The most accurate way to read a graduated cylinder is to place it on a flat surface. Bend down so you are eye level with the Meniscus Line, the line that is formed by the border between the unfilled portion of the cylinder and the top of the liquid. The very lowest part of this line is where you read the measurement. The markings are in whole numbers, 1, 2, 3, etc., with 10 lines between each number.
In a graduated cylinder-- the very top where water meets the air, you will see a slight dip down (caused by the effects of water tension)-- this dip is called the miniscus. To get an accurate reading, you must read the scale according to the lowest point on the miniscus.
Read at the center of the meniscus. Substances like water create a U-shaped meniscus, so read from the lowest point; substances like glycerin have an upside-down meniscus, so read from the highest point.
by looking at the miniscus (the bottom of the liquid when it curves up)you can tell what line the liquid level is on and measure from there
To make a rudimentary graduated cylinder, you will need a large syringe and measuring cup. Then, you will need to fill a plastic container and fill it slowly, marking off your progress.
A graduated cylinder is used to measure liquid. It must be sat on a level surface when filled with liquid.
The meniscus forms a U shape inside the cylinder. You want to read from the center point of the meniscus (the bottom-most point on the U.)
How would read a gradutated cylinder?
In milliliters (mL)
lower meniscus of acid hematin is considered while taking reading
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I suppose it depends upon the molarity (concentration) of the HCl. Ask your teacher or lab instructor for sure, but I would immediately place the graduated cylinder with the acid into a storage vessel of some kind, wash my hands thoroughly, then obtain new HCl and cylinder and start over. Do NOT just dump the HCl down the drain, unless it's really dilute. Again, ask your instructor for clarification.
whitch of the following volumes is the samllest ?
Using Archimedes principle we can find the density of such object. First let's weigh the body hanging in air using a physical balance. Let it be w1 Now immerse it in water kept in a beaker and weigh once again. Let it be w2. Now using the expression density can be found. Density = w1/ (w1 - w2)
All liquids have a surface tension. This tension creates a meniscus or curve on the surface, most noticeable in small diameter tubes or cylinders. The meniscus of water curves up the sides of the cylinder, while heavy liquids like mercury curves down the cylinder. You should always measure light liquids at the bottom of the meniscus and heavy liquids at the top of the meniscus.
The bottom of a graduated cylinder is flat, so it can sit on a table while you are doing your work.
They are two different ways of measuring. A balance measures weight (or technically, mass) while a graduated cylinder measures liquid volume.
They are two different ways of measuring. A balance measures weight (or technically, mass) while a graduated cylinder measures liquid volume.
displacement - invented by Archimedes. Completely fill a large volume of something with water. Have a spout to channel all excess water. Place a graduated cylinder under the spout. Place irregular object in the large volume filled with water. The volume of the irregular object will displace an equivalent volume of water into the graduated cylinder. The measured volume in the cylinder is the volume of the irregular object.
It depends on the smallest unit. For a 10mL graduated cylinder, the smallest unit is usually 0.1mL while a 100mL graduated cylinder is usually 1mL. Therefore: 10mL= (0.1mL/2) is an uncertainty of 0.05mL 100mL=(1mL/2) is an uncertainty of 0.5 mL Another way to think of it is that there are ten 10mL cylinders in an 100mL cylinder, so the 100mL cylinder has an uncertainty of ten times the 10mL. Hope this helped!
You would obtain the mass of the liquid while it was in the measuring cylinder and then, from the combined mass, you would subtract the mass of the cylinder to obtain the mass of the liquid.
Tom tore his meniscus while playing football, so he needed knee surgery.
lower meniscus of acid hematin is considered while taking reading
Yes you can. You put liquid (usually water) in the graduated cylinder. Then record how much liquid you put in it. Next, put the object in the graduated cylinder. Look at where the water level is now. Take that number and subtract the amount of water you put in and that should give you the approximate volume of the object.
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I suppose it depends upon the molarity (concentration) of the HCl. Ask your teacher or lab instructor for sure, but I would immediately place the graduated cylinder with the acid into a storage vessel of some kind, wash my hands thoroughly, then obtain new HCl and cylinder and start over. Do NOT just dump the HCl down the drain, unless it's really dilute. Again, ask your instructor for clarification.