An Arrhenius base<span> is a substance that, when dissolved in an aqueous solution, increases the concentration of hydroxide, or OH-, ions in the solution. I believe the correct answer from the choices listed above is option A. The reaction that </span>displays an example of an Arrhenius base would be <span>NaOH(s) --> Na+(aq) + OH–(aq). Hope this answers the question.</span>
It’s A: C2H2N (basically you count how many C, H and N there are)
Answer:
The value of for this reaction at 1200 K is 4.066.
Explanation:
Partial pressure of water vapor at equilibrium =
Partial pressure of hydrogen gas at equilibrium =
Total pressure of the system at equilibrium P = 36.3 Torr
Applying Dalton's law of partial pressure to determine the partial pressure of hydrogen gas at equilibrium:
The expression of is given by:
The value of for this reaction at 1200 K is 4.066.
Answer:
Lets Write Down the Given Initial Conditions.
In Order to Solve for the Unknown:
we must use the Ideal Gas Law to Solve for the Second Unknown pressure:
Then Rearrange this equation in a form where P2 can be solved from:
Then Insert the Values from above to solve:
The Answer is : 1830 mmHg considering sig figs
Answer:
For ²⁰⁸Pb²⁺ cation, the sum of the number of neutrons and electrons = 206
Explanation:
Lead, chemical symbol Pb, is a chemical element which belongs to the group 14 of the periodic table. The atomic number of lead is 82 and it is a member of the p-block.
The isotope of lead with the mass number 208, has 126 neutrons.
Since, atomic number = number of protons = number of electrons for neutral atom
Therefore, for ²⁰⁸Pb: number of electrons= 82
So, <u>for ²⁰⁸Pb²⁺ cation: number of electrons</u>= 82 - 2 = 80
<u>Therefore, for ²⁰⁸Pb²⁺ cation, the sum of the number of neutrons and electrons = number of electrons + number of neutrons = 80 electrons + 126 neutrons = 206.</u>