If an object has a density of 0.35g/ml what is that density in cg/l

Answer-

Solution:- It is a unit conversion problem where grams need to be converted to centigrams and mL needs to be converted to liters.

1 g = 100 cg

and 1000 mL = 1 L

Let's use these unit conversion factors and make the set up using dimensional analysis as:

=

=

The new density of an object is .

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.