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Write the formulas of the conjugate base for each of the following acids: A. HCO3- B. CH3--NH3+ C. HPO4^2- D. HNO4- E. HClO2
Lysine is an amino acid that is an essential part of nutrition but which is not synthesized by the human body.
calculate the escape velocity the minimum initial velocity that will take an object to infinity from the surface of a
Calculate the partial pressure in atmospheres of O2 in the air outside an airplane cruising at an altitude of 10 km, where the atmospheric pressure is 190.0 mmHg
When 1.000 mol of pcl5 is introduced into a 5.000l container at 500k 78.50% of the pcl5 dissociates to give an equilibrium mixture of pcl5, pcl3, and cl2
What is the pH at the point during a titration when 30 mL of 0.200 M HCl has been added to 31 mL of 0.0500 M NH3 solution? HCl is strong acid, Kb = 1.8 × 10-5 for NH3.Answer in units of pH.
Assume the total heat capacity of the air C air=30 J/K. Describe what's the likely ice will ne after the system reaches equilibrium. b) Estimate theliekly final temperature after reaching equilibrium
half reaction of k2cr2o7 7h2so4 6feso4 k2so4 cr2so43 7h20what is the half reaction showing the reduction of
A certain second-order reaction has a rate constant of 1.10×10-3 at 27 C and an initial half-life of 226 . What is the concentration of the reactant after one half-life?
understanding the basics of thermal chemistry.1. the second law of thermodynamics indicates that a system.a. tends to
what is the mass number of an iron atom that has 28 neutrons? calculate the number of neutrons ofnbsp239pu. write the
From the same container under the same conditions--same temperature and initial pressure, it takes 40 s for 1.00 L of O2 gas to effuse. Calculate the molar mass (in grams/mol) of the unknown gas.
Calculate the Calorimeter Constant if 25 g of water at 53C was added to 25 g of water at 25C with a resulting temperature of 35C?
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