Hydrogen gas is collected over water in an inverted buret. If the atmospheric pressure is 745 mm Hg, the vapor pressure of water
1 answer:
Answer:
Explanation:
Hello there!
In this case, according to the given data, it is possible to infer that the gas mixture lies on the 15.0 cm-high column of water, so that the total pressure or atmospheric pressure is given by:
Thus, since the atmospheric pressure is 745 mmHg and the vapor pressure of water is 18 mmHg, the pressure of hydrogen turns out to be:
Best regards!
You might be interested in
Answer: The concentrations of at equilibrium is 0.023 M
Explanation:
Moles of =
Volume of solution = 1 L
Initial concentration of =
The given balanced equilibrium reaction is,
Initial conc. 0.14 M 0 M 0M
At eqm. conc. (0.14-x) M (x) M (x) M
The expression for equilibrium constant for this reaction will be,
Now put all the given values in this expression, we get :
By solving the term 'x', we get :
x = 0.023 M
Thus, the concentrations of at equilibrium is 0.023 M
Answer:
- The<em> diagram</em> with the five<em> labels</em> of the parts is in the image attached. Please, see the image.
Explanation:
<u>1) General explanation:</u> a <em>potential chemical energy diagram</em> is used to show how the <em>reactants</em> gain energy until they reach the <em>activation energy</em>, form the <em>activated complex</em>, and release part of the energy to form the <em>products</em>.
The difference between the chemical potential energy of the products and the reactants is the <em>enthalpy of the reaction</em>:
- ΔH rxn = ΔH products - ΔH reactants.
The labels that correspond to each part of the diagram are explained next.
<em><u>2) Reactants:</u></em>
This is the substances at the start, so they appear on the left bottom side of the diagram.
<em><u>3) Activation energy:</u></em>
It is the energy that the reactants must reach (the highest point) in order to the reaction occurs.
<u><em>4) Activated complex:</em></u>
This is the intermediate state and of highest energy. The reactants have formed a complex at mid way between the reactants and the products.
<u><em>5) Products:</em></u>
These are the substances formed when the reaction is completed. They are lower in energy than the activated complex. They can be either higher or lower in energy than the reactants. The products are shown to the right of the diagram.
<em><u>6) Enthalpy of the reaction:</u></em>
The enthalpy of the reaction is the difference in energy of the products and the reactants. In this case, since, the products are higher in energy, it means that the reaction absorbed energy and it is an endothermic reaction.
