Question

Suppose you have 2.50 l of a substance with density of 7.00 g/ml. convert the volume from liters to milliliters, then determine the mass of the sample in grams and convert to kilograms. also show the unit analysis by dragging components into the unit-factor slots below. the question marks (

Answer 1

2.50Lx(1000ml/1L)x(7.00g/mL)x(1kg/1000g)=17.5g

Answer 2

Answer : The mass of substance in kilograms is 17.5 kg.

Explanation :

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

Formula used for density :

$Density=\frac{Mass}{Volume}$

Given :

Volume = 2.50 L

Density of substance = 7.00 g/mL

First we have to convert the volume from liter to milliliters.

Conversion used :

1 L = 1000 mL

As, $1L=1000mL$

So, $2.50L=\frac{2.50L}{1L}\times 1000mL=2500mL$

Now we have to calculate the mass of substance.

$Mass=Density\times Volume$

$Mass=7.00g/mL\times 2500mL=17500g$

Now we have to convert mass from grams to kilograms.

Conversion used :

1 g = 0.001 kg

As, $1g=0.001kg$

So, $17500g=\frac{17500g}{1g}\times 0.001kg=17.5kg$

Thus, the mass of substance in kilograms is 17.5 kg.