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Question- The pKa of one of the hydrogen's that is attached to one of the nitrogen's of the purine guanine is 9.7. If guanine is in a solution that has a pH of 12.7, then how many carbons, nitrogen's, oxygen's, and hydrogen's does guanine predominantly have at this pH?
Please explicate as simply and as clearly as you can thank in advance for assistance.
The atomic weight of Sm is 150.36 and that of Nd is 144.24. The isotopic percentage abundance of 147Sm is 15.0 and that of 144Nd is 23.954.
An empty beaker has a mass of 42.889 g. 10.00 mL of NaCl solution are placed in the beaker. The mass of the beaker and solutionis 54.129 g.
Calculate the amount of heat liberated (in kJ) from 383 g of mercury when it cools from 61.0°C to 11.0°C.
The pressure in the gas container is 783 mm Hg and atmospheric pressure is 744 mm. How high will the level rise in the manometer if the densities of Hg and mineral oil are 13.6 g/mL and 0.822 g/mL respectively?
the Ideal Gas Law to calculate the pressure of the vapor at 88 °C; at 66 °C. b) Will condensation occur at 88 °C; 66 °C? Explain. c) On the basis of your answers in a) and b), predict the pressure exerted by the water vapor in the flask at 88 °C; ..
the half life for the first-order decomposition of sulfuryl chloride at 320ordmc is 8.75 h.so2cl2 g rarr so2 g cl2
A piece of metal of mass 18 g at 117?C is placed in a calorimeter containing 48.2 g of water at 21?C. The final temperature of the mixture is 85.4?C. What is the specific heat capacity of the metal? Assume that there is no energy lost to the surro..
Question- Automobiles and trucks pollute the air with NO. At 2000 degrees C, Kc for the reaction is 4.10 x 10^ -4, and delta H = 180.6 kj. What is the value of Kc at 67 degrees C
the entropy chage for vaporization of hi at its boiling point is 89.0 j.k-1.mol-1. if the heat of vaporization of hi is
What is the Normality of a 0.25M phosphoric acid solution. : 0.25N 0.50N 0.75N 3.0N
What is the pH of a solution made by mixing 25.00mL of 0.200M CH3COOH with 10.00mL of 0.200M NaOH? Ka of acetic acid is 1.8 x 10^-5.
A brewery has a horizontal conveyor belt to transfer malted barley from a storage silo to the mash tun (the large vessel where the malted barley is steeped in hot water).
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