes are spontaneous. (You may select more than one answer.) a. melting of ice at -10°C and 1 atm pressure b. evaporation of water at 30°C when the relative humidity is less than 100 percent c. water + NaCl(s) salt solu..
Liquids "flow" quickly as measured by the speed at which a small amount of liquid will spread itself out to form a puddle. What does this behavior imply about the speeds at which the individual liquid particles are moving relative to each other?
Explain why the balloon would float when heated. Make sure to discuss which factors change and which remain constant, and why this matters. Be complete.
At 2000 degree C the equilibruim constant for the reaction 2NO-> N2+O2 is kc=2.4x10^3. the initial concentration of NO is 0.190 M. What is the equilibruim concentration of N2 and O2
2SO2(g) + O2(g) 2SO3(g) Suppose the volume of this system is compressed to one-half its initial volume and then equilibrium is reestablished.
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