post lab quiz - determining the density of a solid and liquid\nstarted: sep 16 at 2:49pm\nquiz…
post lab quiz - determining the density of a solid and liquid\nstarted: sep 16 at 2:49pm\nquiz instructions\n10 multiple choice questions (mcqs). duration 25 minutes. two attempts (highest quiz score will be graded)\nquestion 7\nhow can you determine the mass of a liquid without knowing its density?\nmeasure the liquid with calipers.\nadd the liquid to a known volume of another liquid and measure the change in volume.\ncentrifuge the liquid.\nprecisely fill a tared volumetric flask with liquid and record the mass.
Answer
Brief Explanations:
Calipers are for measuring length - not mass of liquid. Adding to another liquid gives volume change not mass. Centrifuging separates components by density, not for mass - measurement. A tared volumetric flask (flask with known mass) filled with liquid and then mass - measured gives the liquid's mass as the difference between the filled and empty flask masses.
Answer:
Precisely fill a tared volumetric flask with liquid and record the mass.