9 squares because if there are 18 triangles in it then you divide 18 by 2 and get 9
Answer:
32,27,42,47,52
Step-by-step explanation:
To calculate for mass, simply multiply molar weight (MW)
and number of mols. The molar weight (MW) is in units of mg / mmol. Therefore
the mass is:
mass = (158 mg / mmol) (0.25 mmol)
mass = 39.5 mg
Answer:
39.5