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There are two principles you need to understand here called adhesion and cohesion. Adhesion is how much a substance sticks to another substance; cohesion is how much a substance sticks to itself.
Water's adhesive forces are stronger than its cohesive forces which cause it to stick to the walls of a container to create an downward meniscus.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoYou can get a concave and convex meniscus.
Convex ones are prdouced when molecules have a stronger attraction to each other than to the container.
Concave meniscus' are produced when molecules have a stonger attraction to the container.
Concave meniscus' get a curved line going up because the molecules of water on the side are attracted to the container so they come up and the middle molecules just stay where they are because they cannot cling to anything.
Wiki User
∙ 14y agoThe meniscus curve is the curve of a liquid at the top of the water level of a graduated cylinder. It is formed from the tension of the water.
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Uses of a graduated cylinder?
1. Look at the liquid at eye level 2. Measure from the meniscus (the curved line at the surface of the liquid) 3. Be sure to measure your intervals (the value of each measurement line on the cylinder)
What bottom of the liquid line in a cylinder is called?
its called a meniscus
What is a meniscus why it necessary to know about it when measuring liquids?
The meniscus is the concave line of liquid that forms in a graduated cylinder (measuring volume) due to that liquid's adhesion (the tendency to want to stick to other things). When measuring a liquid's volume in a graduated cylinder, you read the volume from the bottom of the meniscus. Therefore, the meniscus does not measure anything, it is where you measure a liquid's volume from.
What precautions to take when using measuring cylinder?
A measuring cylinder is used to measure the volume of liquids. A measuring cylinder is used for measuring solutions, liquids and also water. For example, a solution made up of salt and water could be measured.
Why should you measure a liquid at the bottom of the meniscus?
The liquid molecules are more strongly attracted to the graduated cylinder than to each other. This causes the liquid to rise up on the sides of the graduated cylinder. Therefore it is important to read the line, even with the center of the meniscus, and at the bottom of the meniscus to accurately measure the volume of a liquid in the graduated cylinder. If you are still a bit confused I also found some information at this website: http://chemistry.about.com/od/chemistrylabexperiments/qt/meniscus.htm
What is the curved line that forms when water is in a graduated cylinder?
This line is called the meniscus.
What is the the bottom of a curved line in a graduated cylinder?
The "bottom of a curved line" made by the liquid in a graduated cylinder could be called the "measuring line" or "reference line" in the application of that piece of labratory equipment. The curved surface of the liquid itself is called the meniscus, and we look to the bottom of the meniscus to make our reading as to the volume of the liquid in the graduated cylinder. The liquid in the cylinder "grabs" the sides of the cylinder and "pulls itself up" just a bit, and that creates the curve in the surface of the liquid. And that curve, the meniscus (which is from the Greek word for crescent), leaves us with a problem: where do we "read" the volume marked off by the graduations along the side of the cylinder? And the answer is, "At the bottom of the meniscus."
What is the curved line at the surface of the liquid called?
Meniscus
Definition of curved line?
A kind of line which is not required to be straight. Curved lines are often called irregular lines.
What is the line on the graduated cylinder called?
meniscus
How do you use measuring cylinder?
A graduated cylinder is used to measure liquid volume in milliliters, mL. When you place a liquid into a glass graduated cylinder, you will see that the "line" at the top of the column of liquid is actually curved downward. This is called the meniscus. When you measure the liquid volume, you record the volume in mL at the bottom of the meniscus.
Uses of a graduated cylinder?
1. Look at the liquid at eye level 2. Measure from the meniscus (the curved line at the surface of the liquid) 3. Be sure to measure your intervals (the value of each measurement line on the cylinder)
What bottom of the liquid line in a cylinder is called?
its called a meniscus
What is a meniscus why it necessary to know about it when measuring liquids?
The meniscus is the concave line of liquid that forms in a graduated cylinder (measuring volume) due to that liquid's adhesion (the tendency to want to stick to other things). When measuring a liquid's volume in a graduated cylinder, you read the volume from the bottom of the meniscus. Therefore, the meniscus does not measure anything, it is where you measure a liquid's volume from.
Why are there lines on a graduated cylinder?
calibration mark
How do you read a graduated cylinder while using the meniscus?
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.
What is the meniscus line?
A meniscus line is the little line that you have at the top of a liquid. If you fill a glass up with water, the line that seems to sit at the top of the water that you see when you look at the glass at eye level is the meniscus line.
