How many mols of hg3(po4)2 would be created by mixing 143.8 g of hg(OH) with excess H3PO4?

What is the importance of interlocking the fingers and rubbing while washing hands? the palms are the dirtiest parts of the hands. the spaces between the fingers get washed. the backs of the hands get washed. the fingernails are the dirtiest parts of the hands