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Consider a scuba tank (12.0 L volume) initially at 1.00 atm that is subsequently filled to 200atm with oxygen (average M ~ 32.00 g/mol, Cp! = 29.355 j.mol^-1k^-1) behaving as an ideal gas. Assuming the tank is sitting in water at 298 K at an external pressure of 1.00 atm, filling the tank can be considered an isothermal and reversible process. (a) Calculate the molar change in the internal energy and enthalpy of the gas inside and outside the tank.Also, calculate the amount of work required to fill the tank and the amount of heat transferred to the surrounding water. (b) What is the mass of gas present in the tank once it is filled? (c) Assuming the tank is surrounded by 1.00 m3 of water and using the heat capacity and density (293 K value) for water found in the back of your textbook, calculate the temperature change of the water (Qp = CpΔT)
a 100-w lightbulb is placed in a cylinder equipped with a moveable piston. the lightbulb is turned on for 2.0times10-2
Question- You are creating a buffer using a 0.150 M formic acid (HCOOH) and a 0.120 M sodium formate (HCOONa). Part 1) Write the equation for the reaction
Calculate the partial pressure of each gas and the total pressure after the valve between the flasks is opened. P(He) in mmHg P(Ar) in mm Hg Ptotal in mm Hg
A solution of salicylate dianion is prepared by mixing 0.158 g of reagent grade acetylsalicylic acid in 5 mL of 1 M sodium hydroxide and heating the mixture until all of the solid dissolves.
Suppose we want a soln containing 150 micrograms of the protein at a concentration of .5 mg/ml. To do this we will first evaporate the liquid from enough of the protein soln to get 150 micrograms. How much coln do we need to start with. How much H..
Write the equations that represent the first and second ionization steps for selenic acid (H2SEO4) in water.
The mass to use in the expression for the vibrational frequency of a diatomic molecule is the effective mass μ = mAmB/(mA + mB), where mA and mB are the masses of the individual atoms.
An organic compound of molecular formula C10 H12 O2 reacts with both aqueous NaOH and aqueous NaHCO3. The compound reacts with Br2/FeBr3 to yield 2 products which can easily be separated from each other and each has molecular formula C10 H11 O2 Br..
61.5 mL of 0.11 M sodium hydroxide were required to completely neutralize 23.7 mL of sulfuric acid. Calculate the concentration of the sulfuric acid solution
Problem- Write the balanced equation for the ionization of the weak base pyridine, C5H5N, in water, H2O. Phases, such as (aq) or (l), are optional.
Problem- A 0.2277 g sample contained only NaCl and KBr. It was dissolved in water and titrated with a 0.04811 M solution of AgNO3. Complete titration of both halides was found to require 51.27mL of the AgNO3 solution. Calculate the weight percent ..
What is the mass in grams of O2 gas that was produced in the reaction as described above. What is the percent yield of O2 produced in the reaction
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