Question

If an object has a density of 0.55 g/mL, what is its density in cg/L?
0.0055 cg/L
55 g/L
550 g/L
55,000 g/L

Answer 1

if              1 g is equal to 100 cg

then  0.55 g are equal to X cg

X = (0.55 × 100 ) / 1 = 55 cg

The density of the object is 55 cg/L.

Answer 2

Answer : The density in cg/L is, 55000 cg/L

Explanation :

Density : It is defined as the mass of a substance contained per unit volume.

The conversion used from gram to centigram is:

1 gram = 100 centigram

The conversion used from milliliter to liter is:

1 mL = 0.001 L

So,

1 g/mL = $\frac{100}{0.001}cg/L=100000cg/L$

As we are given the density 0.55 g/mL. Now we have to determine the density in cg/L.

As, 1 g/mL = 100000 cg/L

So, 0.55 g/mL = $\frac{0.55g/mL}{1g/mL}\times 100000cg/L=55000cg/L$

Therefore, the density in cg/L is, 55000 cg/L