The Henry's Law constant for CO2 is 3.4 x 10-2 M/atm
at 25°C. What pressure of carbon dioxide is needed to maintain a
CO2 concentration of 0.10 M in a can of soda?
The pressure of co2 is 3.0 atm. what is the
concentration of carbonic acid in club soda?
Co2(aq)+H2O(l)<=> H2CO3(aq)
It needs to use Henry's Law.
What is the PH of club soda? assume that the carbonic acid
dissociates to whatever extent it should.
An initial concentration of CO2 equal to 1.00 M is in
a flask at 25°. What is the equilibrium concentration of
CO2? The Kc is 3.2 ´ 10-3 at 25°C.
SnO2(s) + 2 CO(g) D Sn(s) + 2 CO2(g) Hrxn =
–36 kJ
What is the pH at 25 ∘C of water saturated with CO2 at a partial
pressure of 1.20 atm ? The Henry's law constant for CO2 at 25 ∘C is
3.1×10−2mol/L-atm. The CO2 is an acidic oxide, reacting with H2O to
form H2CO3.
A sample of silicon is doped with donors to a concentration of
10^20 donors m−3 . Assume all the donors are ionised and that the
sample is initially at 300K. (a) What is the concentration of holes
in this sample of silicon? (b) Calculate the position of the Fermi
level in this doped sample of silicon. (c) At what temperature will
the intrinsic electron concentration become larger than the donor
electron concentration?
At 25°C, what is the hydronium ion concentration in:
a. 0.350 M sodium chloroacetate (Ka=1.36e-3)?
b. 4.5e-3 aniline hydrochloride (Kb=3.98e-10)?
c. 0.520 M HIO3 (Ka=1.7e-1)?
A) The reactant concentration in a zero-order reaction was
9.00×10−2 M after 155 s and 2.00×10−2 M after 365 s . What is the
rate constant for this reaction? B) What was the initial reactant
concentration for the reaction described in Part A? C) The reactant
concentration in a first-order reaction was 9.80×10−2 M after 15.0
s and 6.30×10−3 M after 100 s . What is the rate constant for this
reaction? D) The reactant concentration in a second-order reaction...