25g2-40g+16 = (5g-4)(5g-4) when factored
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25g
you need the density of the liquid. if the density is 1g/ml, 25ml = 25g
25/40 = 0.625 grams per mL or 0.625 grams per cubic centimetre
Density = Mass/Volume = 25/30 g/ml = 0.833... g/ml
d=m/v d=(25g)/(5cm3 ) d=5g/cm3