A 112.6g mass of unknown material is submersed in 102mL of water to yield a final volume of 126mL. The apparent density of the material is....?
I don't want to know the answer, just a brief explanation on how to solve this
2007-07-03 03:48:38 · 10 answers · asked by Liz 4 in Science & Mathematics ➔ Chemistry
Thanks you guys. Multiple choice questions where the answer is E (none of the above) always make me nervous.
2007-07-03 04:03:45 · update #1
the final volume (126ml) is the volume of the water (102ml) and the material, therefore, its volume is 24ml. Density is the relationship between the mass and the volume of an object (d = m / v). so, if you divide mass / volume you get the density (112.6g / 24ml = 4.69g/ml). and that's it!
2007-07-03 04:07:46 · answer #1 · answered by Anonymous · 1⤊ 0⤋
density is the amount of mass per unit of volume and has units such as g/cc or lbs/in^3. Sometimes Specific gravity is mistaken for density but it is not. Specific gravity is a ratio of the density of an object over the density of water and hence has no units.
2016-05-17 07:46:02 · answer #2 · answered by Anonymous · 0⤊ 0⤋
density is measured in kg/m3, or g/ml. meaning it just describes how much 1ml of this substance wights. for water it is 1.0.
all you have to do is divide the total mass of the solution by its volume. since you started with 102ml water (= 102g water, cause density is 1.0) and u added 112.6g whatever, the total mass (mass is additive) is 214.6g. and the total volume is 126ml. just divide the two.
check the numbers again, cause thus calculated the density is pretty low
2007-07-03 03:55:55 · answer #3 · answered by chem_freak 5 · 0⤊ 1⤋
Mass/Volume.
2007-07-03 04:00:19 · answer #4 · answered by ag_iitkgp 7 · 0⤊ 0⤋
Density is equal to mass divided by volume. you have the mass, and to find the volume, subtract the initial volume from the final volume and you have the volume of the object. Take your mass divided by your volume to find the answer.
2007-07-03 03:54:45 · answer #5 · answered by chemdad42 2 · 0⤊ 0⤋
the change in volume of the water is the volume of the unknown material. divide its weight by its volume to get density
2007-07-03 03:54:29 · answer #6 · answered by anotherhumanmale 5 · 1⤊ 0⤋
take the final and initial volume and suvtract
126-102=24mL
take the mass and divide by the volume
112.6g/24mL = X g/mL
2007-07-03 03:54:35 · answer #7 · answered by billgoats79 5 · 1⤊ 0⤋
Some issue with the question!
2007-07-03 03:58:39 · answer #8 · answered by Juliu C 6 · 0⤊ 1⤋
density = mass/volume
volume of amount dispersed...
2007-07-03 03:53:22 · answer #9 · answered by miggitymaggz 5 · 0⤊ 0⤋
112.6 / (126 - 102) = ..........g/ml
2007-07-03 04:00:20 · answer #10 · answered by The one with a tail... 5 · 1⤊ 0⤋