herrerachristinar
herrerachristinar herrerachristinar
  • 24-03-2020
  • Chemistry
contestada

Question 2*
1 point
2. What is the gram-formula mass of Sc(OH)3
52 g/mol
78 g/mol
96 g/mol
O 89 g/mol

ASAP!

Respuesta :

Neetoo
Neetoo Neetoo
  • 31-03-2020

Answer:

Sc(OH)₃ = 96 g/mol

Explanation:

Gram formula mass:

Gram formula mass is the atomic mass of one mole of any substance.

It can be calculated by adding the mass of each atoms present in substance.

Sc(OH)₃:

Atomic mass of Sc = 45 amu

Atomic mas of O = 16 amu

There are three atoms of O = 16 ×3

Atomic mas of H = 1 amu

There are three atoms of H = 1 ×3

Gram formula mass of Sc(OH)₃:

Sc(OH)₃ = 45 ×1 + 16 ×3 + 1  ×3

Sc(OH)₃ = 96 g/mol

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