Respuesta :
Answer: 306 grams are there in 2.50 moles of potassium chlorate
Explanation
According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.
To calculate the number of moles, we use the equation:
[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}[/tex]
given mass of potassium chlorate = ?
Molar mass of potassium chlorate = 122.55 g/mol
Putting in the values we get:
[tex]2.50=\frac{xg}{122.55g/mol}[/tex]
[tex]x=2.50mol\times 122.55g/mol=306g[/tex]
306 grams are there in 2.50 moles of potassium chlorate
The mass of Potassium chlorate is 306.25 grams.
Number of Moles:
It is defined as the ration of given mass over molar mass.
[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}[/tex]
Given:
Number of moles = 2.50 moles
Molar mass of Potassium chlorate = 122.5 g/mol
To find:
Mass of Potassium chlorate=?
On substituting the values in the above formula:
[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}\\\\\text{Given mass}= \text{Number of moles}* \text{Molar mass}\\\\\text{Given mass}= 2.50*122.5\\\\\text{Given mass}=306.25g[/tex]
Thus, the mass of Potassium chlorate is 306.25 grams.
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