Answer:
B. 120 cg/ ml
Explanation:
If a liquid has a density of 1,200 g/L, what is its density in cg/mL?
To fin this, we will simply use the idea of proportion. But first we need to know the number of gram per liter in 1 centigram per milliliter. Thus;
Let x = density of liquid in cg/ ml
1 cg/ml = 10 g/l
x = 1,200 g/l
cross- multiply
10x = 1,200
Divide both-side of the equation by 10 to get the value of x
10x/10 = 1,200/10
(At the left-hand side of the equation, 10 on the numerator will cancel-out 10 on the denomination and we will be left with just x, while on the right-hand side of the equation, 1200 will be divided by 1200)
x = 1,200/10
x =120 cg/ml
Therefore, the density of the liquid is 120 cg/ml
