Diffusion ________.
1 answer:
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Taking into account the definition of molarity, the concentration of Na₃PO₄ in solution is 0.192.
Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.
The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:
Molarity is expressed in units .
Being the molar mass of Na₃PO₄ 163.94 g/mole, that is, the amount of mass that a substance contains in one mole, the amount of moles that contains 23.6 g sample of Na₃PO₄ is calculated as:
Then you know:
- number of moles= 0.144 moles
- volume= 750 mL= 0.750 L (being 1000 mL= 1 L)
Replacing in the definition of molarity:
Solving:
Molarity= 0.192
Finally, the concentration of Na₃PO₄ in solution is 0.192.
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molarity:
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Answer:
The concentration of CO is 4.33*10⁻³
Explanation:
A reversible chemical reaction, as in this case, occurs in both directions: reagents transforming into products (direct reaction) and products transforming back into reagents (reverse reaction).
Chemical Equilibrium is the state in which the direct and indirect reaction have the same reaction rate and is defined by a chemical constant Kc.
Being:
aA + bB ⇔ cC + dD
where A, B, C and D represent the chemical species involved and a, b, c and d their respective stoichiometric coefficients, constant Kc is defined as:
Kc=
In the case of the reaction
2 H₂(g) + CO(g) ⇌ CH₃OH(g)
the equilibrium constant Kc is:
You know:
- Kc=35
- [CH₃OH] =
- [H₂]=
- [CO]=?
Replacing:
Solving you get:
[CO]=4.33*10⁻³
<u><em>The concentration of CO is 4.33*10⁻³</em></u><u><em /></u>