Question #1830f

2 Answers
Feb 3, 2018

#73g#

Explanation:

The formula for density, where density is #rho#, is #rho=m/V#.

#m# is the mass, and #V# the volume.

The formula can be rearranged as: #m=rhoV#.

So for liquid A:

#m=rhoV#

#m=1.44*25#

#m=36g#

For liqiud B:

#m=rhoV#

#m=1.48*25#

#m=37g#

We have #36g# of one liquid and #37g# of the other.

Totally, we have #36+37=73g# of liquid.

Feb 3, 2018

#=73g#

Explanation:

  1. This can be solved using the density formula; i.e.,

    #m=rhoxxV#
    where:

    #m="mass expressed in g"#
    #rho="density expressed in g/ml"#
    #V="volume expressed in mL"#

  2. Assuming that the liquids are miscible, the mass of the liquids in the flask is computed as follows:

    #m_t=mLiquid_A+mLiquid_B#

#m_t=((rho_A)(V_A)+(rho_B)(V_B))#

#m_t=((1.44g)/cancel(ml)xx25cancel(ml))+((1.48g)/cancel(ml)xx25cancel(ml))#

#m_t=36g+37g#

#m_t=73g#