If your talking about mole. p
1 mole of water weighs 18 g
Therefore 0.5 mole of water weighs 9 g
According to Avagadro,
1 mol = 6.023 **10^23
atoms
So,
0.5 mol = 3.0115 **10^23
molecules of water
Each water molecule contains 2 hydrogen atoms .
Therefore
2** 3.00115**10^23
atoms of hydrogen are present in 9g of water
Answer:
The answer is
6.02⋅1023
Explanation:
The pKa value of acetic acid is determined experimentally by plotting pH titration curve.
The hydrogen ion, H+ concentration can be determined by performing a pH titration of a weak acid with a strong base like NaOH etc.
Starting from the dissociation equation for the acid,
HA(aq) + OH-(aq) --> H3O+(aq) + A−(aq)
we obtain for the point of half equivalence (where half of the acid has reacted with the base):
[A−] = [HA].
From the equilibrium equation
it therefore follows that
pKa = pH.
Answer:
Answer: approximately 60g of c6H12O6
Explanation:
We have the balanced equation (without state symbols):
6H2O+6CO2→C6H12O6+6O2
So, we would need six moles of carbon dioxide to fully produce one mole of glucose.
Here, we got
88g of carbon dioxide, and we need to convert it into moles.
Carbon dioxide has a molar mass of
44g/mol
. So here, there exist
Consider the following equilibrium:
4NH₃ (g) + 3O₂ (g) ⇄ 2N₂ (g) + 6H₂O (g) + 1531 kJ
The given statement is True, because
According to Le Ch's Principle:
Systems that have attained the state of chemical equilibrium will tend to maintain their equilibrium state.
External factors such as the addition of products and reactants result in the disruption of the equilibrium state.
we expect the system to shift to the direction that offsets the change in concentration.
This results in the state of chemical equilibrium to be reestablished.
Hence, The statement is true,
- The addition of more ammonia (a reactant) would offset the state of equilibrium.
- To restore chemical equilibrium, the system must consume the excess reactants to form more products.
- A shift to favor the products side occurs.
To learn more about equilibrium here
brainly.com/question/3920294
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