Question

What is the molar mass of Pb(Cr2O7)2

Answer 1

Answer:

The molar mass of Pb(Cr2O7)2 is 639.2 g/mol.

Answer 2

Answer:

639 g

Explanation:

Pb(Cr₂O₇)₂

Molar mass of each element:

Pb = 207

Cr = 52

O = 16

now solve:

207 + ( 52 * 2 + 16 * 7 ) * 2

207 + ( 216 ) * 2

207 + 432

639 g