Answer to Question #120058 in General Chemistry for hunter

General Chemistry

Question #120058

what is the formula mass for H2Se. (The 2 is subscript)

Expert's answer

Formula is H₂Se

Formula Mass Of H ₂Se = 1×2 + 1×79.

= 81 amu/molecule.

Atomic mass of H is 1 amu / atom.

Atomic mass of Se is 79 amu /atom.

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