I know my formulas, but this is confusing me
2007-05-31 14:27:42 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
take a stack of 500 and measure it, say it is one inch, 3 X 5 X 1 =15 Cubic Inches. So the volume f one is 15/500 Cubic Inches or .03 cubic inch.
2007-05-31 14:34:19 · answer #1 · answered by Anonymous · 1⤊ 0⤋
The simplest way to calculate the volume would be to multiply length * width * thickness. The accuracy might be increased by calculating the volume of a stack of cards and then dividing the total volume by the number of cards in the stack. For example, take a stack of 100 cards, and measure the thickness of the stack. The volume of a single card would be length * width * thickness of the stack / 100.
As the card is made of paper, it is quite porous, so the above method would give the volume of not only the card itself, but also the air contained within the pores of the card. If you are looking to measure only the volume of the paper, you might use the displacement method. Put a known volume of liquid in a container. Submerge a card (or multiple cards) in the liquid and let it soak so that the air within the pores of the card is replaced with the liquid. Measure the displacement of the liquid and calculate the volume of the displaced liquid. The volume of the displaced liquid will be very close to the volume of the paper in the card(s). If you use multiple cards (you may have to to get a measurable displacement of the liquid) be sure to divide the total volume by the number of cards you used.
Still another method would be to weigh a card (or multiple cards) and divide by the density of the paper if known.
2007-05-31 21:46:15 · answer #2 · answered by megaz 1 · 0⤊ 0⤋
Take a stack of 100 3x5 cards. Measure the thickness of the stack. Suppose the thickness is 1 inch. Then the volume of the stack is 3 in x 5 in x 1 in = 15 cu in. The volume of one card is 15/100 = 0.15 cu in.
2007-05-31 21:35:06 · answer #3 · answered by steve_geo1 7 · 0⤊ 0⤋
Assuming you REALLY want to measure the volume of the index card, weigh it. Cut off an inch from one side (3x4), weigh it. Cut another inch off the same side (3x3). If you make a plot of the variable length, L vs mass, M, the slope of this line divided by the other length (3'') and the density of the card is the card's thickness. You can get the density by weighing and measuring a whole stack of cards.
2007-05-31 21:40:51 · answer #4 · answered by supastremph 6 · 0⤊ 0⤋
In order to find the formula, you need to know the depth of the card. Your volume will be 3 x 5 x the depth.
2007-05-31 21:31:04 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Add water to a beaker and measure the volume. Fold up the index card so it fits in the beaker and add it to the beaker... Record the change in volume of the water in the beaker( this is the volume of the card)... Also make sure the initial amount of water added will completely cover the card folded in the beaker.
2007-05-31 21:35:08 · answer #6 · answered by Jay G 1 · 0⤊ 0⤋
The area is the length x width = 15. If you want to find the volume you will have to determine the thickness of the card. When you determine that just multiply it by the area (15) to give the volume.
2007-05-31 21:32:11 · answer #7 · answered by drochem 5 · 0⤊ 1⤋
X is the depth of the card. Measure it, it will probably be less than 1mm.
width*Leignth*2 + Width*Depth*2 + Leingth*Depth*2
3*5*2 + 3*x*2 + 5*X*2
30 + 6X + 10X
30 + 16X
2007-05-31 21:34:43 · answer #8 · answered by jacobandalex 2 · 0⤊ 0⤋
multiply the length x width x height
2007-05-31 21:40:32 · answer #9 · answered by Sidney M 1 · 0⤊ 0⤋