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density question for lab report?

ok im doing a lab report and i have a simple question on density

i know its mass/volume

but

i have a mass sample o a rock that is 5.783g

measures in water that has risen 3.1 degree

the water that is in the container with nothing else is 35ml

with the rock it rises to 38.1ml

do i subtracted 38.1ml - 35ml to get the water amount or do i use 38.1ml?

im suppose to ind the density of the rock

2 Answers

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  • Anonymous
    1 decade ago
    Favorite Answer

    from what i understand from you description you subtract 35 mL from 38.1 mL to get 3.1mL then you divide 5.783/3.1 to get 1.865 g/mL

  • Anonymous
    4 years ago

    by dropping the gadgets into water, in a graduated beaker, you will discover how plenty water they displace. the coolest of your lip balm container displaced 0.4ml of water, then. that's with regard to the final option. then you definately dry it off, and weigh it. that supplies you the mass in grams, and you calculate the density by determining what share grams according to cubic centimeter each and each merchandise has. A cube of water a million cm on a facet has a quantity of a million ml and weighs one gram. So your lip balm cap took up in basic terms .4 ml, using fact that's small. If additionally weighed one gram, we would say that's heavier than water, and can consequently sink. And particular, the mass won't be in a position to be 0. extraordinary stuff like aerogels have little or no mass according to quantity, yet even they are in a position to't have a mass of 0.

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