Question

C) Calculate the percentage composition of
potassium chlor ate KCLO3 ​

Answer 1

Correct Question:-

Calculate the percentage of potassium in Potassium Chlorate(KClO3)

Solution:-

Molecular Mass of Potassium Chlorate:-

$\\ \sf{:}\longrightarrow 39u+35u+3(16u)$

$\\ \sf{:}\longrightarrow 74u+48u$

$\\ \sf{:}\longrightarrow 122u$

• Atomic mass of K=39u

We know that

☆Mass % of an Element =Mass of that element in one mole of compound/Molecular mass of the Compound×100

$\\ \sf{:}\longrightarrow Mass\% \:of\:K=\dfrac{39}{122}\times 100$

$\\ \sf{:}\longrightarrow \dfrac{3900}{122}$

$\\ \sf{:}\longrightarrow\boxed{\bf{ Mass\%of\:Potassium=31.9\%}}$