Rb- Rubidium
Cr2O7 - dichromate
Rubidium dichromate
The chemical formula for rubidium chromate is Rb2CrO4.
The molar mass of Rb2Cr2O7 (rubidium dichromate) can be calculated by adding the atomic masses of all its constituent elements: 2 atoms of rubidium (Rb), 2 atoms of chromium (Cr), and 7 atoms of oxygen (O). The molar mass comes out to be approximately 387.87 g/mol.