Mass is 125 grams. Starting volume: 25.00 mL. Raised water level: 56.00 mL. What volume do I work with?
2006-09-01 12:35:07 · 8 answers · asked by Azriel 1 in Science & Mathematics ➔ Chemistry
If you mean you start out with 25.00 mL and end up with 56.00 when the thing is dropped in there, then the thing's volume is 31.00 mL
DENSITY IS MASS PER VOLUME, SO DIVIDE
125 g/31.00mL=4.03 g/mL, not 4.032 because you only gave 3 significant digits in "125" even though the other numbers plainly had 4 significant digits.
2006-09-01 12:48:30 · answer #1 · answered by Anonymous · 0⤊ 0⤋
No two objects can occupy the same space, so when you sink an object under water, the water level will go up to a new level. In a lab experiment you would sue a graduated cylinder filled about half way up. Record the exact volume of water. sink small objects of known mass in the graduated cylinder.Subtract the starting level from the new water level and you get the volume that the object fills. In this case 56.00ml-25.00ml=31ml, so your object has a mass of 125g and occupies 31.00ml.
the density can be calculated D=M/V.
Density is 4.03g/ml
2006-09-01 19:49:42 · answer #2 · answered by Roy G. Biv 3 · 0⤊ 0⤋
Density = Mass/Volume
The volume of the object equals to the displaced volume of the liquid..
Then you have ... -->Volume = 56.00-25.00 = 31 mL
Then... ---> Density = 125/31 = 4.0322 g/mL
2006-09-01 22:01:06 · answer #3 · answered by Alejandra J 2 · 0⤊ 0⤋
Density is simply mass per unit volume. Presuming the object in question is completely submerged, it displaces 56 - 25 = 31 mL. Its density is therefore
125g / 0.031 L = 4032 g/L
and the specific gravity is 4032/1000 = 4.032
2006-09-01 19:42:56 · answer #4 · answered by Anonymous · 1⤊ 0⤋
You want the volume of the object in water, so that would the difference in the two volumes.
Geez, you are going to have some serious problems if you cannot even figure this one out on your own.
2006-09-01 19:44:36 · answer #5 · answered by Alan Turing 5 · 0⤊ 0⤋
Density is mass times volume.
If you started at 25 ml and went up to 56 ml then the difference between 56 and 25 is your volume. multiply that by 125 grams and you have your density.
2006-09-01 19:40:53 · answer #6 · answered by Justin 3 · 0⤊ 3⤋
Depends upon the object. If it is hollow this wont work.
2006-09-01 19:41:19 · answer #7 · answered by Dr M 5 · 0⤊ 0⤋
Copy the same question here and I will give you the answer.
What does the question ask you to do?
2006-09-01 19:39:07 · answer #8 · answered by knowbuddycares 3 · 0⤊ 0⤋