Han purple, a synthetic inorganic pigment developed in China in ancient times, has the chemical formula BaCuSi₂O₆.What is its percent by mass silicon?

Question

Quizplus · Accepted Answer

The molar mass of BaCuSi₂O₆ is calculated by adding the atomic masses of Ba (137.33), Cu (63.55), Si (28.09 x 2), and O (16.00 x 6). The percent by mass of silicon is then calculated as (2 x 28.09) / total molar mass x 100%, which is approximately 15.9%.

Han Purple, a Synthetic Inorganic Pigment Developed in China in Ancient