Question

The formula for density is given by p=m/v where p is density, M is mass and V is volume. If a substance has a mass of 27.82 grams and a volume of 3.6 ml, what is the most accurate density of the substance in g/ml
7.7
7.7278
7.73
0.1

Answer 1

p = [27.82] ÷ [3.6] 
p = 7.727·
p = 7.728 (3dp) 

The answer is B)

Answer 2

Answer:

Option 2nd is correct

p = 7.7278 g/ml

Step-by-step explanation:

Formula for the density is given by:

$p = \frac{m}{v}$          .....[1]

where,

p is the density

m is the mass

v is the volume

As per the statement:

If a substance has a mass of 27.82 grams and a volume of 3.6 ml

⇒$m = 27.82 g$ and $v = 3.6 ml$

Substitute in [1] we get;

$p = \frac{27.82}{3.6} = 7.72777778 g/ml$

Therefore, the most accurate  density of the substance in g/ml is, 7.7278