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Calculate the volume occupied by 35.2 g of methane gas (CH4) at 25°C and 1.0 atm. (R = 0.08206 L*atm/K*mol)
How many milliliters of 3.4 M NH4Cl must be added to 250 mL of 0.23 M NH3 to obtain a buffer solution having pH=9.40
The enthalpy of vaporization of water at 373 K and 1 bar is 40.7 kJ/mol and the molar heat capacities are 75.3 J/(mol K) for liquid and 33.6 J/(mol K) for gaseous water. Find the enthalpy of vaporization of water at 273 K and 1 bar.
The baloon rises to an altitude of 20,000 m, where atmospheric pressure is 67 mmHg and the temp is 210 K. What is the volume of the balloon at 20,000 m
The two methods used to analyze the coordination compound of nickel (II) Ion, Ammonia, and Chloride ion were a. Percipitation and titration b. Evaporation and condensation
compare the stabilities of each of the four conjugate bases that would be formed from the doprotonation of the four
Which of the following is the ground state electron configuration for germanium, Ge, by the Aufbau and Pauli Exclusion principles?
The molar mass for each reactant is shown below the reactant, and the mass of each reactant for this problem is given above. Which substance is the limiting reactant?
Calculate ph of solution formed by mixing 250 ml of .15 M NH4Cl with 100 ml of .2 M NH3. Kb for NH3 at 25C is 1.8x10^-5
Chlorine reacts with potassium bromide to produce potassium chloride and bromine
diamond powder (C) and BaCO3, separates the mixtures and recovers 1.75g sugar, 0.86g diamond powder and 2.29g BaCO3(s). Calculate the percent recovery and percent composition if the initial mixture they started with weighted 5.08g
Why is it impractical to measure cell potentials of solutions in which the Fe(II)/Fe(III) molality ratio is too small (or large)
Get ready a buffer solution from 10.0mL of 0.100 M MOPS 3-morpholinopropane-1-sulfonic acid and 10.0mL of 0.082 M NaOH. Next, you add 1.00mL of 8.97 Ã10-6 M lidocaine to this mixture
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