Question #166d9

1 Answer
Sep 3, 2016

Answer:

#sf((a))#

#sf(463color(white)(x)g)#

#sf((b))#

#sf(3.7color(white)(x)L)#

Explanation:

(a)

Use the idea that:

Density = mass / volume.

In symbols:

#sf(d=m/v)#

The question is using both #sf(cm^3)# and #sf(ml)# which are the same.

So:

#sf(m=d.v=1.11xx417=462.87color(white)(x)g)#

#sf(m=463color(white)(x)g)# to 3sf.

(b)

Rearranging we get:

#sf(v=m/d)#

We now need to convert #sf(kg)# into #sf(g)# which we do by multiplying the mass by 1000 #sf(rArr)#

#sf(v=(4.1xx10^3)/(1.11)=3693.7color(white)(x)ml)#

#sf(v=3.7color(white)(x)L)#