[" Potassium chromate is isomorphous to potassium sulphate "(K,sO_(4))" and is found to contain "26.78%" chromium.Calculate "],[" the atomic mass of chromium "(K=39.10)]

Ptassium chromate is isomorphous to potassium sulphate (K_(2)SO_(4)) and it is found to have 26.78% Cr . Calculate the at. Wt. of Cr if at. W.t of potassium is 39.10 .

Potassium selenate is isomorphous with potassium sulphate and contains 50.0% of Se . The atomic weight of Se is a. 142 , b. 71 , c. 47.33 , d. 284

Potassium selenate is isomorphous with potassium sulphate and contains 50.0% of Se . The atomic weight of Se is a. 142 , b. 71 , c. 47.33 , d. 284

Potassium selenate is isomorphous with potassium sulphate and contains 50.0% of Se . The atomic weight of Se is a. 142 , b. 71 , c. 47.33 , d. 284

An element (X) reacts with KOH to form a salt. The salt is isomorphous with potassium permanganate (KMnO_(4)) . The oxide of the element X contains 61.2% of oxyge. Determine the formula of the oxide and atomic mass of X.