Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
what is the perfect of mass when the molecules is 1.74e14*?

### Inputs:
table_name: table, columns: ['Molecule', 'Percent of Mass', 'Mol.Weight (daltons)', 'Molecules', 'Percent of Molecules']

### Response:
SELECT Percent of Mass FROM table WHERE Molecules = 1.74e14*