okay so i already answered this question A. what is the density of an 84.7g sample of an unknown substance if the sample occupies 49.6cm^3? but question B. stumped me so question b. is what volume would be occupied by 7.75g of this same substance?

Question

okay so i already answered this question A. what is the density of an 84.7g sample of an unknown substance if the sample occupies 49.6cm^3? but  question  B. stumped me so question b. is what volume would be occupied by 7.75g of this same substance?

anonymous · Answer

well we know density=m/v

anonymous · Answer

and you solved a for m/v= and some density d

anonymous · Answer

and so now you have d=7.75/v  so you are just solving for v

anonymous · Answer

because a substance's density stays the same even though the mass or the volume changes

anonymous · Answer

im still kinda confused about the d=7.75/v

anonymous · Answer

so you found the density in part a right?

anonymous · Answer

yeah

anonymous · Answer

ok what was that number

anonymous · Answer

1.71 g/cm^3

anonymous · Answer

ok so
1.71=7.75/v and you solve for v because a substance's density is constant and you are given the new mass so you just need to find v

anonymous · Answer

does that make sense?

anonymous · Answer

kinda so would the answer be like 4.53 g/cm^3

anonymous · Answer

yes

anonymous · Answer

thank u soooo much for helping me

anonymous · Answer

np