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Level with the bottom of the fluid's meniscus
Always read from the bottom of the meniscus (where the liquid reaches up the side of the container).
Liquid Volume Measuring Devices: The Graduated Cylinder and Buret Like weighing, measuring liquid volume is a fundamental and frequently encountered lab task. However, liquid volume is frequently measured using either a graduated cylinder or a buret. As the name implies, a graduated cylinder is a cylindrical glass (or plastic) tube sealed at one end with a calibrated scale etched (or marked) on the outside wall. Graduated cylinders come in a range of sizes (volume capacities), and much like a measuring cup, volume is measured by adding liquid to the cylinder and comparing the liquid level to the graduated scale. The measured volume corresponds to the volume of liquid contained in the cylinder. Hence, the graduated cylinder and devices like it (volumetric flasks, Erlenmeyer flasks, and beakers) are classified as to-contain (TC) devices. The volume of liquid in the graduated cylinder is obtained directly by reading the calibrated scale. In most situations, the liquid will be water or an aqueous solution.The liquid surface is curved (U-shaped) rather than horizontal due to the relatively strong attractive force between water and glass. (The curved surface is called the meniscus.) As a general rule, the bottom of the meniscus is taken as the liquid level in the cylinder (and any other volume measuring device). The scale divisions on a graduated cylinder are generally determined by its size. For example, the 50-mL graduated cylinder is divided into 1 mL increments. However, the scale of a 10-mL graduated cylinder is divided into 0.1 mL increments, and the scale of a 500-mL graduated cylinder is divided into 5 mL increments.The graduated cylinder scale is a ruled scale, and it is read like a ruler. The scale is read to one digit beyond the smallest scale division by estimating (interpolating) between these divisions. With a 50-mL graduated cylinder, read (and record) the volume to the nearest 0.1 mL. The 10-mL graduated cylinder scale is read to the nearest 0.01 mL and the 500-mL graduated cylinder scale is read to the nearest milliliter (1 mL).A buret is a scaled cylindrical tube attached to a stopcock (valve). A buret is designed to dispense or transfer a precisely measured volume of liquid to another container. The volume of liquid dispensed is determined by reading and recording the buret scale which corresponds to the liquid level in the buret before any liquid is transferred, Vinitial (or Vi),and after the transfer is complete, Vfinal (or Vf). The volume of liquid transferred is obtained by difference (Vf - Vi) and it is sometimes designated as Vt.Burets are available in a limited range of sizes; the most common size is 50-mL. The scale of a 50-mL buret is divided into 0.1 mL increments. Therefore, when the liquid level in a buret is read, it is read (and recorded) to the nearest 0.01 mL. Water or aqueous solutions are the most common liquids used with a buret, and like the graduated cylinder the bottom of the meniscus is taken as the liquid lever. The buret and devices like it (pipet and syringe) is classified as a to-deliver (TD) devices.
The water will rise by the volume of the brass: volume = mass/density = 129g / 8.56 g/ml ≈ 15.1 ml → final reading ≈ 50.0 ml + 15.1 ml = 65.1 ml
The answer is Compression Ratio. You should try reading the Study Unit it really helps!
When you read a scale on the side of a container with a meniscus, such as a graduated cylinder or volumetric flask, it's important that the measurement accounts for the ... For mercury, take the measurement from the top of the meniscus. ...
The reading on the graduated scale is taken before and after the metal is lowered into the cylinder . The second reading is subtracted from the first. This gives the volume of the metal in cubic centimetres.
You should read a graduated cylinder at eye level. See the related link for rules regarding menisci.
A graduated cylinder is used for measuring liquid volumes accurately. By using a graduated cylinder, you can precisely measure out 100ml of liquid ensuring the correct volume is dispensed. The markings on the cylinder allow for easy reading and accurate measurement.
When reading a graduated cylinder, make sure your eye level is even with the meniscus - the curved surface of the liquid. Read the measurement at the bottom of the meniscus to get an accurate reading. Take into account any calibration markings on the graduated cylinder to ensure proper measurement precision.
To read the volume of water in a graduated cylinder, make sure your eye is level with the meniscus (the curved surface of the water). Read the volume at the bottom of the meniscus to get an accurate measurement. Ensure the graduated cylinder is on a flat surface to prevent parallax errors.
precision
Level with the bottom of the fluid's meniscus
it is important to keep the graduated cylinder on a flat surface when reading the meniscus so that your groogies dont escape and so that the results are good
To find the volume of an object that is larger than the graduated cylinder, you can use the displacement method. Fill the graduated cylinder with a known amount of water, then carefully lower the object into the water. The volume of the object will be equal to the initial volume reading minus the final volume reading after the object is submerged.
A graduated cylinder or a beaker can be used to measure the volume or capacity of a water bottle by pouring water from the bottle into the measuring instrument and reading the volume indicated on the scale.
You must read from the bottom of the meniscus. In a narrow, graduated glass cylinder, water has a slightly domed surface, with the centre being higher than the side, so giving a false reading if the centre height is taken.