Question

Find the hidden X element

Answer 1

Given that there is an unknown element: \(X\)
The equation states:
\[2XI_3+3CL_2\longrightarrow2XCL_3+3I_2\]
If \(XI_3\) Has a mass of 0.5g, and that gives 0.236g of \(XCL_3\), find the atomic weight of \(X\), and identify the element

Answer 2

@Somy

Answer 3

mole = mass/ molecular mass
mass = mole x molecular mass
mole ratio is same so i believe we can ignore mole
thus we'll focus on mass and molecular mass
0.5g of XI3 - from here we know molecular mass of I only and its 127x3 = 381+ X
so
0.5g = 381+X
0.236g of XCl3 = 35.5x3 = 106.5 + X
so

0.5 = 381+X
0.236 = 106.5 + X
0.5 x (106.5 + X) = 0.236 x (381 + X)
you can do the math and find the X