Write equation to represent dissociation of sodium sulfate
Write an equation to represent the dissociation of Na2SO4 into ions in an aqueous solution. 5.3 grams of Na2SO4 are dissolved and diluted up to 350 ml. What is the final concentration of Na in moles/liter?
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A mixture of ideal gases having a total mass of 16 g is placed in a 13 L vessel at 270.0 K. The equilibrium pressure is measured to be 2.5 bar. Calculate the average molar mass of the gas mixture.
The equilibrium pressure of H2 over solid uranium and uranium hydride, UH3, at 500 K is 139 Pa. Calculate the standard Gibbs energy of formation of UH3(s) at 500 K.
A lake has a pH of 8 and the total molar concentration of nitrogen species (NH3 and NH4+) is 7.1×10-4 mol/L. what is the percentage of aqueous NH3 in the lake
or a certain reaction, kc=2.2*10^_4 and kf=0.284 M^-2 *s^-1. Calculate the value of the reverse rate constant, kf, given that the reverse reaction is of the same molecularity as the forward reaction.
If 5.20 mL of 0.1000 M NaOH solution is needed to just neutralize excess acid after 20.00 mL of 0.1000 M HCl was added to 1.00 g of an antacid, how many moles of acid can the antacid counteract per gram?
When the reaction 2 H2S g ~ 2H2 + S2 is carried out at 1065 degrees celcius, Kp = 0.012. Starting with pure H2S at 1065degrees, what must the initial pressure of H2S be if the equilbrated mixture at this temperature is to contain 0.250 atm of H2 (
In the emission spectrum of helium, there are strong lines at wavelengths of 447.1 nm, 501.6 nm, and 587.6 nm. Using the Balmer-Rydberg equation, determine the values of nf for each emission.
Calculate the change in Gm for ice at -10C, with density 917kg/m^3 when the pressure is increased from 1.0 bar to 2.0 bar. Self test 3.12
The acid catalyzed dehydration of 4-methycyclohexanol to 4-methycyclohexene is a reversible reaction that can be shifted to the alkene product according to le chaterlier's principle. Briefly explain how distillation brought about this shift in equ
Construct the molecular diagram for the system of a delocalized 1,3,5,7-cyclooctatetraene. What does this predict about this system. Is there a more stable arrangement for the bonds
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